allenai/quartz huggingface dataset:
Background: The higher the crests are, the greater the amplitude of the wave.

Question: Mike is looking at a video showing the amplitude of the waves of sound in the song he's listening to. The waves suddenly crest very high, so the amplitude of the waves now is
Choices:
lesser
greater
Answer: B
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: If you were to launch a cannon which ball would fly faster if everything else were the same?
Choices:
Heavier
Lighter
Answer: B
Background: When particles move more slowly, temperature is lower and an object feels cooler.

Question: If John is stirring a glass of water fast and then slows down to let the particles move slower, what happens to the temperature of the water?
Choices:
lower
higher
Answer: A
Background: Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.

Question: Will has two screws of the same length. One has 20 threads; the other has 200 threads. The screw with _____ threads likely needs less force to penetrate wood.
Choices:
20
200
Answer: B
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: An object with a smooth surface will have _____ friction than an object with a rough surface.
Choices:
more
less
Answer: B
Background: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Question: When a rabbit farmer begins a farm he starts with many rabbits. If the rabbits are not cared for and fed does the population
Choices:
decrease
increase
Answer: A
Background: Therefore, an object with more mass has greater thermal energy than an object with less mass, even if their individual atoms are moving at the same speed.

Question: A bear and a fox are trying to get a piece of meat to thaw using the heat from their bodies. Because of how thermal energy is spread, the animal who will thaw the meat first is the
Choices:
bear
fox
Answer: A
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: The arteries in the heart are _____ than the arteries in the toes.
Choices:
smaller
larger
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: Rich knows his heart branches into capillaries and arteries across his body. Which body part likely has less capillaries?
Choices:
intestines
toes
Answer: A
Background: The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.

Question: Jane was looking at different objects through her microscope. If she decided to make the convex lens in the microscope less curved, what would happen to the microscope's ability to magnify objects?
Choices:
it would decrease
it would increase
Answer: A
Background: Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.

Question: If you want to make screwing into wood more difficult you should use a screw with
Choices:
less threads
more threads
Answer: A
Background: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Question: If you rub your hands together very fast your hands will feel
Choices:
hotter
colder
Answer: A
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: If Mona is holding two rocks in her hands and she moves them farther apart, what will happen to the force of magnetic attraction between the rocks?
Choices:
increase
decrease
Answer: B
Background: The larger a telescope's mirror or lens, the better it is at seeing narrowly separated objects as individual objects and the sharper the images look.

Question: Dean looked at the sky with his eyes, then looked at the sky with his telescope. Dean saw less through his eyes, because the lens there was
Choices:
bigger
smaller
Answer: B
Background: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.

Question: Tony is running while Lester sits on the sidelines. Who has less kinetic energy?
Choices:
Tony
Lester
Answer: A
Background: The farther the material is stretched or compressed, the greater the elastic force becomes.

Question: The less the rubber in a slingshot is stretched, the _____ distance the rock travels.
Choices:
lesser
greater
Answer: A
Background: In exponential growth as the population size increases, the growth rate also increases.

Question: John was looking at statistics for births in the large city. He saw that as the population shrank, the growth rate
Choices:
decreased
increased
Answer: A
Background: As more protons are added to the nucleus, the electromagnetic force of repulsion between them gets stronger, while the strong nuclear force of attraction between them gets weaker.

Question: If a nucleus has many protons, it will also have a _____ nuclear force of attraction.
Choices:
weaker
strong
Answer: A
Background: Electrons at higher energy levels, which are farther from the nucleus, have more energy.

Question: The electrons with the _____ energy are nearest to the nucleus.
Choices:
most
least
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: Rich knows his heart branches into capillaries and arteries across his body. Which body part likely has more capillaries?
Choices:
intestines
toes
Answer: B
Background: The will travel faster and farther if the batter hits it with more force.

Question: Jack is learning to play baseball, and wants the ball to go very far. In order to do this, Jack will need to hit the ball
Choices:
harder
softer
Answer: A
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: Willy was skateboarding with his rough new board. Heather was riding his old skateboard, which was smoother from use. Who had more friction when riding?
Choices:
Willy
Heather
Answer: A
Background: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

Question: When we test something with a litmus test and the number is low it is
Choices:
acidic
basic
Answer: A
Background: When particles move more slowly, temperature is lower and an object feels cooler.

Question: If Mona is heating up popcorn in the microwave and the popcorn begins to move faster, what happens to the temperature of the kernels?
Choices:
increase
decrease
Answer: A
Background: The water erodes the softer rock faster than the harder rock.

Question: Shane sees two waterfalls; one made of hard stone, the other of soft rock. The waterfall with soft rock will have erosion that is, compared to the other,
Choices:
greater
lesser
Answer: A
Background: Older layers are deeper in the Earth, younger layers are closer to the surface.

Question: If Jim delves deep into the Earth and takes a sample then compares it to a sample he took close to the surface, which sample will be newer?
Choices:
deep sample
shallow sample
Answer: B
Background: Surface Area of Reactants When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react.

Question: If something has a lot of surface area and is being mixed with something else it will react
Choices:
slower
faster
Answer: B
Background: In the troposphere, temperatures decrease as altitude increases.

Question: Jimbo decided to take a hot air balloon ride. As the balloon fell down through the air, what would happen to the temperature?
Choices:
it would increase
it would decrease
Answer: A
Background: The higher the frequency is, the more energy a photon has.

Question: If Mona is measuring the frequency of photons and she notices that one photon has a higher frequency then another photon, which photon has more energy?
Choices:
lower frequency photon
higher frequency photon
Answer: B
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: If Milo turns down his radio by decreasing the decibel levels of the music, what can he expect from the sound waves generated by the radio?
Choices:
increased
decreased
Answer: B
Background: The greater the wasted output energy, the less efficient the system.

Question: If a system gives off a lot of heat then it is
Choices:
effective
wasteful
Answer: B
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: As the injection was given and the blood vessels expanded, Dean's blood moved through
Choices:
in smaller amounts
in greater amounts
Answer: B
Background: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.

Question: If Milo is using an electromagnet to lift a car and he wants to increase the strength of it, what should he do to the current?
Choices:
decrease it
increase it
Answer: B
Background: Certain respiratory conditions can be made worse in people who live closer to or in large cites.

Question: When people live in more polluted areas they will have
Choices:
more disease
less disease.
Answer: A
Background: But, in stars, the bluer the star, the hotter it is, and the redder it is, the older and colder it is.

Question: Compared to the blue super giant star Rigel, would the Sun, which is a yellow dwarf star, be
Choices:
hotter?
cooler
Answer: B
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: If you were to launch a cannon which ball would fly slower if everything else were the same?
Choices:
Heavier
Lighter
Answer: A
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: Reid analyzes particle speed. The heaviest particle he sees likely diffuses _____ than the lightest particle.
Choices:
faster
slower
Answer: B
Background: The more focused the Suns rays are, the more energy an area receives and the warmer it is.

Question: When it's a cloudy day, compared to when the sun is shining down unobstructed, the heat levels are
Choices:
higher
lower
Answer: B
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: Shane is learning about our atmosphere, and sees where the stratosphere is. Shane knows that the stratosphere is cold because, in relation to the Sun, it is
Choices:
close
distant
Answer: B
Background: More people need more resources.

Question: Jan and Brad were able to feed themselves only spending ten dollars a day total. After they lost their child, they had to spend five dollars a day total, because their familial population had
Choices:
shrank
grown
Answer: A
Background: Convection on early Earth was faster and so plate tectonics was faster.

Question: The convection of the Earth begins to speed up, so Daniel is worried that the plate tectonics will be
Choices:
faster
slower
Answer: A
Background: As more protons are added to the nucleus, the electromagnetic force of repulsion between them gets stronger, while the strong nuclear force of attraction between them gets weaker.

Question: John was looking at atoms in an electron microscope. What he noticed is that as the repulsion of the atoms was stronger, the force of attraction between them got
Choices:
Stronger
Weaker
Answer: B
Background: The deeper you go, the darker the water gets.

Question: Mary loves to dive in the ocean. What will happen to the water as she dives deeper?
Choices:
darker
lighter
Answer: A
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: Ollie was standing for 20 minutes while Jim was running for 20 minutes. Which person likely has temporarily engorged blood vessels?
Choices:
Jim
Ollie
Answer: A
Background: Even though the Sun is much larger than the Moon, the pull of the Suns gravity is much less because the Sun is much farther away.

Question: Jeff pilots his spaceship further away from the Sun. The ship experiences _____ gravitational force.
Choices:
more
less
Answer: B
Background: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.

Question: John was observing a circuit breaker in operation to see if it would pop. He noticed that as the current decreases, the electromagnet becomes
Choices:
Stronger
Weaker
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: Would smaller arteries be located
Choices:
attached to the heart
at the soles of the feet?
Answer: B
Background: Electrons at higher energy levels, which are farther from the nucleus, have more energy.

Question: The electrons with the _____ energy are farthest to the nucleus.
Choices:
most
least
Answer: A
Background: Drier climates generally have less water for people to use.

Question: People have _____ water in forests than in deserts.
Choices:
more
less
Answer: A
Background: The Southern Hemisphere has less trash buildup in the oceans because less of the region is continent.

Question: Will moved from Los Angeles to Sydney. In which city's hemisphere is there less ocean trash?
Choices:
Los Angeles
Sydney
Answer: B
Background: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

Question: Dan has relatively high blood volume, which means that within his blood vessels, there is pressure that is relatively
Choices:
lesser
greater
Answer: B
Background: Drier climates generally have less water for people to use.

Question: Allie lives in Phoenix and Tony lives in Seattle. Who likely would be least likely to suffer a drought in their city?
Choices:
Tony
Allie
Answer: A
Background: Many diseases become more common as people grow older.

Question: Ian celebrated his 8th birthday. He is now _____ likely to contract a disease.
Choices:
more
less
Answer: B
Background: The more focused the Suns rays are, the more energy an area receives and the warmer it is.

Question: Harry used a piece of glass to scatter the Sun's rays. What can you say about the scattered light created?
Choices:
it has more energy
it has less energy
Answer: B
Background: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.

Question: We shiver when it is cold because it allows us to produce
Choices:
more heat
less heat
Answer: A
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: If Mona is comparing a football and a baseball and she determines that the football is rougher then the baseball, which item has less friction?
Choices:
football
baseball
Answer: B
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: As the injection was given and the blood vessels constricted, Dean's blood moved through
Choices:
in smaller amounts
in greater amounts
Answer: A
Background: As blood volume in the body increases, blood pressure increases.

Question: John was measuring a patient's vital signs with a cuff device. As he watched the readings, he saw that as the patient lost blood volume, the patient's blood pressure
Choices:
decreased.
increased
Answer: A
Background: With better food and less chance of disease, the death rate fell.

Question: When everyone can eat what happens to the number of people that die?
Choices:
increases
decreases
Answer: B
Background: Hard shells fossilize more readily than soft bodied organisms, as they are better at resisting decay, take significantly longer to break down, and have a greater chance of surviving burial under layers of sediment.

Question: The reason we see fossils are made out of bone is because bone is _____ than tissue
Choices:
weaker
stronger
Answer: B
Background: More people need more resources.

Question: If the population of Mona's city has been growing recently and there are more people living there this year compared to last year, what happens to the need for resources?
Choices:
increased need
decreased need
Answer: A
Background: In a Mercator projection, because Greenland is closer to the pole, the continents shape and size are greatly increased.

Question: Continents will have _____ sizes if Greenland is closer to the North Pole than further.
Choices:
bigger
smaller
Answer: A
Background: As the total resistance increases, the current strength decreases.

Question: Theo was adding resistors to a circuit. As the resistance decreased due to his actions, the strength of the current
Choices:
increased
decreased
Answer: A
Background: The more focused the Suns rays are, the more energy an area receives and the warmer it is.

Question: An area with a heavy focus of the Sun's rays will likely be
Choices:
cool
warm
Answer: B
Background: Therefore, an object with more mass has greater thermal energy than an object with less mass, even if their individual atoms are moving at the same speed.

Question: John was watching the particle accelerator and notating the reactions of the atoms. He observed that an object with less mass has a thermal energy that is
Choices:
More
Less
Answer: B
Background: Surface Area of Reactants When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react.

Question: If John was applying cleaning chemicals to his car would the chemicals react _____ if he were to uncover a greater section of the car's exterior?
Choices:
more
less
Answer: A
Background: Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.

Question: Jack wants to screw a board to the wall, and would like to use maximum force, so the screws that Jack uses have threads that are
Choices:
spaced out
closer
Answer: A
Background: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Question: If you rub your hands together slower than before your hands will feel
Choices:
hotter
colder
Answer: B
Background: Heavier objects also have more friction because they press together with greater force.

Question: Katie is rolling balls on the grass. One is large and heavy, the other is light and small. The ball that is smaller will have friction that is
Choices:
greater
lesser
Answer: B
Background: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Question: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be warmer in the end is the one that moves
Choices:
faster
slower
Answer: A
Background: In a parallel circuit, the resistance decreases as more resistors are added in parallel.

Question: When Alec adds a resistor to the parallel circuit, there is
Choices:
more resistance
less resistance.
Answer: B
Background: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

Question: Which would experience a lower resistance from fluid friction while travelling through the ocean,
Choices:
a 150,000 ton cargo ship
a 10 pound canoe?
Answer: B
Background: As photosynthesis increases, the amount of stored glucose in the guard cells increases.

Question: Mike is growing flowers, so he grows some large ones and some small ones. The amount of stored glucose in the cells of the larger plants, compared to the smaller ones will be
Choices:
lesser
greater
Answer: B
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: An alkane with many carbon atoms should have a _____ boiling point.
Choices:
high
low
Answer: A
Background: As blood volume in the body increases, blood pressure increases.

Question: John is in the hospital due to losing too much blood. When he loses blood, his blood pressure
Choices:
decreases
increases
Answer: A
Background: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

Question: When the truck is moving slower, there is _____ fluid friction.
Choices:
more
less
Answer: B
Background: The larger a telescope's mirror or lens, the better it is at seeing narrowly separated objects as individual objects and the sharper the images look.

Question: If Ben wants to see a far away star, he should use a telescope with a
Choices:
smaller lens.
larger lens
Answer: B
Background: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.

Question: Which two objects likely have the least gravitational force between them?
Choices:
Earth and Neptune
Jupiter and Neptune
Answer: A
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: As we turn up the volume on a stereo that we are listening to the sound waves get
Choices:
smaller
larger
Answer: B
Background: The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.

Question: Rick has a flat magnifying glass while Jimmy has a curved convex lens. Who likely can't magnify the objects better?
Choices:
Rick
Jimmy
Answer: A
Background: When the concentration of reactants is higher, the reaction rate is faster.

Question: When we put more fire on a piece of food it will cook
Choices:
slower
faster
Answer: B
Background: The higher the temperature of the liquid, the faster it will evaporate.

Question: As milk heats up, it will evaporate
Choices:
more
less
Answer: A
Background: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Question: If Milo starts rubbing two surfaces together quickly and then decrease the speed, what happens to the amount of energy produced?
Choices:
increases
decreases
Answer: B
Background: Heavier objects also have more friction because they press together with greater force.

Question: Katie is rolling balls on the grass. One is large and heavy, the other is light and small. The ball that is larger will have friction that is
Choices:
greater
lesser
Answer: A
Background: Even though the Sun is much larger than the Moon, the pull of the Suns gravity is much less because the Sun is much farther away.

Question: As a planet moves closer to Earth, it will exert a _____ pull of gravity.
Choices:
higher
lower
Answer: A
Background: The higher the frequency is, the more energy a photon has.

Question: If Mona is measuring the frequency of photons and she notices that one photon has a higher frequency then another photon, which photon has less energy?
Choices:
lower frequency photon
higher frequency photon
Answer: A
Background: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.

Question: What would happen to the amount of carbon dioxide emitted if the amount of fossil fuels were increased?
Choices:
increase
decrease
Answer: A
Background: The availability of water is projected to get worse as demand increases.

Question: When seven nomads looking for water arrived at the oasis that was already occupied by four other people, was there
Choices:
more water to share
less water to share?
Answer: B
Background: The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.

Question: When using a magnifying glass the more curved one will be
Choices:
weaker
stronger
Answer: B
Background: With better food and less chance of disease, the death rate fell.

Question: Dr. Roberts noticed a decrease in the death rate. A(n) _____ chance of deadly disease likely contributed to this factor.
Choices:
increased
decreased
Answer: B
Background: As the magnification increases, the field of view decreases.

Question: Johnny is playing with his father's binoculars. What would happen to the field of view if he decreased the magnification of the binoculars?
Choices:
it would increase
it would decrease
Answer: A
Background: The will travel faster and farther if the batter hits it with more force.

Question: Jack is learning to play baseball, and wants the ball to go very slow. In order to do this, Jack will need to hit the ball
Choices:
harder
softer
Answer: B
Background: In a parallel circuit, the resistance decreases as more resistors are added in parallel.

Question: Compared to a parallel circuit with forty resistors in parallel, would a parallel circuit with 20 resistors in parallel have a
Choices:
lower resistance
higher resistance?
Answer: B
Background: But, in stars, the bluer the star, the hotter it is, and the redder it is, the older and colder it is.

Question: Rich sees a blue star with his telescope. Tina sees a red star with his telescope. _____ sees the hotter star.
Choices:
Rich
Tina
Answer: A
Background: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.

Question: A strengthening electromagnet indicates _____ current passing through the circuit breaker.
Choices:
more
less
Answer: A
Background: Heavier objects press together with greater force, and this causes greater friction between them.

Question: When an item is lighter and is gliding across something it will have
Choices:
less friction
more friction
Answer: A
Background: The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.

Question: Micah wants to be able to read very small text, and needs to use a tool to do so. He looks at two magnifying glasses, and chooses the one with the lens that is
Choices:
more curved
less curved
Answer: A
Background: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Question: As Dean was surveying the town, he noted that the more kids that the neighbors had, the population of the town went
Choices:
down
up
Answer: B
Background: Therefore, an object with more mass has greater thermal energy than an object with less mass, even if their individual atoms are moving at the same speed.

Question: Dan needs to stay warm in the woods, and can bring one animal for body heat to sleep next to him. Given the choice between a horse and cat, Dan will get the least help in staying warm by choosing the
Choices:
cat
horse
Answer: A
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: If Mona is comparing the weight of some particles of sand and she realizes that one particle is lighter then the other, will that particle diffuse faster or slower then the heavier one?
Choices:
faster
slower
Answer: A
Background: The larger a telescope's mirror or lens, the better it is at seeing narrowly separated objects as individual objects and the sharper the images look.

Question: When are using a telescope we know that the larger the mirror is means that there is a
Choices:
greater resolution
lower resolution
Answer: A
Background: Using less nonrenewable resources means that they will last longer.

Question: John was viewing the statistics of the power plants energy usage. He noted that the less resources it used, that the resources would last
Choices:
Longer
Shorter
Answer: A
Background: Amplified sound waves have more energy, which increases the intensity and loudness of the sounds, so they are easier to hear.

Question: If Jim is listening to music and he increases the energy to the speakers, what happens to the loudness of the sound coming out of the speakers?
Choices:
decreases
increases
Answer: B
Background: More people need more resources.

Question: When there are not a lot of people in one area they need
Choices:
many resources
low resources
Answer: B
Background: The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.

Question: If we are able to recycle less things we have
Choices:
more waste
less waste
Answer: A
Background: When a gas is squeezed into a smaller volume, the particles have less space to move.

Question: Jan puts a gas into a huge container, and then the same amount of gas into a small container. The gas in the huge container has space to move that is
Choices:
lesser
greater
Answer: B
Background: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

Question: Mary took a medication to lower blood pressure. What is likely happening to the blood volume in the vessels?
Choices:
it decreases
it increases
Answer: A
Background: The greater the wasted output energy, the less efficient the system.

Question: A highly efficient system will have _____ wasted energy than an inefficient one.
Choices:
more
less
Answer: B
Background: Certain respiratory conditions can be made worse in people who live closer to or in large cites.

Question: Eric has bad lung problems living 20 miles from New York. If he moves _____ the city, his health may improve.
Choices:
farther away from
closer to
Answer: A
Background: The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Question: Dina and Job are pushing carts down a hill to see who's will reach the bottom first. Both carts are identical. Dina pushes hard, and Job pushes softly. The cart that will reach the bottom of the hill last is
Choices:
Dina's
Job's
Answer: B
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: An object with a rough surface will have _____ friction than an object with a smooth surface.
Choices:
more
less
Answer: A
Background: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.

Question: In a village in Alaska they have watched the glaciers grow smaller which changes the sea level and makes it
Choices:
fall
raise.
Answer: B
Background: Leaves can have the following adaptations to reduce transpiration rate: Small or narrow leaves to reduce the surface area over which water vapour is lost

Question: A small pool will lose _____ water than a large pool.
Choices:
more
less
Answer: B
Background: A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.

Question: Jim is comparing two rivers. One has a steep slope and one has a shallow slope. Will the shallow slope or the steep slope provide less water availability?
Choices:
steep slope
shallow slope
Answer: A
Background: In a Mercator projection, because Greenland is closer to the pole, the continents shape and size are greatly increased.

Question: The way that Mercator makes a map the countries farthest to the poles appear
Choices:
larger
smaller
Answer: B
Background: Electrons at higher energy levels, which are farther from the nucleus, have more energy.

Question: If Milo is measuring the energy levels of electrons and he finds that a certain electron emits less energy than another, what does that say about that electron's distance from the nucleus?
Choices:
farther
closer
Answer: B
Background: A stronger base produces more hydroxide ions than a weaker base.

Question: Micah wants a base that is stronger rather than weaker. The number of hydroxide ions that will be produced are therefore
Choices:
more
less
Answer: B
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: Karen is studying friction in school. She wonders, of her two twin friends Sara and Samantha, which is causing more friction with the floor. They have on different shoes. Sara is wearing smooth soled tap shoes, while Samantha is wearing much rougher soled work boots. Assuming their weight is the same and all other factors are constant, _____ is creating less friction with the ground.
Choices:
Sara
Samantha
Answer: A
Background: With better food and less chance of disease, the death rate fell.

Question: Dr. Roberts noticed a increase in the death rate. A(n) _____ chance of deadly disease likely contributed to this factor.
Choices:
increased
decreased
Answer: A
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: If an item has few carbon atoms its boiling point will be
Choices:
low
high
Answer: A
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: If Milo is flying in a plane and he moves closer to the Sun, what happens to the temperature he feels?
Choices:
increases
decreases
Answer: A
Background: The greater the net force acting on the object, the greater its acceleration will be, but the mass of the object also affects its acceleration.

Question: Chrissy let off on the gas pedal of her car and went
Choices:
faster
slower
Answer: B
Background: In a parallel circuit, the resistance decreases as more resistors are added in parallel.

Question: What would happen to the reduce of Jim's parallel circuit if he added more resistors to it?
Choices:
increased resistance
decreased resistance
Answer: B
Background: Certain respiratory conditions can be made worse in people who live closer to or in large cites.

Question: If Milo has asthma and moves away from the city, what can happen to his asthma?
Choices:
gets worse
gets better
Answer: B
Background: The higher the temperature of the liquid, the faster it will evaporate.

Question: If Mona puts a pot of water onto the stove and it begins to heat up, what happens to the rate of evaporation of that water?
Choices:
increases
decreases
Answer: A
Background: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

Question: Dane is checking the pH of his project and sees that it is quite high, which means that the acid in his project is
Choices:
higher
lower
Answer: B
Background: The availability of water is projected to get worse as demand increases.

Question: When there are more people in an area the amount of water will
Choices:
increase
decrease
Answer: B
Background: Amplified sound waves have more energy, which increases the intensity and loudness of the sounds, so they are easier to hear.

Question: Timmy turned down his speakers to soft volume, meaning the sound waves had _____ energy.
Choices:
lower
higher
Answer: A
Background: The smoother the surface, the less friction against an object, so the faster it will move.

Question: John was watching the object slide across the table and other surfaces. He observed that the lower friction against it, and it will move
Choices:
Faster
Slower
Answer: A
Background: Convection on early Earth was faster and so plate tectonics was faster.

Question: Increasing plate tectonics indicates convection is
Choices:
increasing
decreasing
Answer: A
Background: The water erodes the softer rock faster than the harder rock.

Question: If Mona is comparing the erosion rates of two rocks and she notices that granite is softer then marble, which rock will water erode faster?
Choices:
granite
marble
Answer: A
Background: Waves with greater amplitudes or shorter wavelengths have more energy.

Question: Jacob was doing a science experiment in class and learned that when waves have less amplitudes, then they also have energy that is
Choices:
greater
smaller
Answer: B
Background: Many diseases become more common as people grow older.

Question: Wendy is 30 years old while Jefferson is 60 years old. Who is less susceptible to disease?
Choices:
Wendy
Jefferson
Answer: A
Background: The water erodes the softer rock faster than the harder rock.

Question: Compared to a very soft stone like limestone, diamonds, which are the hardest stone, would
Choices:
erode more slowly in water
erode more quickly in water?
Answer: A
Background: A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.

Question: Katie has a garden and she installs a small waterfall. Since Katie sets the water to flow very slow and gentle over the sloping fall, the erosion at the bottom of the waterfall will be
Choices:
more
less
Answer: B
Background: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.

Question: An electromagnet becoming weaker indicates _____ current passing through a circuit breaker.
Choices:
more
less
Answer: B
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: Joe was experimenting with decibels. He tried listening to it at different levels and noticed that as the decibels decreased the sound waves were
Choices:
more audible
less audible
Answer: B
Background: Many diseases become more common as people grow older.

Question: A man just turned 80 and is celebrating his Birthday. Compared to when the man was 20, he is now _____ likely to find out he has a disease/
Choices:
more
less
Answer: A
Background: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.

Question: When glaciers don't freeze a lot of sea water what happens to the sea levels?
Choices:
increase
decrease
Answer: A
Background: Increasing the number of resistors connected in parallel decreases the overall resistance of the circuit.

Question: Rita took away resistors from her parallel circuit. The overall resistance goes
Choices:
up
down
Answer: A
Background: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.

Question: A person that is moving slowly has what level of kinetic energy?
Choices:
Low
High
Answer: A
Background: The greater the net force acting on the object, the greater its acceleration will be, but the mass of the object also affects its acceleration.

Question: Chrissy stomped on the gas pedal of her car and went
Choices:
faster
slower
Answer: A
Background: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.

Question: As the Earth and sun rotate around each other, the force of gravity as the Earth moves away becomes
Choices:
More
Less
Answer: B
Background: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.

Question: The government of Canada is considering implementing more carbon taxes across the country. If these taxes were implemented, the amount of carbon dioxide emissions in the country would be expected to
Choices:
fall
rise
Answer: A
Background: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

Question: Rich decreased the pH value of a solution in the lab. The acid is now
Choices:
stronger
weaker
Answer: B
Background: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

Question: Alan is riding a bike. As he goes faster, the fluid friction resisting his motion
Choices:
increases
decreases
Answer: A
Background: The will travel faster and farther if the batter hits it with more force.

Question: If Jimbo is throwing a basketball and he applies less force, what happens to the distance that the ball will travel?
Choices:
increase
decrease
Answer: B
Background: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

Question: Due to levels of friction which of these would be harder to push across the ground?
Choices:
A 10 pound brick
A 1000 pound block
Answer: B
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: If Milo notices that his skin is becoming hot, what is happening to the diameter of his blood vessels?
Choices:
increasing
decreasing
Answer: A
Background: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

Question: When Mike has high blood pressure, Mike knows that the volume of his blood is
Choices:
low
high
Answer: B
Background: Waves with greater amplitudes or shorter wavelengths have more energy.

Question: If Jimbo notices that the amplitude of a wave has decreased, what can he say about the energy contained within that wave?
Choices:
it has increased
it has decreased
Answer: B
Background: Drier climates generally have less water for people to use.

Question: In Colorado, where water can be scarce, the snow in the mountains melts in the Spring. When there isn't very much snowfall in the winter does the water table
Choices:
raise
lower
Answer: B
Background: What this means is that at higher magnification, we are able to see objects of smaller and smaller size within our field of view.

Question: If Mona is looking at objects in her microscope and she increases the magnification, what happens to her ability to see small objects through it?
Choices:
decreases
increases
Answer: B
Background: Increasing the number of resistors connected in parallel decreases the overall resistance of the circuit.

Question: Josh is an electrician. If he adds a resistor to a circuit, the resistance in the circuit will become
Choices:
stronger
weaker.
Answer: B
Background: The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.

Question: Carol is building a small rocket to test in her back yard and, after much consideration, decides to use a biofuel to power her rocket. She tells her friends it's because it will create _____ carbon dioxide than fossil fuels.
Choices:
more
less
Answer: B
Background: A stronger base produces more hydroxide ions than a weaker base.

Question: If Jim increases the size of his base, what will happen to the rate of hydroxide ion production?
Choices:
increase
decrease
Answer: A
Background: In a Mercator projection, because Greenland is closer to the pole, the continents shape and size are greatly increased.

Question: Continents will have _____ sizes if Greenland is further from the North Pole than closer.
Choices:
bigger
smaller
Answer: B
Background: In the troposphere, temperatures decrease as altitude increases.

Question: As the plane climbed altitude, the passengers felt _____.
Choices:
cooler
warmer
Answer: A
Background: As the magnification increases, the field of view decreases.

Question: Increasing the field of view will cause magnification to
Choices:
increase
decrease
Answer: B
Background: Less energy is also needed to remove electrons from larger atoms in the same group of the periodic table.

Question: Will removes electrons from a large atom. Heather removes electrons from a smaller atom. Whose atom needed more energy to remove electrons from?
Choices:
Will
Heather
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: The arteries in the toes are _____ than the arteries in the heart.
Choices:
smaller
larger
Answer: A
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: Reid analyzes particle speed. The lightest particle he sees likely diffuses _____ than the heaviest particle.
Choices:
faster
slower
Answer: A
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: Joe was experimenting with decibels. He tried listening to it at different levels and noticed that as the decibels increased the sound waves were
Choices:
more audible
less audible
Answer: A
Background: The availability of water is projected to get worse as demand increases.

Question: When there are fewer people in an area the amount of water will
Choices:
increase
decrease
Answer: A
Background: Adding more heat energy to Earths atmosphere also causes more extreme weather and changes in precipitation patterns.

Question: John was watching the weather simulator and found an intriguing observation. The more heat that was in the atmosphere caused changed in precipitation patterns that were
Choices:
Greater
Lesser
Answer: A
Background: The deeper you go, the darker the water gets.

Question: Kathy slid into the water and went 30 feet deep before returning to the surface. At which point would it be more easier to see?
Choices:
the surface
30 feet deep
Answer: A
Background: When particles move more slowly, temperature is lower and an object feels cooler.

Question: Keely had just run a mile and was now running slower to _____ _____.
Choices:
warm up
cool down
Answer: B
Background: The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.

Question: Rick has a flat magnifying glass while Jimmy has a curved convex lens. Who likely can magnify the objects better?
Choices:
Rick
Jimmy
Answer: B
Background: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.

Question: Endotherms have the ability to regulate their own temperature. By decreasing it's rate of metabolism, the body heat becomes
Choices:
Decreased
Increased
Answer: A
Background: This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.

Question: If your blood pressure goes up what happens to the oxygen levels in the body?
Choices:
decrease
increase
Answer: B
Background: The availability of water is projected to get worse as demand increases.

Question: When four nomads left the oasis that had been occupied by seven people, was there
Choices:
more water to share
less water to share?
Answer: A
Background: The higher the frequency is, the more energy a photon has.

Question: A photon has more energy when the frequency is
Choices:
higher or
lower
Answer: A
Background: Convection on early Earth was faster and so plate tectonics was faster.

Question: The convection of the Earth begins to slow down, so Daniel is worried that the plate tectonics will be
Choices:
faster
slower
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: Would larger arteries be located
Choices:
attached to the heart
at the soles of the feet?
Answer: A
Background: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

Question: If Mona is comparing the weight of some particles of sand and she realizes that one particle is heavier then the other, will that particle diffuse faster or slower then the lighter one?
Choices:
faster
slower
Answer: B
Background: Drier climates generally have less water for people to use.

Question: In Colorado, where water can be plentiful, the snow in the mountains melts in the Spring. When there is very much snowfall in the winter does the water table
Choices:
raise
lower
Answer: A
Background: Adding more heat energy to Earths atmosphere also causes more extreme weather and changes in precipitation patterns.

Question: Polly is analyzing climate change. She deduces that removing heat energy from the atmosphere would _____ to changes in precipitation patterns.
Choices:
fix
cause
Answer: A
Background: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Question: Two hands are rubbing together fast, two other hands rub slowly, so the faster hands will make heat in amounts that are
Choices:
larger
smaller
Answer: A
Background: The water erodes the softer rock faster than the harder rock.

Question: A soft rock will erode _____ than a hard rock.
Choices:
faster
slower
Answer: A
Background: Using less nonrenewable resources means that they will last longer.

Question: Rita used less nonrenewable resources. These resources will now last
Choices:
longer
not as long
Answer: A
Background: Pressure: Pressure increases with depth, but increased pressure raises the melting temperature, so melting of rock is less likely to occur at higher pressures.

Question: Joan is trying to get rocks to melt by using depth to get lower pressure. The lesser the pressure that Joan applies to the rock, the melting temperature will be
Choices:
higher
lower
Answer: B