allenai/quartz huggingface dataset:
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: Eric saw a shell of a snail that was very common in fossil form. Compared to one that is more rare, the common snail has a shell that is _____ hard.
Choices:
more
less
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: What would happen to the sharpness of the images in Jim's telescope if here increased the size of the mirrors inside of it?
Choices:
become sharper
become blurrier
Answer: A
Background: When the concentration of reactants is higher, the reaction rate is faster.

Question: Carmen is in class mixing solutions of reactants. The first solution has a very low concentration of reactants, while the second solutions concentration of reactants is higher. The reaction rate will be higher in the
Choices:
first solution
second solution
Answer: B
Background: When particles move more slowly, temperature is lower and an object feels cooler.

Question: A cold object indicates its particles are going
Choices:
fast
slow
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 greater water availability?
Choices:
steep slope
shallow slope
Answer: B
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: Will hit the ball with the bat. If he hit the ball with less force, the ball will experience _____ acceleration.
Choices:
less
more
Answer: A
Background: The will travel faster and farther if the batter hits it with more force.

Question: Something that travels faster has more or less force
Choices:
more
less
Answer: A
Background: Waves with greater amplitudes or shorter wavelengths have more energy.

Question: Dean was seeing how long the wavelengths were, and saw that they had small amplitudes. Dean concluded that these waves had energy that was
Choices:
larger
smaller
Answer: B
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: As we turn down the volume on a stereo that we are listening to the sound waves get
Choices:
smaller
larger
Answer: A
Background: Many diseases become more common as people grow older.

Question: Ian celebrated his 80th birthday. He is now _____ likely to contract a disease.
Choices:
more
less
Answer: A
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: Will turns down the decibels on his laptop. The sounds become
Choices:
quieter
louder
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 receives a blood transfusion, his blood pressure
Choices:
decreases
increases
Answer: B
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: An _____ pulse rate is a sign of more oxygen to cells.
Choices:
increased
decreased
Answer: B
Background: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

Question: When Mike has low blood pressure, Mike knows that the volume of his blood is
Choices:
low
high
Answer: A
Background: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.

Question: An increase in the use of fossil fuels will likely lead to _____ emissions of carbon dioxide.
Choices:
lower
higher
Answer: B
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: When objects move closer together, their magnetic attraction will
Choices:
increase
decrease
Answer: A
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: Dean held two magnets a few inches apart, and felt them pull at each other. He didn't feel a pull from the magnets when they were
Choices:
further
closer
Answer: A
Background: Older layers are deeper in the Earth, younger layers are closer to the surface.

Question: Johnny was looking at the layers of rock at the bottom of the canyon. He observed that the younger layers are
Choices:
Farther
Closer
Answer: B
Background: With better food and less chance of disease, the death rate fell.

Question: Mike noticed that more people in his group were living longer, because the food they had was
Choices:
better
worse
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 swiftly over the sloping fall, the erosion at the bottom of the waterfall will be
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: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be cooler in the end is the one that moves
Choices:
faster
slower
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 higher blood pressure. What is likely happening to the blood volume in the vessels?
Choices:
it decreases
it increases
Answer: B
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 planets get farther from the sun the sun's gravity on them becomes
Choices:
stronger
weaker
Answer: B
Background: The will travel faster and farther if the batter hits it with more force.

Question: John was watching a baseball game and made an observation. A ball hit would travel a greater distance if the force was
Choices:
Greater
Lesser
Answer: A
Background: As the total resistance increases, the current strength decreases.

Question: If Mona is building an electrical device and she decreases the total resistance of it, what happens to the current strength?
Choices:
increases
decreases
Answer: A
Background: The closer your finger is to your eyes, the greater the position changes because of parallax.

Question: John is thinking about parallax, and wants to test it. John holds his finger away from his eye, then draws it closer to his eye. At the farthest from his eye, the position will have changed to be
Choices:
lesser
greater
Answer: A
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: Tessa took a long run and noticed her veins were _____.
Choices:
smaller
larger
Answer: B
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: An alkane with two carbon atoms should have a _____ melting point than an alkane with six carbon atoms
Choices:
higher
lower
Answer: B
Background: The deeper you go, the darker the water gets.

Question: Fay was scuba diving at a depth of 100 feet while Rita was scuba diving at 10 feet. Who likely needs a flashlight?
Choices:
Fay
Rita
Answer: A
Background: In a parallel circuit, the resistance decreases as more resistors are added in parallel.

Question: The resistance will decrease in a circuit when resistors are added in
Choices:
parallel
series
Answer: A
Background: The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Question: If you apply a lot of force will an item accelerate
Choices:
faster
slower
Answer: A
Background: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.

Question: If Milo gets cold from being outside and his metabolism rate goes up, what happens to his body heat levels?
Choices:
decrease
increase
Answer: B
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: If Mona is examining her arteries and she looks at ones that are farther away from her heart, what happens to the size of the arteries?
Choices:
smaller
larger
Answer: A
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 get worse.
Choices:
farther away from
closer to
Answer: B
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: What happens when we get farther from the sun?
Choices:
cool down
heat up
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 larger amplitudes, then they also have energy that is
Choices:
greater
smaller
Answer: A
Background: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

Question: Rich increased the pH value of a solution in the lab. The acid is now
Choices:
stronger
weaker
Answer: A
Background: In exponential growth as the population size increases, the growth rate also increases.

Question: The growth rate _____ as the population increases in exponential growth.
Choices:
increases
decreases
Answer: A
Background: As blood volume in the body increases, blood pressure increases.

Question: If an elephant has more blood in its body then a wren, which animal has higher blood pressure?
Choices:
wren
elephant
Answer: B
Background: Using less nonrenewable resources means that they will last longer.

Question: If Mona begins using less nonrenewable resources what will happen to the length of time those resources will last?
Choices:
decrease
increase
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 Mona owns a car and she decides to switch to a cleaner burning fuel, will she create more or less pollution?
Choices:
more pollution
less pollution
Answer: B
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: If Mary is pushing her wagon and she decreases the force that she is applying to push it, what will happen to the wagon's acceleration?
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 less energy to remove electrons from?
Choices:
Will
Heather
Answer: A
Background: With better food and less chance of disease, the death rate fell.

Question: A flu vaccine was administered to residents in a large city and the vaccine was ineffective in lowering the risk of flu among the residents. This means that the higher risk of disease resulted in a
Choices:
higher death rate
lower death rate.
Answer: A
Background: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.

Question: Eric removed glaciers from his ocean model. The sea level likely
Choices:
increases
decreases
Answer: B
Background: When particles move more slowly, temperature is lower and an object feels cooler.

Question: A hot object indicates its particles are going
Choices:
fast
slow
Answer: A
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: When objects move apart, their magnetic attraction will
Choices:
increase
decrease
Answer: B
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: Mary walked closer to Paul. The force of magnetic attraction between them
Choices:
increases
decreases
Answer: A
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 increasing it's rate of metabolism, the body heat becomes
Choices:
Decreased
Increased
Answer: B
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: Which sort of atom would require less energy to split in a fission reaction,
Choices:
Helium, with its two protons
Plutonium, with its 94 protons?
Answer: B
Background: The higher the temperature of the liquid, the faster it will evaporate.

Question: As milk cools down, it will evaporate
Choices:
more
less
Answer: B
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: Will's spaceship flew closer and closer to the sun. The temperature _____ over time.
Choices:
increased
dropped
Answer: A
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: If an item has many carbon atoms its boiling point will be
Choices:
low
high
Answer: B
Background: The sooner cancer is detected the easier it is to treat.

Question: John was a doctor in a cancer ward and knew that early detection was key. The cancer being detected slowly makes the cancer treatment
Choices:
Easier
Harder
Answer: B
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: When Derek was in the hospital, his blood vessels had a larger diameter than normal, which meant that his body was running
Choices:
colder
warmer
Answer: B
Background: The Southern Hemisphere has less trash buildup in the oceans because less of the region is continent.

Question: If there were less land in the Southern Hemisphere, there would likely be _____ trash buildup in the oceans.
Choices:
more
less
Answer: B
Background: When a gas is squeezed into a smaller volume, the particles have less space to move.

Question: When someone is put into a smaller room how much space do they have to move?
Choices:
Less
More
Answer: A
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: What happens when we get closer to the sun?
Choices:
cool down
heat up
Answer: B
Background: Heavier objects press together with greater force, and this causes greater friction between them.

Question: James slid an anvil across the floor, then slid a pillow across the floor. Which object slid the shorter distance before stopping?
Choices:
anvil
pillow
Answer: A
Background: Electrons at higher energy levels, which are farther from the nucleus, have more energy.

Question: Dana is looking at electrons, which are moving at higher energy levels. Because these electrons have more energy, in relation to the nucleus they are
Choices:
closer
farther
Answer: B
Background: When the concentration of reactants is higher, the reaction rate is faster.

Question: If John increases the concentration of reactants in his solution, what will happen to the rate of reaction?
Choices:
it will become faster
it will become slower
Answer: A
Background: As the total resistance increases, the current strength decreases.

Question: Theo was removing resistors from a circuit. As the resistance increased due to his actions, the strength of the current
Choices:
increased
decreased
Answer: B
Background: The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Question: If you apply not much force will an item accelerate
Choices:
faster
slower
Answer: B
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 small container has space to move that is
Choices:
lesser
greater
Answer: A
Background: Heavier objects also have more friction because they press together with greater force.

Question: If Kevin slid a frying pan across the table and then slid an orange across the table, which object would slide the shorter distance?
Choices:
frying pan
orange
Answer: A
Background: The higher the crests are, the greater the amplitude of the wave.

Question: If Mona turns her radio up and increases the size of the crests of the soundwave it is producing, what happens to the amplitude of that wave?
Choices:
decreases
increases
Answer: B
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 farther from Earth, it will exert a _____ pull of gravity.
Choices:
higher
lower
Answer: B
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: If Milo is travelling underground and he moves deeper into the Earth, what happens to the pressure around him?
Choices:
decreases
increases
Answer: B
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: An _____ pulse rate is a sign of less oxygen to cells.
Choices:
increased
decreased
Answer: A
Background: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

Question: After pouring a bottle of non-acidic tea into a glass of water, should the solution have
Choices:
lower pH
higher pH?
Answer: B
Background: The availability of water is projected to get worse as demand increases.

Question: Milo lives in a small city, but the city has recently begun to experience an influx of people moving to it. As people move there and demand for water increases, what happens to the availability of water in Milo's city?
Choices:
increases
decreases
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 subtracts a resistor to a circuit, the resistance in the circuit will become
Choices:
stronger
weaker.
Answer: A
Background: The Southern Hemisphere has less trash buildup in the oceans because less of the region is continent.

Question: If there were more land in the Southern Hemisphere, there would likely be _____ trash buildup in the oceans.
Choices:
more
less
Answer: A
Background: As the total resistance increases, the current strength decreases.

Question: If Mona is building an electrical device and she increases the total resistance of it, what happens to the current strength?
Choices:
increases
decreases
Answer: B
Background: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.

Question: If Mona is driving her car and she begins to accelerate, what happens to the car's kinetic energy?
Choices:
increases
decreases
Answer: A
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 to the city, what can happen to his asthma?
Choices:
gets worse
gets better
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 decreased?
Choices:
increase
decrease
Answer: B
Background: In a Mercator projection, because Greenland is closer to the pole, the continents shape and size are greatly increased.

Question: Jim is moving continents around on a map using the Mercator projection. What will happen to the size of a continent if he moves it closer to the North Pole?
Choices:
it will become larger
it will become smaller
Answer: A
Background: The higher the frequency is, the more energy a photon has.

Question: A photon with more energy than another will also have a _____ frequency.
Choices:
higher
lower
Answer: A
Background: As photosynthesis increases, the amount of stored glucose in the guard cells increases.

Question: If Jim is performing experiments on plants and he manages to decrease the rate of photosynthesis in those plants, what happens to the amount of stored glucose inside the plants?
Choices:
it increases
it 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: Eric saw a shell of a snail that was very rare in fossil form. Compared to one that is more common, the rare snail has a shell that is _____ hard.
Choices:
more
less
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 greatest gravitational force between them?
Choices:
Earth and Neptune
Jupiter and Neptune
Answer: B
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 faster to _____ _____.
Choices:
warm up
cool down
Answer: A
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 focus the Sun's rays. What can you say about the beam of light created?
Choices:
it has more energy
it has less energy
Answer: A
Background: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Question: Will has a simulation with exponential death. As the population in his model decreases, the growth rate also
Choices:
increases
decreases
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 decrease the strength of it, what should he do to the current?
Choices:
decrease it
increase it
Answer: A
Background: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Question: Will's spaceship flew further and further from the sun. The temperature _____ over time.
Choices:
increased
dropped
Answer: B
Background: Electrons at higher energy levels, which are farther from the nucleus, have more energy.

Question: Dana is looking at electrons, which are moving at lower energy levels. Because these electrons have less energy, in relation to the nucleus they are
Choices:
closer
farther
Answer: A
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: Mary walked farther from Paul. The force of magnetic attraction between them
Choices:
increases
decreases
Answer: B
Background: Heavier objects press together with greater force, and this causes greater friction between them.

Question: Dan falls from a single stair one day, then the next day falls down three stairs at once. After falling down three stairs, compared to just the one, Dan will experience
Choices:
greater friction
less friction
Answer: A
Background: In a Mercator projection, because Greenland is closer to the pole, the continents shape and size are greatly increased.

Question: Sarah is traveling, and notices that continents get larger when they are where in relation to the pole
Choices:
closer
further
Answer: A
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: _____ boiling and melting points are a result of alkanes with less carbon atoms.
Choices:
Higher or
lower
Answer: B
Background: The closer your finger is to your eyes, the greater the position changes because of parallax.

Question: If Mona moves her index finger farther from her eyes, what happens to the amount of position change her eye experiences?
Choices:
decrease
increase
Answer: A
Background: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.

Question: The government of Canada is considering implementing less 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: B
Background: The Southern Hemisphere has less trash buildup in the oceans because less of the region is continent.

Question: If there is less land the trash levels will be
Choices:
higher
lower
Answer: B
Background: With better food and less chance of disease, the death rate fell.

Question: Mona lives in a city with poor access to food. If a city that has more money starts providing food to her city, what will happen to the death rate in Mona's city?
Choices:
increase
decrease
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: A star that is blue in color is usually
Choices:
cold
hot
Answer: B
Background: Many diseases become more common as people grow older.

Question: A man just turned 20 and is celebrating his Birthday. Compared to when the man becomes 80, he is now _____ likely to find out he has a disease/
Choices:
more
less
Answer: B
Background: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.

Question: An decrease in the use of fossil fuels will likely lead to _____ emissions of carbon dioxide.
Choices:
lower
higher
Answer: A
Background: Drier climates generally have less water for people to use.

Question: People have _____ water in deserts than in forests.
Choices:
more
less
Answer: B
Background: The greater the wasted output energy, the less efficient the system.

Question: Milo uses an engine to produce energy at his job. If his engine starts producing less wasted output energy, what would happen to the efficiency of his system?
Choices:
more efficient
less efficient
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 slowly and then increases the speed, what happens to the amount of energy produced?
Choices:
increases
decreases
Answer: A
Background: The deeper you go, the darker the water gets.

Question: When you reach the bottom of the ocean it is nearly _____ because of the light levels
Choices:
black
white
Answer: A
Background: The higher the temperature of the liquid, the faster it will evaporate.

Question: If Jim is heating water in a beaker and he decreases the temperature, what will happen to the rate of evaporation?
Choices:
it will decrease
it will increase
Answer: A
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 easier to push across the ground?
Choices:
A 10 pound brick
A 1000 pound block
Answer: A
Background: Adding more heat energy to Earths atmosphere also causes more extreme weather and changes in precipitation patterns.

Question: When the oceans heat up it leads to
Choices:
more weather
less weather
Answer: A
Background: More people need more resources.

Question: Dean and Bob are having a party. Since there will be a large number of people there, the amount of resources must be
Choices:
small
great
Answer: B
Background: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: When Derek was in the hospital, his blood vessels had a smaller diameter than normal, which meant that his body was running
Choices:
colder
warmer
Answer: A
Background: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: Keith is showering, and is washing himself using a bar of soap, and then again with a loofah. Keith's skin will get worse exfoliation, due to the lesser friction, when he washes his body using the
Choices:
soap
loofah
Answer: A
Background: When a gas is squeezed into a smaller volume, the particles have less space to move.

Question: Carlos transferred his gas to a tiny tube, and he knows that as the particles try to move, there will be movement that is
Choices:
greater
smaller
Answer: B
Background: A stronger base produces more hydroxide ions than a weaker base.

Question: Something that has a little hydroxide is a _____ base
Choices:
weaker
stronger
Answer: A
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: If one tree has smaller leaves then the other, which one will lose the least water vapour?
Choices:
tree with smaller leaves
tree with bigger leaves
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 closer together, what will happen to the force of magnetic attraction between the rocks?
Choices:
increase
decrease
Answer: A
Background: The farther the material is stretched or compressed, the greater the elastic force becomes.

Question: The further the rubber in a slingshot is stretched, the _____ distance the rock travels.
Choices:
lesser
greater
Answer: B
Background: The higher the frequency is, the more energy a photon has.

Question: A light with a very long wavelength has
Choices:
high energy
low energy
Answer: B
Background: Using less nonrenewable resources means that they will last longer.

Question: If we half our use of nonrenewable resources, we will end up having _____ of them.
Choices:
less
more
Answer: B
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 hard stone will have erosion that is, compared to the other,
Choices:
greater
lesser
Answer: B
Background: Alkanes with more carbon atoms generally have higher boiling and melting points.

Question: An alkane with six carbon atoms should have a _____ melting point than an alkane with two carbon atoms
Choices:
higher
lower
Answer: A
Background: Waves with greater amplitudes or shorter wavelengths have more energy.

Question: Dean was seeing how long the wavelengths were, and saw that they had great amplitudes. Dean concluded that these waves had energy that was
Choices:
larger
smaller
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: john was working on a piece of wood. he found out that when the threads are farther apart, the amount of force needed is
Choices:
More
Less
Answer: A
Background: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

Question: If Mona is adding chemicals to her swimming pool before the start of the summer and she raises the pH number of the water, what happens to the acidity of the swimming pool?
Choices:
increases
decreases
Answer: B
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 slower?
Choices:
granite
marble
Answer: B
Background: Heavier objects press together with greater force, and this causes greater friction between them.

Question: Darrel puts two bowling balls together, then puts two tennis balls together. The tennis balls have friction that is
Choices:
greater
lesser
Answer: B
Background: The availability of water is projected to get worse as demand increases.

Question: Marie likes to take long, hot showers every day. The availability of the water she uses daily will _____ as demand increases.
Choices:
become less available
become more available
Answer: A
Background: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.

Question: Terry sees a cold day outside. He is _____ likely to produce body heat on this day.
Choices:
more
less
Answer: A
Background: The farther the material is stretched or compressed, the greater the elastic force becomes.

Question: Tina is putting on a sweater. As she stretches out the material, its elastic force
Choices:
increases
decreases
Answer: A
Background: The higher the temperature of the liquid, the faster it will evaporate.

Question: As water cools in a kitchen it evaporates
Choices:
less
more
Answer: A
Background: The higher the crests are, the greater the amplitude of the wave.

Question: If Jim is tuning his shortwave radio and he makes the crests lower, what happens to the amplitude of the waves?
Choices:
decrease
increase
Answer: A
Background: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

Question: A chemist compared two substances in the lab. Which substance will have a higher concentration of hydrogen ions?
Choices:
the substance with the higher pH
the substance with the lower pH
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: The Earth's gravitation for is weaker when _____ the sun.
Choices:
closer to
further from
Answer: B
Background: The farther the material is stretched or compressed, the greater the elastic force becomes.

Question: What happens to the amount of elastic force contained in Jim's rubber band if he decompresses it?
Choices:
decreases
increases
Answer: A
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: If Mona is comparing two organisms and she notices that one has a very hard shell and one has a very soft shell, which one will turn into a fossil easier?
Choices:
soft shell
hard shell
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: Compared to a jellyfish which is mostly water, would a clam with its hard shell be
Choices:
more likely to become a fossil
less likely to become a fossil?
Answer: A
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: Don is listening to music at very low decibel levels. His neighbors know that the sound waves have an intensity that is
Choices:
greater
lesser
Answer: B
Background: The farther the material is stretched or compressed, the greater the elastic force becomes.

Question: John was playing with the rubber band in the science lab when he noticed something. The more the band was relaxed, the elastic force became
Choices:
Higher
Lower
Answer: B
Background: As the total resistance increases, the current strength decreases.

Question: If there is only a little resistance in a wire the current at the end of the wire will be
Choices:
higher
lower
Answer: A
Background: When a gas is squeezed into a smaller volume, the particles have less space to move.

Question: When someone is put into a larger room how much space do they have to move?
Choices:
Less
More
Answer: B
Background: As decibel levels get higher, sound waves have greater intensity and sounds are louder.

Question: Don is listening to music at very high decibel levels. His neighbors know that the sound waves have an intensity that is
Choices:
greater
lesser
Answer: A
Background: Drier climates generally have less water for people to use.

Question: When deciding where to find water, Shane decides to seek the desert, because the drier climate means that the odds of finding water are
Choices:
greater
lesser
Answer: A
Background: This means the rate of diffusion is much slower in liquids than in gases, because the particles of a gas are further apart and collide much less.

Question: When particles are very far apart what happens to diffusion?
Choices:
increases
decreases
Answer: B
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: john was working on a piece of wood. he found out that when the threads are closer together, the amount of force needed is
Choices:
More
Less
Answer: B
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 planets get closer to the sun the sun's gravity on them becomes
Choices:
stronger
weaker
Answer: A
Background: Heavier objects press together with greater force, and this causes greater friction between them.

Question: Mike weighs 90 pounds and Tom weighs 200 pounds. Who likely experiences greater friction on the Earth?
Choices:
Mike
Tom
Answer: B
Background: Older layers are deeper in the Earth, younger layers are closer to the surface.

Question: The shallower that we dig under ground to find fossils the _____ they will be
Choices:
newer
older
Answer: A
Background: More people need more resources.

Question: Reid lives in a city with 5000 people. Eric lives in a city with 50000 people that is roughly the same size geographically. Whose city needs less resources?
Choices:
Eric
Reid
Answer: B
Background: This means the rate of diffusion is much slower in liquids than in gases, because the particles of a gas are further apart and collide much less.

Question: Eric noticed that diffusion was occurring quickly in a medium. This medium has particles that are
Choices:
closer together
further apart
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 down what happens to the oxygen levels in the body?
Choices:
decrease
increase
Answer: A
Background: The higher the frequency of an electromagnetic wave, the greater its energy.

Question: If Mary is performing an experiment and she decreases the frequency of her electromagnetic wave, what happens to the energy it produces?
Choices:
increases
decreases
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: If Jim is listening to music and he decreases the energy to the speakers, what happens to the loudness of the sound coming out of the speakers?
Choices:
decreases
increases
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 grew, the growth rate
Choices:
decreased
increased
Answer: B
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 fewer kids that the neighbors had, the population of the town went
Choices:
down
up
Answer: A
Background: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.

Question: Eric adds more glaciers to his ocean model. The sea level likely
Choices:
increases
decreases
Answer: A
Background: A stronger base produces more hydroxide ions than a weaker base.

Question: Terry has a strong base, some bleach, and a weak base, some water. Which likely contains fewer hydroxide ions?
Choices:
bleach
water
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: Dampeners are used to _____ energy which makes music softer.
Choices:
decrease
increase
Answer: A
Background: Adding more heat energy to Earths atmosphere also causes more extreme weather and changes in precipitation patterns.

Question: If Mona is studying the weather and Earth's climate and she notices that more heat energy is entering the atmosphere, what can she surmise about the upcoming changes in weather?
Choices:
more extreme
less extreme
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: When you keep removing positive items from an atom what happens to the electromagnetic force?
Choices:
Increases
decreases
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: If one tree has smaller leaves then the other, which one will lose the most water vapour?
Choices:
tree with smaller leaves
tree with bigger leaves
Answer: B
Background: The availability of water is projected to get worse as demand increases.

Question: Milo lives in a small city, but the city has recently begun to experience an influx of people moving to it. As people move there and demand for water decreases, what happens to the availability of water in Milo's city?
Choices:
increases
decreases
Answer: A
Background: A stronger base produces more hydroxide ions than a weaker base.

Question: Something that has a lot of hydroxide is a _____ base
Choices:
weaker
stronger
Answer: B
Background: The higher the frequency of an electromagnetic wave, the greater its energy.

Question: Theresa created an electromagnetic wave with frequency 10000 megahertz. Eric created a frequency of 20000 megahertz. Whose frequency has greater energy?
Choices:
Theresa
Eric
Answer: B
Background: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Question: Exponential growth of a population of animals means it
Choices:
increases
diminishes
Answer: A
Background: The greater the wasted output energy, the less efficient the system.

Question: An inefficient system will have _____ wasted energy than a highly efficient one.
Choices:
more
less
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 difficult to see because of the darkness of the water?
Choices:
the surface
30 feet deep
Answer: B
Background: The sooner cancer is detected the easier it is to treat.

Question: Dana had her cancer found in a very early stage. It is likely _____ to treat than if it had been detected later.
Choices:
easier
harder
Answer: A
Background: Older layers are deeper in the Earth, younger layers are closer to the surface.

Question: Jean is looking at a rock face that shows the layers of the Earth. Jean notes that the rocks towards the top of the exposed cliff have an age that is
Choices:
greater
lesser
Answer: B
Background: The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Question: John was observing the objects in the physics lab. He found that the more force is applied to an object, the acceleration will be
Choices:
More
Less
Answer: A
Background: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.

Question: Will created an electromagnet with a circuit breaker. If he increases the current, the electromagnet will become
Choices:
stronger
weaker
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 Mona is putting together a new crib and she wants to have an easier time screwing the pieces together, what should she look for in a screw?
Choices:
closer threads
farther threads
Answer: A
Background: The smaller the distance between the objects, the greater the force of magnetic attraction.

Question: When we put two magnets away from each other they become
Choices:
less attracted
more attracted
Answer: A
Background: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.

Question: As we get away from the heart what happens to the artery size
Choices:
grow
shrink
Answer: B
Background: When a gas is squeezed into a smaller volume, the particles have less space to move.

Question: Will pumped 10 grams of gas into a 10 gallon container. Riley pumped 10 grams of gas into a 200 gallon container. In whose container will the gas have less space to move?
Choices:
Will's
Riley's
Answer: A
Background: The higher the frequency of an electromagnetic wave, the greater its energy.

Question: If an electromagnetic wave has a lower frequency than another wave, it will have _____ energy.
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 close star, he should use a telescope with a
Choices:
smaller lens.
larger lens
Answer: A
Background: The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Question: Kyle kicked a ball across the field. If he kicked it harder it will accelerate
Choices:
more
less
Answer: A
Background: In a parallel circuit, the resistance decreases as more resistors are added in parallel.

Question: Compared to a parallel circuit with two resistors in parallel, would a parallel circuit with 20 resistors in parallel have a
Choices:
lower resistance
higher resistance?
Answer: A
Background: Heavier objects also have more friction because they press together with greater force.

Question: Bob moves a table across the floor. After, he moves a smaller chair. Which piece of furniture had more friction?
Choices:
chair
table.
Answer: B
Background: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.

Question: If Mona is driving her car and she begins to slow acceleration, what happens to the car's kinetic energy?
Choices:
increases
decreases
Answer: B
Background: The greater the wasted output energy, the less efficient the system.

Question: Terry's system wastes 50% of its energy, while Rick's system wastes 75%. The more efficient system is
Choices:
Terry's
Rick's
Answer: A
Background: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.

Question: If Jim is an endotherm and he increases his rate of metabolism, his body heat 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 less heat that was in the atmosphere caused changed in precipitation patterns that were
Choices:
Greater
Lesser
Answer: B
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: Derek is diving into the ocean. The pressure at the surface will be light, and the pressure the deeper he goes will be
Choices:
stronger
weaker
Answer: A
Background: The smoother the surface, the less friction against an object, so the faster it will move.

Question: If Jimbo takes a sander to his board and makes it smoother, what will happen to the friction of the board?
Choices:
increases
decreases
Answer: B
Background: The greater the wasted output energy, the less efficient the system.

Question: If a system gives off a minimum of heat then it is
Choices:
effective
wasted
Answer: A