allenai/quartz huggingface dataset:
Background: In general, the farther away from the Sun, the greater the distance from one planets orbit to the next.

Question: If Mona is in space comparing the distance of certain planets from the Sun and she notices that Pluto is farther away then Neptune, which planet will have the larger orbit?
Choices:
Pluto
Neptune
Answer: A
Background: Larger telescopes can collect more light and see finer details than smaller telescopes.

Question: Dan wanted to be able to see the most light and detail when buying a telescope. Dan decided to buy a telescope that was
Choices:
smaller
larger
Answer: B
Background: Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.

Question: A wave with a longer wavelength will have a _____ frequency
Choices:
longer
shorter
Answer: B
Background: Greater use of oil and other fossil fuels causes more pollution.

Question: Mona lives in a city that uses much oil. If the mayor of that city decides to change their policy and the city begins using less oil, what happens to the amount of pollution generated by the city?
Choices:
increases
decreases
Answer: B
Background: Richer nations use far more energy resources, especially fossil fuels, than poorer nations do.

Question: If America is a rich nation and China is a poor nation, which nation uses less energy resources?
Choices:
China
America
Answer: A
Background: Anaerobic exercises cause muscles to get bigger and stronger.

Question: If you start incorporating anaerobic exercises into your workout routine, you can expect your muscle size to
Choices:
increase
decrease
Answer: A
Background: The water table is higher when there is a lot of rain and lower when the weather is dry.

Question: When you look at a lake after the rain the water levels are
Choices:
lower
higher
Answer: B
Background: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.

Question: What happens when we head from the core towards the surface of the earth?
Choices:
temperatures decrease
temperatures increase
Answer: A
Background: As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases.

Question: When it becomes less humid outside people are _____ to sweat.
Choices:
more likely
less likely
Answer: B
Background: At higher elevations, there is less air to press on a given area.

Question: If Mona is climbing a mountain and she moves to the top of the mountain, what happens to the air pressure pressing against her skin?
Choices:
increases
decreases
Answer: B
Background: As the distance between the objects increases the magnetic force of attraction decreases.

Question: Lisa is hitting a tennis ball against the wall. As the tennis ball bounces away from the wall and towards her, the magnetic force of attraction between the wall and the ball
Choices:
increases
decreases.
Answer: B
Background: The farther the sound waves travel away from the source, the more spread out their energy becomes.

Question: As sound waves move away from a speaker they become
Choices:
louder
quieter
Answer: B
Background: Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.

Question: Milo was playing around with water by changing the pH level. If he raised the pH what would happen to the acidity of the solution?
Choices:
it would decrease
it would increase
Answer: A
Background: Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.

Question: If the number of offspring of an species is decreased, what happens to the number of traits they have in common with one another?
Choices:
they will have more traits in common
they will have less traits in common
Answer: B
Background: A fluid exerts pressure in all directions, but the pressure is greater at greater depth.

Question: Mike dove deeper and deeper into the ocean trench. As he goes lower, the pressure exerted on him by the water
Choices:
increases
decreases
Answer: A
Background: In Life Sciences it is important to note that whenever a structure has an increased surface area, there is an increase in the functioning of that structure.

Question: When someone gets bigger what happens to their body functions?
Choices:
increases
decreases
Answer: A
Background: Sea level rises if an increase in seafloor spreading rate buoys up the ocean crust, causing the ocean basin to become smaller.

Question: John was looking at the ocean level data on his computer. He noticed that as the seafloor spreading rate decreases, the level of the sea
Choices:
Decreases
Increases
Answer: A
Background: Size restriction: The final body size is limited because as the body size increases, the surface area to volume ratio decreases.

Question: If your body size were to decrease, your surface area to volume ratio would
Choices:
decrease
increase
Answer: B
Background: More advanced farming practices allowed a single farmer to grow food for many more people.

Question: John was studying the history of agriculture for his master's project. He noticed that before the methods of farming became more advanced, the amount of food produced was
Choices:
Larger
Smaller
Answer: B
Background: The gravitational force between two objects decreases as the objects move further apart.

Question: What is the gravitational effect on an object that is close to Earth by Earth?
Choices:
high
low
Answer: A
Background: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

Question: If Mona is producing sound waves by listening to her radio at night and she turns down the volume, what happens to the amount of energy being produced by the radio?
Choices:
increases
decreases
Answer: B
Background: Larger alkenes have lower boiling and melting points.

Question: While in the lab, Sharon and Joe were testing alkenes; Sharon's alkenes were much smaller than Joe's. The melting point of Sharon's alkenes will be _____ than Joe's.
Choices:
lower
higher
Answer: B
Background: The full box is harder to move because it has greater mass and therefore greater inertia.

Question: If Jimbo is creating a ball from clay and he adds more clay to the ball, what does he do to the ball's inertia?
Choices:
increases it
decreases it
Answer: A
Background: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.

Question: Dan is snapping a rubber band at Sarah. He stretches the band as little as he can before he snaps it this time, which will mean its potential energy is
Choices:
large
small
Answer: B
Background: Pigments in the skin act like a filter that can prevent the skin from making vitamin D. As a result, people with darker skin need more time in the sun than people with lighter skin to make the same amount of vitamin D.

Question: A person with dark skin can absorb how much vitamin D?
Choices:
a lot
a little
Answer: B
Background: The greater the objects mass, the greater the force of gravitational attraction.

Question: If Mona reduces she is creating for her school project, what happens to the gravitational attraction of that object?
Choices:
increase
decrease
Answer: B
Background: In erosion, a slower moving stream will only carry smaller particles.

Question: A slow stream is capable of moving
Choices:
boulders
sand
Answer: B
Background: The glaciers on Earth are getting smaller and smaller as Earths temperature rises.

Question: Eric noticed a glacier outside his boat shrinking over time. The Earth's temperature is likely
Choices:
decreasing
increasing
Answer: B
Background: With higher frequencies, the microwaves also have more energy.

Question: As waves on the ocean grow in size and number they have.
Choices:
more energy
less energy
Answer: A
Background: The farther the object is stretched or compressed, the greater its elastic potential energy is.

Question: Letting a stretched a rubber band become looser _____ its elastic potential energy.
Choices:
decreases
increases
Answer: A
Background: Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.

Question: If Mona is done with a race and her chest contracts, what happens to the amount of air pressure in her lungs?
Choices:
increases
decreases
Answer: A
Background: Air pressure is less at higher elevations.

Question: Air pressure is higher in the
Choices:
mountains
valleys.
Answer: B
Background: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.

Question: Dana washes her hands a lot, so her bacteria has mutated to help to resist antibiotics. As that bacteria decreases in numbers, the mutation becomes
Choices:
common
rare
Answer: B
Background: Warming up exercises increases the blood flow to the muscles and increases the heart rate.

Question: Tony wanted to prevent cramps by warming up. This _____ blood flow to his muscles.
Choices:
decreases
increases
Answer: B
Background: Higher-frequency waves have more energy.

Question: Sasha decreases the frequency of a wave. This wave now has _____ energy.
Choices:
more
less
Answer: B
Background: Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.

Question: Mike is trying to make two different things slide across the ground. One is block, the other is a chair. The thing that will be hardest to push has
Choices:
more mass
less mass
Answer: A
Background: Decreasing air temperature increases atmospheric pressure.

Question: While checking the weather, Dale noticed that there was an inverse relationship between the temperature and atmospheric pressure. So as it was getting colder, he should expect the atmospheric pressure to
Choices:
increase
decrease
Answer: A
Background: In bigger atoms, valence electrons are farther from the nucleus.

Question: In science class, kids learned about how when atoms are larger, the distance between the valence electrons and the nucleus is
Choices:
bigger
smaller
Answer: A
Background: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.

Question: As we dig shallower into rocks they get
Choices:
younger
older
Answer: A
Background: The hotter a resistor becomes the more resistance it has.

Question: A cooling resistor will _____ in resistance.
Choices:
increase
decrease
Answer: B
Background: Sea level rises if an increase in seafloor spreading rate buoys up the ocean crust, causing the ocean basin to become smaller.

Question: If the ocean basin were to decrease, the sea level would
Choices:
rise
lower
Answer: A
Background: Bigger waves have more energy.

Question: Compared to a one inch ripple in a pond, would a 350 foot tall ocean tsunami have
Choices:
more energy
less energy?
Answer: A
Background: Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs.

Question: As a balloon deflates there is _____ air pressure forcing air out.
Choices:
more
less
Answer: A
Background: Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.

Question: Jim has never been a smoker. If he suddenly starts smoking cigarettes the amount of oxygen available in his lungs
Choices:
increases
decreases
Answer: B
Background: The older a person is, the greater their chance of developing a cardiovascular disease.

Question: An elderly person has a _____ risk of developing a cardiovascular disease than a young person.
Choices:
higher
lower
Answer: A
Background: The closer together the particles are, the greater the amplitude of the wave.

Question: A wave's amplitude will be _____ the closer its particles become.
Choices:
higher
lower
Answer: A
Background: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.

Question: Gerald laid down many rock layers. The layers on the bottom level were likely laid
Choices:
first
last
Answer: A
Background: Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.

Question: If the number of offspring of an species is increased, what happens to the number of traits they have in common with one another?
Choices:
they will have more traits in common
they will have less traits in common
Answer: A
Background: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.

Question: If Jim works hard and increases the strength of his muscles, his endurance becomes
Choices:
greater
smaller
Answer: A
Background: As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.

Question: When Ian has little energy, Ian moves
Choices:
quickly
slowly
Answer: B
Background: Larger telescopes can collect more light and see finer details than smaller telescopes.

Question: Roger liked to hike up mountains with his telescope to get away from the lights of the city. This trip, his back is not hurting him, so Roger packs a heavy-weight larger telescope than he normally brings, but opts to climb a lower mountain than usual. In spite of getting away from the city lights and being atop the mountain, with this larger telescope, the amount of detail that Roger will be able to see is expected to be
Choices:
more
less
Answer: A
Background: Water becomes more dense when it is colder and when it has more salt.

Question: If Jim raises the temperature of water in his bathtub, what happens to the density of the water?
Choices:
decreases
increases
Answer: A
Background: The more efficient a device is, the greater the percentage of usable energy it produces.

Question: When a device become less efficient, its production of usable energy will go
Choices:
up
down
Answer: B
Background: Temperature affects the rate at which photosynthesis, cellular respiration and decomposition take place. The rate of reaction increases with increasing temperature and decreases at lower temperatures.

Question: If Mona is in her greenhouse monitoring her plants and she decides to raise the temperature inside, what happens to the rate of cellular respiration her plants exhibit?
Choices:
decreases
increases
Answer: B
Background: In the mesosphere, temperature decreases as altitude increases.

Question: When we get higher in the air what happens to the temperature?
Choices:
goes up
goes down
Answer: B
Background: The harder the batter hits the ball, the greater will be its acceleration.

Question: Dan hits a car with his car. Dan was going forty miles an hour, and the other car was stopped. If Dan had hit the car going only twenty miles an hour, the stopped car would be moved
Choices:
more
less
Answer: B
Background: The pupil automatically gets bigger or smaller to let more or less light in as needed.

Question: Your pupils will _____ in size if you need more light to see.
Choices:
decrease
increase
Answer: B
Background: The more tightly packed the particles inside the material are, the more dense we say they are.

Question: When we pack a lot of things into a box it becomes
Choices:
less dense
more dense
Answer: B
Background: For a given medium, sound waves travel more slowly at lower temperatures.

Question: Eric moved to Arizona from Alaska. The higher temperatures overall mean that sound travels
Choices:
faster
slower
Answer: A
Background: The development of better missiles fostered better rocket technologies.

Question: Ollie is a rocket scientist and was testing missiles when the government cut her budget. Less missile development will likely result in _____ rockets.
Choices:
worse
better
Answer: A
Background: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.

Question: When waves in the ocean go fast there will be
Choices:
less
more
Answer: B
Background: The longer the exposure, the more light that the telescope can gather to make the image.

Question: When we leave a camera shutter open for a long time what happens to the light absorbed?
Choices:
increased
decreased
Answer: A
Background: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.

Question: Greta has 15 resistors in series on her circuit, while Evan has similar 2 resistors in series on his circuit. Whose circuit has the lowest resistance?
Choices:
Greta
Evan
Answer: B
Background: The density of the atmosphere decreases with an increase in the height above sea level (altitude).

Question: Yolanda moved to Florida where it is at sea level. The atmosphere here is considered
Choices:
dense
thin
Answer: A
Background: With less ozone in the stratosphere, more UV rays reach the ground.

Question: What happens to UV levels under the ozone hole?
Choices:
increase
decrease
Answer: A
Background: The higher the crests of a wave are, the greater the amplitude.

Question: The waves in the ocean are short meaning they have a _____ amplitude.
Choices:
high
low
Answer: B
Background: A: The more carbon atoms there are, the greater the number of possible arrangements of carbon atoms.

Question: A decrease of carbon atoms will result in _____ possible arrangements.
Choices:
less
more
Answer: A
Background: The closer to pH 14, the more strongly basic the solution.

Question: If Milo is adjusting the pH level of his pool and he brings the pH farther from 14 does the solution become more or less basic?
Choices:
more basic
less basic
Answer: B
Background: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.

Question: Dana is testing alkanes to see how they boil. She first heats up alkanes with more carbon atoms, and then some with fewer. The alkanes with fewer carbon atoms have a boiling point, compared to the other, that is
Choices:
lower
higher
Answer: B
Background: Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.

Question: Compared to microwaves do x-rays, which have a much higher wavelength than microwaves, have a
Choices:
lower frequency?
higher frequency
Answer: A
Background: A wave caused by a disturbance with more energy has greater amplitude.

Question: A tsunami created by a few rocks will create what size wave?
Choices:
small
large
Answer: A
Background: As the amount of water increases, the melting point of rock decreases.

Question: Richard dropped two identical rocks, one into a puddle, and the other into a swimming pool. After dropping both rocks, the rock dropped into the swimming pool had
Choices:
a higher melting point than the other rock
a lower melting point than the other rock
Answer: B
Background: Higher frequency waves have greater energy.

Question: A wave with a high frequency has _____ energy than a wave with a low frequency.
Choices:
more
less
Answer: A
Background: The size of the eroded particles depends on the velocity of the water. Eventually, the water deposits the materials. As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.

Question: Wendy turned the hose from half power to full blast. This makes the stream _____ likely to be able to deposit large rock particles.
Choices:
more
less
Answer: A
Background: The larger the animal, the heavier the exoskeleton, making movement more difficult.

Question: Harry has a pet walrus. Jim has a pet parrot. Whose pet has a heavier exoskeleton?
Choices:
Jim
Harry
Answer: B
Background: The closer together the particles are, the greater the amplitude of the wave.

Question: When crests get higher in a wave what increases?
Choices:
frequency
amplitude
Answer: A
Background: The more branching there is in isomers, the lower the boiling and melting points are.

Question: An isomer with more branching than another will have a _____ melting point.
Choices:
higher
lower
Answer: B
Background: For a given medium, sound has a slower speed at lower temperatures.

Question: If Mary is playing music in her room and the heater starts working, causing the temperature to rise, what happens to the speed of the soundwaves her radio is generating?
Choices:
increases
decreases
Answer: A
Background: If we increase the resistance in a series circuit, by adding more resistors, then the total current decreases.

Question: Polly was adding resistors to a circuit. Increasing the resistance in this series circuit will cause the total current to
Choices:
increase
decrease
Answer: A
Background: Sea level rises if an increase in seafloor spreading rate buoys up the ocean crust, causing the ocean basin to become smaller.

Question: As the sea floor condenses it causes sea levels to do what?
Choices:
rise
drop
Answer: B
Background: The closer the field lines are drawn together, the stronger the field being described.

Question: John was in his office looking at the diagrams. He saw that as the lines were sparser, the fields were
Choices:
Stronger
Weaker
Answer: B
Background: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.

Question: If Mary increased the temperature in her greenhouse what would happen to the rate of evaporation from water on her plants?
Choices:
it would increase
it would decrease?
Answer: A
Background: Breast cancer is rare in teens. It becomes more common as women get older.

Question: Eileen studied two identically sized populations of women, one in Springfield where the women were in their 50s and one in Mayfield where the women were in their 30s. The population with a lower incidence of breast cancer was
Choices:
Springfield group
Mayfield group.
Answer: B
Background: The closer objects are, the stronger the gravitational pull between them.

Question: Does a ball on earth have more or less gravity on it than in space?
Choices:
more
less
Answer: A
Background: Faster-moving water has more energy.

Question: Ollie pours his water quickly while Fay pours her water slowly. Whose water contains less energy?
Choices:
Ollie
Fay
Answer: B
Background: Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.

Question: If Mona is building a machine to help her vacuum her floor and she increases the amount of force the engine inside the vacuum, what happens to the vacuum ability to make work easier?
Choices:
increases
decreases
Answer: A
Background: The particles in matter are always moving. The more energy they have, the faster they move.

Question: When a child has a little energy they will move around
Choices:
slower
faster
Answer: A
Background: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.

Question: The cop shot the radar gun at the super fast car, which _____ the waves.
Choices:
increased
decreased
Answer: A
Background: The more mass a moving object has or the faster its moving, the greater its momentum.

Question: Between a marble and a cannon ball, both travelling at the same speed, the object with the least momentum would be
Choices:
the cannon ball
the marble?
Answer: B
Background: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.

Question: Compared to an Olympic sprinter in perfect condition, would an obese person who has never exercised be more likely to have a heart that can, with each beat, move
Choices:
more blood
less blood?
Answer: B
Background: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.

Question: James left a pot of water out in the sun. As the water started to heat up, what would happen to the rate of evaporation?
Choices:
increase
decrease
Answer: A
Background: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.

Question: When we relax a rubber band it has
Choices:
high potential energy
low potential energy
Answer: B
Background: Compared with a less powerful device, a more powerful device can either do more work in the same time or do the same work in less time.

Question: Andrew was showing Tim his brand new phone, one day. The boys decided they wanted to go to a bookstore but needed directions, they both looked up directions on their phone, whose phone found directions faster?
Choices:
Andrew
Tim
Answer: A
Background: Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.

Question: Jimbo cooled a pot of water in his refrigerator. What happens to the amount of oxygen contained in the water as the temperature decreases?
Choices:
increases
decreases
Answer: A
Background: A given volume of a denser substance is heavier than the same volume of a less dense substance.

Question: Sarah is carrying two tubs, one is filled with rocks, the other with feathers. The tub with rocks will be heavier because it is
Choices:
more dense
less dense
Answer: A
Background: The closer to the surface an aquifer is, the easier it is to get the water.

Question: If Jean's aquifer has risen to the surface of the pool then the water is how easy to get into?
Choices:
harder
easier
Answer: B
Background: The closer the field lines are drawn together, the stronger the field being described.

Question: Will draws some field lines very far apart from each other. This field is likely
Choices:
strong
weak
Answer: B
Background: The sooner cancer is treated, the greater the chances of a cure.

Question: Tina had her cancer discovered early. Her chances of a cure are likely _____ than if she had found it later.
Choices:
higher
lower
Answer: A
Background: The greater the objects mass, the greater the force of gravitational attraction.

Question: When two things are large they have what level of gravitational force?
Choices:
High
Low
Answer: A
Background: The development of better missiles fostered better rocket technologies.

Question: Ryan wants to have worse technology in the world, so do have that, he will need for the things currently being developed to be
Choices:
better
worse
Answer: B
Background: A given volume of a denser substance is heavier than the same volume of a less dense substance.

Question: Henry noticed that his piece of cake was lighter than his piece of butter. The cake was _____ dense.
Choices:
more
less
Answer: B
Background: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.

Question: John was looking at rocks in the valley and noticed something. The less resistant the rocks he looked at were, the amount they remained was
Choices:
Shorter
Longer
Answer: A
Background: The farther you stretch the band, the greater the resistance is.

Question: When we let a rubber band relax to a small size, it is easy to stretch meaning it has
Choices:
more resistance
less resistance
Answer: B
Background: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.

Question: Will decreases the population of his model of the world's population. The amount of water scarcity, if no other variables are changed, will likely go
Choices:
up
down
Answer: B
Background: Smaller tributary glaciers, like tributary streams, flow into the main glacier in their own shallower U-shaped valleys.

Question: What would happen to the size of the valley created by a tributary stream if the size of the stream were to be increased?
Choices:
the valley would be shallower
the valley would be deeper
Answer: B
Background: Muscles that are exercised are bigger and stronger than muscles that are not exercised.

Question: If a muscle is exercised, it will become
Choices:
bigger
smaller
Answer: A
Background: In an inverse relationship, when one variable increases, the other variable decreases.

Question: As water drips from a red bucket full of water into a blue bucket that is empty, does the water level in the red bucket
Choices:
increase
decrease?
Answer: B
Background: More water allows more chemical reactions.

Question: Timmy tested his chemicals by adding water and noticed _____ reactions.
Choices:
more
less
Answer: A
Background: The more similar the DNA molecules of different species are, the closer the relationship is likely to be.

Question: Two species with very similar DNA are probably _____ related.
Choices:
distantly
closely
Answer: B
Background: The stronger the winds are blowing, the larger the waves are and the more energy they have.

Question: Water will be moved _____ if there are strong winds.
Choices:
less
more
Answer: B
Background: The hotter a resistor becomes the more resistance it has.

Question: Paul measured a resistor's temperature at 20C. Another resistor he measured at 30C. If both resistors are the same type, which offers less resistance?
Choices:
20C
30C
Answer: A
Background: Longer length resistors will offer more resistance than shorter resistors.

Question: If Mona is building some resistors and she makes them longer, what happens to the resistance of them?
Choices:
decreases
increases
Answer: B
Background: As the rocks move deeper into the Earth, temperature and pressure increase.

Question: If you are in a volcano, as you decrease your distance to the surface, the temperature
Choices:
decreases
increases
Answer: A
Background: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.

Question: Ian wants to produce more pollutants, so he buys a car that is a plug-in hybrid. The car will run on electricity worse if it's plugged in for a
Choices:
longer time
shorter time
Answer: B
Background: Nations that have more industry produce more hazardous waste.

Question: If America has a bigger industrial sector then China, which country will produce less hazardous waste?
Choices:
America
China
Answer: B
Background: The size of the eroded particles depends on the velocity of the water. Eventually, the water deposits the materials. As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.

Question: Fewer particles are deposited when a river's speed
Choices:
increases
decreases
Answer: A
Background: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

Question: A population of squirrels in a local forest had less food available to them this spring than they did last spring. During which spring will more squirrels leave the area to live somewhere else?
Choices:
this spring
last spring
Answer: A
Background: To reduce friction, oil is added to the engine.

Question: If Milo's bike chain is not moving well and he adds no oil to it, what will happen to the levels of friction the chain experiences?
Choices:
increase
decrease
Answer: A
Background: The smaller a population is, the more allele frequencies may drift.

Question: Ford lives in a town with 6 thousand people. Wong lives in a town with 1 million people. Which population, if contained entirely, would experience less drifting allele frequencies?
Choices:
Ford
Wong
Answer: A
Background: Faster-moving water has more energy.

Question: When a car is going slow it has
Choices:
low energy
high energy
Answer: A
Background: Developing nations will also increase demands on natural resources as they build more factories.

Question: Compared to an undeveloped patch of Yellowstone national park, would the city of Detroit, which is a highly developed industrial city, consume
Choices:
fewer natural resources?
more natural resources
Answer: B
Background: The full box is harder to move because it has greater mass and therefore greater inertia.

Question: When something is very light and starts moving what level of energy does it have?
Choices:
high
low
Answer: B
Background: Water density increases as salinity and pressure increase, or as temperature decreases.

Question: Shannon is swimming and wants to find the least dense water to soak in. She will find water that has a pressure that is
Choices:
lower
higher
Answer: A
Background: Objects with greater mass have greater inertia.

Question: If Jimbo eats a lot of food and causes his mass to decrease what happens to his inertia?
Choices:
increases
decreases
Answer: B
Background: The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together.

Question: Linnie played with a rubber band by pulling at it with her hands. The less she pulled it apart, the _____ the force.
Choices:
weaker
stronger
Answer: A
Background: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.

Question: Tina is speeding on the highway, and a cop is sat on the road with a radar gun to see who to pull over. The cop's gun begins to detect a high frequency, with waves reflected being bunched up. The car was going
Choices:
faster
slower
Answer: A
Background: The sooner cancer is treated, the greater the chances of a cure.

Question: If cancer is detected late and treatment immediately late, the chances of a cure would be
Choices:
increased
decreased
Answer: B
Background: In erosion, the higher the elevation, the farther the stream is from where it will reach base level and the more cutting it has to do.

Question: If Milo is observing a stream at a low elevation and he follows the stream up to a higher elevation, what happens to the amount of cutting the stream has to do when eroding the stream bed beneath it?
Choices:
increases
decreases
Answer: A
Background: An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.

Question: The population of coyotes has fallen in Michigan, this raise in opportunistic predators has made the cat population
Choices:
raise
lower.
Answer: A
Background: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.

Question: Don is sending out wavelengths, and wants them to correspond to lower energies. In order to best do this, Don will send out wavelengths that are
Choices:
longer
shorter
Answer: A
Background: People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do.

Question: If America is a rich nation and China is a poor nation, then America's energy usage compared to China's is
Choices:
greater
smaller
Answer: A
Background: At higher elevations, there is less air to press on a given area.

Question: When we get to the top of a mountain the air is
Choices:
more dense
less dense
Answer: B
Background: The particles in matter are always moving. The more energy they have, the faster they move.

Question: Eric saw a fast moving particle and a slower one. The fast moving particle has _____ energy than the slower one.
Choices:
more
less
Answer: A
Background: The more basic a solution is, the closer its pH value will be to 14.

Question: Ian increases the pH of his water. Its pH value becomes more
Choices:
acidic
basic
Answer: B
Background: The more cylinders a car engine has, the more powerful its engine can be.

Question: A car with 8 cylinders is _____ than a car with 6 cylinders.
Choices:
less powerful
more powerful
Answer: B
Background: The faster the clicks of a Geiger counter occur, the higher the level of radiation.

Question: Evan crawls through the toxic waste dump. His Geiger counter clicks very slowly. The levels of radiation are likely
Choices:
high
low
Answer: B
Background: Objects with greater mass have a stronger force of gravity between them.

Question: An asteroid traveled equal distance between a small massed planet and a large massed planet and got caught by one of their gravitational pulls. Which one is more likely to have caught the asteroid?
Choices:
Small planet
Large planet
Answer: B
Background: Greater use of oil and other fossil fuels causes more pollution.

Question: Mona lives in a city that doesn't use much oil. If the mayor of that city decides to change their policy and the city begins using more oil, what happens to the amount of pollution generated by the city?
Choices:
increases
decreases
Answer: A
Background: Objects that are closer together have a stronger force of gravity between them.

Question: As two objects move apart, the force of gravity between them
Choices:
increases
decreases
Answer: B
Background: The more charged the objects are, the stronger the electrostatic force between them.

Question: If Mona is manipulating the charge of a couple of her objects, what happens to the electrostatic force if she increases the charge of one of the objects?
Choices:
increase
decrease
Answer: A
Background: The darker the urine, the less water it contains.

Question: Sandra had to pee, and when she did, she noticed her urine was dark, because she had consumed water in
Choices:
greater amounts
lesser amounts
Answer: B
Background: Older rocks are at the bottom and younger rocks are at the top.

Question: Tom conducted an archaeological dig and compared some of the rocks he found. He noticed that the rocks at 2 feet deep were _____ than the rocks at 20 feet deep.
Choices:
older
younger
Answer: B
Background: Lower temperature and higher salinity yield the densest water.

Question: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the winter morning is
Choices:
more dense
less dense.
Answer: A
Background: The closer to pH 14, the more strongly basic the solution.

Question: If Jim brings his solution closer to pH 14, what happens to the solution?
Choices:
becomes less basic
becomes more basic
Answer: B
Background: More UV rays increase skin cancer rates.

Question: Mona lives in a country that experiences low levels of sunlight. If she moves to a sunnier country, what happens to her chance of getting skin cancer?
Choices:
increases
decreases
Answer: A
Background: The higher the crests of a wave are, the greater the amplitude.

Question: When at the beach, Erin knows that there is a low amplitude, so the waves will be
Choices:
larger
smaller
Answer: B
Background: The stratosphere contains the ozone layer, the temperatures increase as altitude increases.

Question: As you travel through the ozone layer the temperatures become
Choices:
higher
lower
Answer: A
Background: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.

Question: If Jim is exploring layers of rock and he moves closer to the surface, what happens to the age of the rock?
Choices:
older
younger
Answer: B
Background: For bases we can state the folllowing: The higher the pH of a substance, the more basic it is.

Question: Sue measured water to be a pH of 7, and she measured bleach at a pH of 11. Which substance is less basic?
Choices:
water
bleach
Answer: A
Background: The density of the atmosphere decreases with an increase in the height above sea level (altitude).

Question: Yolanda moved to Denver where it is 5000 feet above sea level. The atmosphere here is considered
Choices:
dense
thin
Answer: B
Background: Larger alkenes have lower boiling and melting points, so they are liquids or waxy solids at room temperature.

Question: The smallest alkenes should have the _____ boiling and melting points.
Choices:
lowest
highest
Answer: B
Background: The gravitational force between two objects decreases as the objects move further apart.

Question: If Milo is holding two objects close together and he decides to move them closer together, what happens to the gravitational force between the objects?
Choices:
increases
decreases
Answer: A
Background: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.

Question: If Jim is exploring layers of rock and he moves deeper into the Earth, what happens to the age of the rock?
Choices:
older
younger
Answer: A
Background: At higher elevations, there is less air to press on a given area.

Question: As Brian climbed Mount Everest, there was _____ air.
Choices:
more
less
Answer: B