allenai/quartz huggingface dataset:
Background: Muscles that are exercised are bigger and stronger than muscles that are not exercised.

Question: Rita works out for half an hour while Quenton sits on the couch. Who's muscles have likely grown in size?
Choices:
Quenton
Rita
Answer: B
Background: Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.

Question: When you have air pressures change very little what happens to the wind?
Choices:
decreases
increases
Answer: A
Background: The more energy the particles in matter have, the faster and more strongly they vibrate.

Question: Compared to a kettle of boiling water, would the water molecules in a block of ice move
Choices:
faster?
slower
Answer: B
Background: An object with greater mass or greater velocity has more kinetic energy.

Question: When a car has less velocity what happens to its kinetic energy?
Choices:
increases
decreases
Answer: B
Background: If you are standing on the shore and a ship is going out to sea, the ship gets smaller as it moves further away from you.

Question: When we see something far away it looks
Choices:
bigger
smaller
Answer: B
Background: In electromagnetic waves with higher frequencies, photons have more energy.

Question: Don is looking at electromagnetic waves, and sees that the one's he observing have higher frequencies. Don is able to know then that the photons have energy that is
Choices:
higher
lower
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: Milo breeds cats for a living. If he wants his cats to share a specific trait, what should he do to the amount of offspring each cat produces?
Choices:
decrease
increase
Answer: B
Background: Faster-moving water has more energy.

Question: Sandy is running around the house doing laps. The faster she runs, the amount of energy she has is
Choices:
more
less
Answer: A
Background: Increased resource use generally means more waste; electronic waste from developed nations is a growing problem in the developing world.

Question: Less waste being noted indicates _____ use of resources.
Choices:
more
less
Answer: B
Background: If two objects have the same mass, the object with the higher temperature has greater thermal energy.

Question: Johnny was was playing with chalk outside. His mom called him in for lunch, while he was inside his red chalk sat in the shade, and his blue chalk was in the sun. When Johnny returned outside and picked up the red and blue which had a higher temperature?
Choices:
the red chalk
the blue chalk
Answer: B
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 an animal is able to eat food more difficult is it more or less likely to reproduce?
Choices:
more
less
Answer: B
Background: The elastic force increases the more the material is stretched or compressed.

Question: Joe is pulling a rubber band with his fingers. When does the band have the least elastic force?
Choices:
at rest
when stretched
Answer: A
Background: If we have two materials with the same volume, the material with a higher mass will be more dense.

Question: Jake pours syrup into one cup, then pours water into another, both in equal amounts. Jack can know that the syrup is the less dense of the fluids because it has
Choices:
more mass
less mass
Answer: B
Background: The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.

Question: Dave dropped a feather and a ball out of a window. The ball landed last because it had mass that, compared to the feather, was
Choices:
greater
lesser
Answer: B
Background: Water becomes more dense when it is colder and when it has more salt.

Question: Given two equal measures of water by volume, which would be lighter
Choices:
ocean water
distilled water?
Answer: B
Background: The upper rock layers are much younger.

Question: Rich was examining a cliff face. Which part of the cliff is older, geologically speaking?
Choices:
the base
the top
Answer: A
Background: This means that as wavelengths get shorter, more waves move past a particular spot in the same amount of time.

Question: As the train approached the intersection and blew its horn, compressing the wavelengths of the sound, did the frequency of the horn
Choices:
increase
decrease?
Answer: A
Background: Smaller sediments are dropped as the slope becomes less steep.

Question: When looking at a hill, Shane sees that the sand on the low slopes is
Choices:
finer
thicker
Answer: B
Background: In general, fossils in older rocks are less similar to modern organisms.

Question: John was comparing different fossils in his collection one day. If he were to compare characteristics of a very old fossil in his collection to a newer fossil in his collection, what would he find?
Choices:
high similarity
low similarity
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: If Jim upgrades his computer to a more powerful model, what happens to the amount of work it can perform?
Choices:
it can perform more work then before
it can perform less work then before
Answer: A
Background: Increased resource use generally means more waste; electronic waste from developed nations is a growing problem in the developing world.

Question: Wendy lives in a country that uses many resources. Which is likely true about the amount of waste produced compared to a developing country?
Choices:
it is more
it is less
Answer: A
Background: The more charged the objects are, the stronger the electrostatic force between them.

Question: If Jim decreases the strength of the charge between two of his objects, what will happen to the electrostatic force between them?
Choices:
it will increase in strength
it will decrease in strength
Answer: B
Background: Larger telescopes can collect more light.

Question: Milo works as an astronomer and he has multiple telescopes at his disposal. If he is looking at the stars through a small telescope and then moves to a larger one, will the amount of light collected by the larger one be
Choices:
greater
smaller
Answer: A
Background: Rougher surfaces have more friction between them than smoother surfaces.

Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has less friction?
Choices:
sandpaper
notebook paper
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 decreases the amount of force the engine inside the vacuum, what happens to the vacuum ability to make work easier?
Choices:
increases
decreases
Answer: B
Background: For example, more people on the Earth means more people contributing to global warming and pollution.

Question: Angel traveled from New York to Des Moines, IA , and experienced _____ pollution.
Choices:
more
less
Answer: B
Background: Gluons make quarks attract each other more strongly the farther apart the quarks get.

Question: When there are low levels of gluons in quarks it becomes
Choices:
weaker
stronger
Answer: A
Background: More people also means more clearing of land for agriculture and development.

Question: Carla takes a look at the populations of two countries. She finds Canada had about 37 million people in 2017. The United States had a population of 325 million in that same year. Therefore, the United States likely clears _____ land for agriculture and development than Canada.
Choices:
more
less
Answer: A
Background: A wave caused by a disturbance with more energy has greater amplitude.

Question: Will waves on the ocean be larger or smaller if they are caused by rocks compared to wind?
Choices:
larger
smaller
Answer: A
Background: At higher temperatures, particles of reactants have more energy, so they move faster.

Question: On a summer day, a person notes during a science project that the reactants have more energy, so they are now moving
Choices:
faster
slower
Answer: A
Background: If blood volume in the body decreases, blood pressure decreases.

Question: When there is more fluid in a tube the pressure in the tube
Choices:
increases
decreases
Answer: A
Background: In a series circuit, the resistance increases as more resistors are added in series.

Question: By removing twenty more resistors from the series circuit in series, the total resistance of the circuit was
Choices:
increased
decreased
Answer: B
Background: A wave caused by a disturbance with more energy has greater amplitude.

Question: Chin Lu watched the tsunami get weaker, and cause a _____ wave.
Choices:
huge
tiny
Answer: B
Background: As the amount of water increases, the melting point of rock decreases.

Question: Ian is trying to melt rocks, nothing that the water around the rocks is quite low. Since there is not a lot of water around the rocks, the melting point of the rock will be
Choices:
increased
decreased
Answer: A
Background: For a given medium, sound has a slower speed at lower temperatures.

Question: When animals are moving in the cold they are
Choices:
faster
slower
Answer: B
Background: So more water is displaced by a bigger body than a smaller one.

Question: Both Milo and Jerry jump into a pool. Milo is smaller then Jerry. Which person will displace more water when they jump in?
Choices:
Jerry
Milo
Answer: A
Background: Electromagnetic waves with shorter wavelengths have higher frequencies and more energy.

Question: Molly was viewing electromagnetic waves and noticed a wave with a wavelength of 20nm and another with 10nm. Which likely has less energy?
Choices:
the 20nm wave
the 10nm wave
Answer: A
Background: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.

Question: If Mona sells her gas car and switches to an electric car, what will happen to the amount of pollution she produces?
Choices:
increase
decrease
Answer: B
Background: The trade-off when the threads are closer together, is that more turns of the screw or bolt are needed to do the job because the distance over which the input force must be applied is greater.

Question: If Jim is screwing in two bolts and the first one has threads that are close together while the second one has threads that are far apart, which one must he apply greater force to?
Choices:
first bolt
second bolt
Answer: A
Background: The trade-off when the threads are closer together, is that more turns of the screw or bolt are needed to do the job because the distance over which the input force must be applied is greater.

Question: If you need to turn a screw a few times that requires
Choices:
less force
more force
Answer: A
Background: Waves with shorter wavelengths have more energy.

Question: When the ocean has waves one after the other they have
Choices:
less energy
more energy
Answer: B
Background: As blood glucose levels decrease, less insulin is produced.

Question: Bob's blood glucose levels have decreased, which means he should also be producing _____ insulin.
Choices:
less
more
Answer: A
Background: The longer the resistor, the more resistance it has.

Question: Chris needs a resistor for a science experiment he is conducting in class. He needs it to have the greatest resistance possible. If the second resistor is half as long as the first one, then the _____ will have the greater resistance.
Choices:
first one
second one
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 warmer, he should expect the atmospheric pressure to
Choices:
increase
decrease
Answer: B
Background: At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.

Question: If Mona has filled a balloon with helium and she removes some gas from it, what happens to the likelihood that the helium particles will collide with each other?
Choices:
more likely
less likely
Answer: B
Background: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.

Question: If Jim is an endotherm would his body give off _____ heat if the blood flow to the surface of his body were decreased?
Choices:
more
less
Answer: B
Background: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.

Question: Eric notices an increase in antibiotic resistance in a certain bacteria. The mutation that causes the resistance has become _____ common
Choices:
more
less
Answer: A
Background: Thicker wires offer less resistance.

Question: Chris is trying to rewire his home. He wants to install wiring that has the greatest resistance. He has two choice of wires. the first type of wire is 12 gauge. The second type of wire is thicker at 16 gauge. The wire that offers the most resistance will be the
Choices:
first type of wire
second type of wire
Answer: B
Background: Water near shore generally has more dissolved nutrients than water farther from shore.

Question: If water is far from a source of nutrients it will have
Choices:
few nutrients
more nutrients
Answer: A
Background: With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.

Question: Eric measures 20 hydrogen ions per 100ml in one solution. Another solution has 30 hydrogen ions per 100ml. The solution with less hydrogen ions is _____ acidic.
Choices:
more
less
Answer: B
Background: A given volume of a denser substance is heavier than the same volume of a less dense substance.

Question: John was weighing some materials in his science lab. He observed that as objects had greater density, the heaviness of the objects
Choices:
Increased
Decreased
Answer: A
Background: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.

Question: A small container that has 100 hydrogen ions is sitting near a larger container that has 2 hydrogen ions. The solution in the larger container is
Choices:
more acidic
less acidic.
Answer: B
Background: The smaller a population is, the more allele frequencies may drift.

Question: If Milo is part of a smaller population then Jerry is, which person's population will experience greater drifting of allele frequencies?
Choices:
Milo
Jerry
Answer: A
Background: A thinner wire is more difficult for electrons to move through than a thicker wire.

Question: John was looking at a diagram of an electrical system. He observed that it was less difficult for electronics to move when the wire was
Choices:
Thicker
Thinner
Answer: A
Background: As the distance between the objects increases, the force of gravitational attraction decreases.

Question: Two planets are drawn to each other in space, however they begin to drift apart over time. As the years press on, the planets will have a gravitation attraction between them that is
Choices:
greater
lesser
Answer: B
Background: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.

Question: Sue is moving from a cold city in Canada to a warm tropical island. The type of vegetation and rate of biological weathering be _____ in Sue's new habitat after she makes the move.
Choices:
greater
lesser
Answer: A
Background: Breast cancer is rare in teens. It becomes more common as women get older.

Question: Dana goes with her mother to get screened for breast cancer. The person who is more likely to have it has an age that is
Choices:
higher
lower
Answer: A
Background: Smaller tributary glaciers, like tributary streams, flow into the main glacier in their own shallower U-shaped valleys.

Question: Reid notices that tributary glaciers make U-shaped valleys when flowing. A large valley was likely caused by a _____ tributary glacier.
Choices:
small
large
Answer: B
Background: If the gas is heated, the particles will move faster as they gain more energy.

Question: Bob heats up some gas at the plant. When he does this, the gas particles move faster and
Choices:
gain energy
lose energy.
Answer: A
Background: In general, the farther away from the Sun, the greater the distance from one planets orbit to the next.

Question: NASA has sent an unmanned probe to survey a distant solar system with four planets. Planet Zorb is closest to the sun of this solar system, Planet Krakatoa is second closest, Planet Beanbag is third from the sun, and Krypton is the farthest. The probe visits the planets in order, first Zorb, then Krakatoa, then Beanbag and finally Krypton. Did the probe have to fly farther in its trip from
Choices:
Zorb to Krakatoa or
from Beanbag to Krypton?
Answer: B
Background: When particles move more quickly, temperature is higher and an object feels warmer.

Question: Rita sees a particle and makes it move very quickly. The temperature of the particle
Choices:
increases
decreases
Answer: A
Background: Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.

Question: In tornadoes the greater differences in air pressure cause _____ winds.
Choices:
lesser
stronger
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: Robin has an old computer that runs quickly, and Bryan has a weak new computer. When working on the same task, the computer that will finish the task first is
Choices:
Robin's
Bryan's
Answer: A
Background: At higher elevations, there is less air to press on a given area.

Question: Allen is riding his bike on a path. The course ends up 1000 feet higher above sea level compared to the beginning. At which point is the air resistance lower?
Choices:
at the beginning
at the end
Answer: B
Background: The farther the sound waves travel away from the source, the more spread out their energy becomes.

Question: A sound wave near its source, is spread out _____ than near its origin.
Choices:
more
less
Answer: B
Background: With fewer trees, the air is drier and droughts are more common.

Question: If Mona is a logger and she stops cutting down a forest full of trees, how will that affect the likelihood of a drought occurring?
Choices:
decrease
increase
Answer: A
Background: Chemical weathering increases as: Temperature increases: Chemical reactions proceed more rapidly at higher temperatures.

Question: The temperature has been dropping in a certain part of the world. The temperature change leads to _____ chemical weathering.
Choices:
less
more
Answer: A
Background: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.

Question: John was watching the planets rotate around the sun. He noticed that was the distance between the sun and earth is lower, the speed of Earth is
Choices:
Higher
Lower
Answer: A
Background: An object with greater mass or greater velocity has more kinetic energy.

Question: An object with large kinetic energy is probably
Choices:
small
large
Answer: B
Background: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.

Question: Someone that never works out will likely have _____ muscles than someone who lifts weights at home all day.
Choices:
larger
smaller
Answer: B
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 we are increasing energy used while running what will happen?
Choices:
speed up
slow down
Answer: A
Background: Objects that are closer together have a stronger force of gravity between them.

Question: Ferb and Honey are walking away from each other. What is true about the force of gravity between them as the distance between them increases?
Choices:
it increases
it decreases
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 rapidly. The levels of radiation are likely
Choices:
high
low
Answer: A
Background: The greater the mass of the objects, the stronger the gravitational pull between them.

Question: Two small planets are near each other, and two large planets are near each other. The larger planets, compared to the smaller planets will have a gravitational pull that is
Choices:
weaker
stronger
Answer: B
Background: The temperature of matter increases with the added energy.

Question: If Mona is heating up a pan on the stove to cook dinner with and she decreases the amount of energy coming out of the stove, what will happen to the pan on the stove?
Choices:
gets hotter
gets cooler
Answer: B
Background: Most nutrients are washed into ocean water from land. Therefore, water closer to shore tends to have more nutrients.

Question: If Mona is in her sailboat and she takes a sample of the water far away from shore to test for nutrients and compares it to sample that she took while close to the shore, which sample will have fewer nutrients?
Choices:
close to shore
far from shore
Answer: B
Background: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.

Question: If you are able to remove greenhouse gases the temperature will
Choices:
go up
go down
Answer: B
Background: Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.

Question: Rich breathed in and out. When he breathes _____ his chest seems larger.
Choices:
in
out
Answer: A
Background: The more tightly packed the particles inside the material are, the more dense we say they are.

Question: If Jim packs a greater amount of packing peanuts into a jar, what happens to the density of the peanuts?
Choices:
increases
decreases
Answer: A
Background: The harder the batter hits the ball, the greater will be its acceleration.

Question: If Jim wants to decrease the amount of acceleration applied to a baseball he must hit it
Choices:
harder
softer
Answer: B
Background: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.

Question: An object with great elastic potential energy _____ be easily stretched.
Choices:
will
won't
Answer: B
Background: The closer together the particles are, the greater the amplitude of the wave.

Question: If the particles move together, the amplitude of the wave should
Choices:
increase
decrease
Answer: A
Background: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.

Question: Sean digs in the dirt and finds rocks that are buried very shallowly. Given how deep they were, Sean can assume that these rocks are
Choices:
younger
older
Answer: A
Background: As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.

Question: John was looking in the microscope at some very small objects. What he observed was that the larger number of carbon atoms he saw, the number of isomers would quickly
Choices:
increase
decrease
Answer: A
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 less light to see.
Choices:
decrease
increase
Answer: A
Background: Countries with more industry produce more hazardous wastes than those with little industry.

Question: Theresa lives in a first world country. Eric lives in a third world country. Whose country likely produces less hazardous waste?
Choices:
Eric's
Theresa's
Answer: A
Background: Greater use of oil and other fossil fuels causes more pollution.

Question: The oil rigs had an oil spill in the ocean, which caused _____ pollution.
Choices:
less
more
Answer: B
Background: The longer the exposure, the more light that the telescope can gather to make the image.

Question: The longer the telescope stays focused the _____ the stars appear.
Choices:
more bright
less bright
Answer: A
Background: The more mass a moving object has or the faster its moving, the greater its momentum.

Question: Two cars are going down the road, one weighs a ton, the other weighs two tons. If both crash, the car weighing two tons will have a momentum that is
Choices:
smaller
larger
Answer: B
Background: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.

Question: John stretched a rubber band, making it larger and then smaller. The less he stretches the rubber band will it have _____ elastic potential energy?
Choices:
more
less
Answer: B
Background: The more similar the DNA molecules of different species are, the closer the relationship is likely to be.

Question: Two species with near similar DNA should have a _____ relationship.
Choices:
close
distant
Answer: A
Background: The temperature of matter increases with the added energy.

Question: Jeff adds energy to his water. The water becomes more
Choices:
cold
hot
Answer: B
Background: Gluons make quarks attract each other more strongly the farther apart the quarks get.

Question: Because of gluons, quarks are attracted each _____ strongly the closer they are.
Choices:
more
less
Answer: B
Background: More advanced farming practices allowed a single farmer to grow food for many more people.

Question: If Milo is a farmer and he wants to decrease the amount of bell peppers he grows, what should he do to advance his farming practices?
Choices:
increase them
decrease them
Answer: B
Background: Gravity is a pull which all matter exerts on all other matter, the more mass, the stronger the pull.

Question: A small planet has a _____ pull of gravity than a small planet.
Choices:
stronger
weaker
Answer: B
Background: But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.

Question: When we use a lot of technology to measure something it becomes
Choices:
more accurate
less accurate
Answer: A
Background: The sooner cancer is treated, the greater the chances of a cure.

Question: Compared to a person who takes four years to undergo cancer treatments after being diagnosed, would a person with the same cancer who undergoes treatment immediately after learning of their diagnosis be
Choices:
less likely to be cured?
more likely to be cured
Answer: B
Background: Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.

Question: Jean and John were going to have a baby, and they are both in great shape. Jean and John are likely to have offspring in numbers that are
Choices:
greater
smaller
Answer: A
Background: To reduce friction, oil is added to the engine.

Question: Dana wants things to slide around easily without too much friction, so she uses oil in amounts that are
Choices:
greater
smaller
Answer: A
Background: Increasing air temperature decreases atmospheric pressure.

Question: Donna gets headaches from having too little pressure in the atmosphere, so if Donna doesn't have a headache today, it means the air temperature is
Choices:
lower
higher
Answer: A
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 20 feet deep were _____ than the rocks at 2 feet deep.
Choices:
older
younger
Answer: A
Background: A: The more carbon atoms there are, the greater the number of possible arrangements of carbon atoms.

Question: If Mona is manipulating carbon atoms in her science lab and she increases the number of carbon atoms she has to work with, what happens to the number of possible arrangements the carbon atoms can take?
Choices:
increase
decrease
Answer: A
Background: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.

Question: If Milo increases the frequency on his shortwave radio, it does what to the amount of energy the radio is producing?
Choices:
increases
decreases
Answer: A
Background: In bigger atoms, valence electrons are farther from the nucleus.

Question: If Mona is measuring atoms and she finds out that one atom is smaller then another, what does that imply about the distance of electrons from the nucleus of that atom?
Choices:
closer together
farther away
Answer: A
Background: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.

Question: When Shane goes swimming in warmer water, he can move about slowly, whereas in cooler water, Shane's movement is
Choices:
faster
slower
Answer: A
Background: Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.

Question: A fossil in the highest layer of rock would be _____ than one lower down.
Choices:
younger
older
Answer: A
Background: The water table is higher when there is a lot of rain and lower when the weather is dry.

Question: If there is less rain, the amount of water in the water table is _____ .
Choices:
less
more
Answer: A
Background: Increased resource use generally means more waste; electronic waste from developed nations is a growing problem in the developing world.

Question: If Milo makes an effort to use more resources in his day to day life, what will happen to the amount of waste he produces?
Choices:
increase
decrease
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 decreases the strength of his muscles, his endurance becomes
Choices:
greater
smaller
Answer: B
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: Living things with poor traits should produce _____ offspring than living things with better traits.
Choices:
more
less
Answer: B
Background: Water near shore generally has more dissolved nutrients than water farther from shore.

Question: Chris is studying Lake Michigan. He takes soil samples from the Lake in two places. The first sample he takes from right near the shore. The second sample is taken from the middle of the lake. The _____ sample will have lesser dissolved nutrients in it.
Choices:
first
second
Answer: B
Background: As more resistors are added in series, the total resistance of the circuit increases.

Question: If Mona is building a circuit and she adds more resistors in series, what happens to the total resistance of the circuit?
Choices:
increases
decreases
Answer: A
Background: The more current, the stronger the electromagnet.

Question: When you send more power to a magnet it becomes
Choices:
weaker
stronger
Answer: B
Background: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.

Question: Amy is from the USA, where she used lots of fossil fuels. Andy is from a poor country where there are few fossil fuels to be used. The person who's country will contribute more to air pollution is
Choices:
Amy's
Andy's
Answer: A
Background: Breast cancer is rare in teens. It becomes more common as women get older.

Question: When people get younger what happens to their risk of cancer?
Choices:
decreases
increases
Answer: A
Background: Nations that have more industry produce more hazardous waste.

Question: The United states has more industry than South Korea. Therefore, there is more hazardous waste in _____.
Choices:
South Korea
the United States
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 more energy resources?
Choices:
China
America
Answer: B
Background: The greater the mass of the objects, the stronger the gravitational pull between them.

Question: The sun is able to hold in all the planets because it is
Choices:
more massive
less massive
Answer: A
Background: The more mass a moving object has or the faster its moving, the greater its momentum.

Question: A small object will have _____ momentum than a large object.
Choices:
more
less
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 stops working, causing the temperature to fall, what happens to the speed of the soundwaves her radio is generating?
Choices:
increases
decreases
Answer: B
Background: Larger alkenes have lower boiling and melting points, so they are liquids or waxy solids at room temperature.

Question: Sarah leaves coconut oil on the counter during the night when it is cool, and it is a solid. During the day, the coconut oil is a liquid, so the night is
Choices:
cooler
warmer
Answer: A
Background: With higher frequencies, the microwaves also have more energy.

Question: Lonnie decreased the frequency of some microwaves he was working with. The resulting microwaves now contain _____ energy.
Choices:
less
more
Answer: A
Background: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.

Question: When it gets hot out what happens to our blood flow?
Choices:
decreases
increases
Answer: B
Background: Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.

Question: Peter found a cool rock very deep below the surface of some dirt. He knew the rock was _____.
Choices:
older
younger
Answer: A
Background: The more tightly packed the particles inside the material are, the more dense we say they are.

Question: If Jim packs a fewer amount of packing peanuts into a jar, what happens to the density of the peanuts?
Choices:
increases
decreases
Answer: B
Background: As more resistors are added in parallel, the total current strength increases.

Question: Mike wants the current strength to be stronger, so mike will do this with the number of resistors
Choices:
decrease
increase
Answer: B
Background: The harder the batter hits the ball, the greater will be its acceleration.

Question: Eric hit a ball as hard as he could. The next time, he hits it way less hard. The ball accelerates _____ the second time.
Choices:
more
less
Answer: B
Background: An object has greater momentum if it has greater mass, greater velocity, or both.

Question: A larger boulder will roll down a hill _____ than a smaller one.
Choices:
faster
slower
Answer: A
Background: Better farming techniques and machines increased the food supply and the distribution of food.

Question: Jeff noticed the food supply changed over time in his city. The advent of farming machines likely caused the food supply to
Choices:
decrease
increase
Answer: B
Background: Increasing air temperature decreases atmospheric pressure.

Question: As the pressure in the atmosphere falls, the air temperature gets
Choices:
warmer
cooler or
Answer: A
Background: The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.

Question: A rock has more mass than a pebble. Which object will exhibit a smaller force of attraction?
Choices:
rock
pebble
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 far from Earth by Earth?
Choices:
high
low
Answer: B
Background: The more branching there is in isomers, the lower the boiling and melting points are.

Question: Eric removed branching isomers from one solution, and left the other solution alone. The removed isomer solution now has a _____ boiling point.
Choices:
lower
higher
Answer: B
Background: We also saw that adding resistors to a series circuit increases the total resistance of the circuit, causing the current to decrease.

Question: Mike wants his circuits to be able to have a higher resistance, so that the current decreases. In order to do this, he will consider his resistors and
Choices:
increase them
decrease them
Answer: A
Background: Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.

Question: If Mona is running a race and her chest expands, what happens to the amount of air pressure in her lungs?
Choices:
increases
decreases
Answer: B
Background: The more cylinders a car engine has, the more powerful its engine can be.

Question: Tommy traded in his four-cylinder Pinto for an eight-cylinder Mustang. The Mustang engine was
Choices:
more powerful
less powerful.
Answer: A
Background: The closer objects are to each other, the stronger the gravitational force between them.

Question: If we bring two large magnets next to each other they will have _____ force than two small magnets.
Choices:
more
less
Answer: A
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: A stream in a state with a lower average elevation will have to do _____ cutting to reach base level that in a state with a higher average elevation.
Choices:
more
less
Answer: B
Background: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.

Question: If Milo has just performed a hard workout and his body temperature decreases, what happens to the size of his blood vessels?
Choices:
decrease
increase
Answer: A
Background: Better farming techniques and machines increased the food supply and the distribution of food.

Question: Jonah's family was barely getting any food when they plowed the field by hand, but when they got less machines to help, the food supply
Choices:
decreased
increased
Answer: A
Background: During inhalation, because the chest volume is larger, the air pressure inside the lungs is lower than the air pressure outside.

Question: If Mona is breathing hard and her volume increases, what happens to the air pressure inside her lungs?
Choices:
increases
decreases
Answer: B
Background: The darker the urine, the less water it contains.

Question: Joe's urine was almost clear; its water content was probably
Choices:
high
low
Answer: A
Background: As greenhouse gases increase, changes will be more extreme.

Question: If the people in Mary's country start to create more greenhouse gases, what will happen to the possibility that changes may occur?
Choices:
increase
decrease
Answer: A
Background: The upper rock layers are much younger.

Question: The archaeologist was digging and saw that the oldest rocks were in layers that were
Choices:
shallower
deeper
Answer: B
Background: Therefore, water nearer shore usually contains more dissolved nutrients than water farther from shore.

Question: As we go closer to shore, we normally will encounter _____ dissolved nutrients.
Choices:
more
less
Answer: A
Background: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.

Question: When humans tear down trees what happens to the population of the animals in the tree?
Choices:
Lower
Increase
Answer: A
Background: Longer length resistors will offer more resistance than shorter resistors.

Question: If Mona is building some resistors and she makes them shorter, what happens to the resistance of them?
Choices:
decreases
increases
Answer: A
Background: Water near shore generally has more dissolved nutrients than water farther from shore.

Question: If Jim samples water that is close to the shore and water that is far from the shore, which sample will contain less nutrients?
Choices:
water far from shore
water near shore
Answer: A
Background: A fluid exerts pressure in all directions, but the pressure is greater at greater depth.

Question: When you dive into the shallow ocean pressure
Choices:
decreases
increases
Answer: A
Background: The more acidic a solution is, the closer its pH value will be to 0

Question: If Mona is making lemonade and she increases the acidity of it by adding more lemons, what happens to its closeness to pH 0?
Choices:
increases
decreases
Answer: A
Background: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.

Question: What will happen to Jim's muscle strength if he exercises less than he has in the past?
Choices:
his muscles will become stronger
his muscles will become weaker
Answer: B
Background: Gluons make quarks attract each other more strongly the farther apart the quarks get.

Question: Because of gluons, quarks are attracted each _____ strongly the farther apart they are.
Choices:
more
less
Answer: A
Background: A fluid exerts pressure in all directions, but the pressure is greater at greater depth.

Question: Milo loves to dive deep into the ocean. Does he experience less pressure diving at 10 meters or at 100 meters?
Choices:
10 meters
100 meters
Answer: A
Background: Smaller sediments are dropped as the slope becomes less steep.

Question: If Milo wants to encourage smaller pieces of sediment to drop on his lawn, what should he do to the slope of his lawn?
Choices:
increase it
decrease it
Answer: B
Background: The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.

Question: Paul started at the base of a mountain and climbed to its peak. The sky was clear and the sun was beating down on him all day. However, he noticed there was a clear temperature difference between the surface's temperature and the temperature at the top of the mountain peak. Where would he feel less heat?
Choices:
Surface
Mountain Peak
Answer: B
Background: In the mesosphere, temperature decreases as altitude increases.

Question: Going higher in the mesosphere, we encounter _____ temperatures.
Choices:
higher
lower
Answer: B
Background: In general, the farther away from the Sun, the greater the distance from one planets orbit to the next.

Question: The distance between the sixth and seventh planets from the sun should be _____ than the distance between the first and second planets.
Choices:
more
less
Answer: A
Background: Water also gets colder as you go deeper.

Question: Milo is swimming in the pool at the shallow end. Suddenly he decides to move to the deep end. What happens to the water as he swims shallower?
Choices:
gets warmer
gets colder
Answer: A
Background: The closer together the particles in a longitudinal wave are, the greater the amplitude.

Question: As Kyle examines how longitudinal waves work, he notes that these particular waves have a small amount of amplitude. Kyle now knows that it means that the particles of these particular longitudinal waves are
Choices:
closer together
farther apart
Answer: B
Background: The smaller its mass is, the greater its acceleration for a given amount of force.

Question: What happens to a heavy car when it has the same power as a light car?
Choices:
accelerates faster
accelerates slower
Answer: B
Background: The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together.

Question: Dan wanted to flick Carlos hard with a rubber band. To flick him the softest, Dan needs to move his hands
Choices:
closer
further away
Answer: A
Background: The faster, longer, and farther the wind blows, the bigger the waves are.

Question: Tina is drinking water. Tina blows faster and faster on the surface of the water. The faster she blows, the _____ the waves are.
Choices:
smaller
bigger
Answer: B
Background: In the larger container we will still have the same number of gas particles, but now they are filling a much larger space.

Question: If Mona is comparing two containers and she knows her jelly jar is larger then her baby food jar, which one contains more space?
Choices:
jelly jar
baby food jar
Answer: A
Background: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.

Question: Will increases 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: A
Background: The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows. The greater each of these factors is, the bigger a wave will be.

Question: Michel watched the slow waves hit shore with power. The waves were _____.
Choices:
big
small
Answer: B
Background: The pupil automatically gets bigger or smaller to let more or less light in as needed.

Question: When it is night time the pupils in our eyes are _____ open than normal.
Choices:
more
less
Answer: A
Background: The hotter a resistor becomes the more resistance it has.

Question: Max notices that the resistor is getting cooler. He is concerned that the resistor will offer
Choices:
less resistance.
more resistance
Answer: A
Background: If blood volume in the body decreases, blood pressure decreases.

Question: If Milo cuts himself shaving and loses a lot of blood, what happens to his blood pressure?
Choices:
increases
decreases
Answer: B
Background: The closer to the surface an aquifer is, the easier it is to get the water.

Question: If Jean's aquifer has sunk from the surface of the pool then the water is how easy to get into?
Choices:
harder
easier
Answer: A
Background: If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.

Question: Tony drives an SUV that contributes many greenhouse gases to the atmosphere. Evan rides a scooter that contributes few greenhouses gases to the atmosphere. Who likely contributes less to the Earth heating up?
Choices:
Tony
Evan
Answer: B
Background: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.

Question: Ian wants to produce less pollutants, so he buys a car that is a plug-in hybrid. The car will run on electricity better if it's plugged in for a
Choices:
longer time
shorter time
Answer: A
Background: During inhalation, because the chest volume is larger, the air pressure inside the lungs is lower than the air pressure outside.

Question: Compared to a balloon that has the size of a fist a balloon the size of a head will have
Choices:
more pressure
less pressure
Answer: B
Background: Therefore, water nearer shore usually contains more dissolved nutrients than water farther from shore.

Question: Water furthest away from shore will have _____ dissolved nutrients than water near shore.
Choices:
more
less
Answer: B
Background: The more dense the medium, the slower the light moves.

Question: John was looking at the lights passing through the object. He noticed that the less dense the medium, the light would move
Choices:
Faster
Slower
Answer: A
Background: The voice becomes deeper as the larynx in the throat grows larger.

Question: A person that has a large larynx will have what type of voice?
Choices:
High
low
Answer: B
Background: Less massive objects also have less gravity than more massive objects.

Question: The least massive objects have _____ gravity than more massive objects.
Choices:
higher
lower
Answer: B
Background: The smaller its mass is, the greater its acceleration for a given amount of force.

Question: A large amount of force has _____ acceleration than a smaller amount of force
Choices:
more
less
Answer: B
Background: Waves with shorter wavelengths have more energy.

Question: If Jimbo increases the wavelength of the soundwave he is generating, what will happen to the energy carried by that soundwave?
Choices:
increases
decreases
Answer: B