Question 1

4.PS4.3

Accepted Answer

Light moving through the lens bends to make the coin appear larger.

Answer

Light moving through the lens bends and changes the color of the coin.

Answer

A Light moving through the lens makes the coin grow larger.

Answer

Light moving through the lens creates a shadow on the coin.

Question 2

4.ESS1.2

Which statement best describes how shadows change throughout the day?

Accepted Answer

Shadows are longest in the early morning, get shorter, and then get longer again in the afternoon.

Answer

Shadows are longest in the early morning and shortest in the afternoon.

Answer

Shadows are shortest in the early morning and longest in the afternoon.

Answer

Shadows are shortest in the early morning, get longer, and then get shorter again in the afternoon.

Question 3

4.ESS1.1

Several million years ago, the Colorado River and the land around it were at the same level. This region is now a canyon with a narrow river running through it.

What caused the canyon’s formation?

Accepted Answer

The flowing river weathered and carved through the canyon’s rocks.

Answer

The rock layers absorbed river water over time, causing the canyon.

Answer

Layers of sediment from the river were added to the canyon’s walls.

Answer

River water evaporated over time, leaving behind the canyon.

Question 4

4.ESS3.2

Fracking is a way to mine for fossil fuels. The process shoots liquid into rocks buried deep in the ground. This makes the rocks crack to release oil and gas.

Which problem could this form of mining create?

Accepted Answer

Oil and gas can leak into surrounding groundwater.

Answer

Bees and butterflies can be harmed by radio waves.

Answer

Flying birds can be hit and killed by the moving oil and gas.

Answer

Surface soil can be washed away by water more easily.

Question 5

4.LS2.5

Accepted Answer

icefish

Answer

seaweed

Answer

tuna

Answer

parrotfish

Question 6

4.ETS2.3

Which changes will increase the benefits of cars by decreasing possible risks to passengers or the environment?

Accepted Answer

Add additional airbags to locations where injuries often happen.

Answer

Change the seat coverings from cloth to plastic.

Answer

Paint the cars a different color.

Answer

Change the shape of the blinker lights to signal turning.

Question 7

4.ETS2.3

Which changes will increase the benefits of cars by decreasing possible risks to passengers or the environment?

Accepted Answer

Change the cars so that they do not need fossil fuels to run.

Answer

Paint the cars a different color.

Answer

Change the shape of the blinker lights to signal turning.

Answer

Change the seat coverings from cloth to plastic.

Question 8

4.LS4.1

Fossilized leaves are found in the desert by a construction crew. Scientists determine the leaves are from a tree that grew in heavily forested areas 150 million years ago. The fossilized leaves have some characteristics in common with present-day oak tree leaves.

What can scientists learn from this discovery?

Accepted Answer

The area where the fossilized leaves were found was once covered by a forest.

Answer

Oak trees once grew in the area where the fossilized leaves were found.

Answer

The desert air changed the leaves into fossils.

Answer

Desert plants started to grow near the fossils 150 million years ago.

Question 9

4.PS3.2

Accepted Answer

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Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/5f2dbdb56c4e14e86f1d292f71abd914b2e26f33.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/05ea7a4274143552c0a0e1ba34b950ffc90389bd.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/1b17c19e70102b3f526a428d1b90759ec200f64e.PNG

Question 10

4.ESS2.2

Accepted Answer

continent border

Answer

large river

Answer

desert

Answer

rainforest

Question 11

4.ESS2.4

Accepted Answer

The mantle is the thickest layer, while the crust is the thinnest layer.

Answer

The inner core is the thickest layer, while the crust is the thinnest layer.

Answer

The mantle is the thickest layer, while the inner core is the thinnest layer.

Answer

The crust is the thickest layer, while the inner core is the thinnest layer.

Question 12

4.PS3.3

Accepted Answer

Potential energy; increase the amount of twists in the rubber band.

Answer

Potential energy; decrease the amount of twists in the rubber band.

Answer

Kinetic energy; decrease the amount of twists in the rubber band.

Answer

Kinetic energy; increase the amount of twists in the rubber band.

Question 13

4.PS3.2

How does energy change as the boat is placed in the water and starts moving forward?

Accepted Answer

Potential energy changes to kinetic energy.

Answer

Potential energy increases.

Answer

Kinetic energy decreases.

Answer

Kinetic energy changes to potential energy.

Question 14

4.LS2.2

Accepted Answer

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Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/c4dbc0d15468da33b1a51159ee7ec8c6100c53f9.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/b0b77424bd2c9758b0d191eecb5d7fb685d77419.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/18dfe536de3a2cecceb634e99fd09d3fbc066277.PNG

Question 15

4.ESS3.1

Which statement best explains using wind as an energy resource?

Accepted Answer

Wind is a renewable resource because moving air cannot be used up.

Answer

Wind is a nonrenewable resource because it comes from the sky.

Answer

Wind is a renewable resource because it can only be used when it is windy.

Answer

Wind is a nonrenewable resource because moving air cannot be reused.

Question 16

4.ESS2.1

Accepted Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/d7c95fef36bd2c0edaa521052168c15ec68653a9.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/46002ebc5ebf4a50f04bb57b4851607510e5aa90.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/68aaa165d30ddf74f7dd0ffd70e855f36a0549ab.PNG

Answer

https://uploads.quizalize.com/6ba1a8d9-5cd4-4210-b3f9-becfe1359b69/question/9a5eace1d4f47029d2bb718eb694493799980c7f.PNG

Question 17

4.PS4.1

Accepted Answer

Wave A and wave B have the same amplitude, and wave A and wave C have the same wavelength.

Answer

Wave C has the shortest wavelength, and wave A has an amplitude larger than wave B.

Answer

Waves A, B, and C have the same size wavelength, and wave B has the smallest amplitude.

Answer

Wave B has an amplitude twice as big as wave C, and wave A has a wavelength half the length of wave C.

Question 18

4.LS2.4

In a forest, wolves prey on rabbits. Due to a forest fire, the population of rabbits decreases from 1,000 to 100.

How will the wolf population be impacted by the decrease in the rabbit population?

Accepted Answer

It will decrease.

Answer

It will remain unchanged.

Answer

It will increase.

Answer

It will go extinct.

Question 19

4.PS4.2

Three students each shine a flashlight with a different color of light, red, green, and blue, on a white screen at the same time. Which activity will cause white light to appear on the screen?

Accepted Answer

All three students shine their flashlights at the same spot on the screen.

Answer

Two students shine their flashlights through a lens held in front of the screen, while the other flashlight is aimed directly underneath the screen.

Answer

All three students hold mirrors in front of their flashlights.

Answer

One student shines the flashlight through a prism, while the other two shine their flashlights right at the screen.

Question 20

4.LS2.3

Accepted Answer

Humans eat plants and other animals, but no other animals eat humans.

Answer

Humans eat only animals.

Answer

Humans eat plant-eating animals but not animal-eating animals.

Answer

Humans eat only plants.

Question 21

4.PS4.1

Accepted Answer

The amplitude will increase.

Answer

The amplitude will decrease.

Answer

The wavelength will increase.

Answer

The wavelength will decrease.

Question 22

4.ESS2.3

Accepted Answer

Earthworms change the soil and make more nutrients available for plants.

Answer

Earthworms absorb water and other nutrients from the soil that are important for plant growth.

Answer

Earthworms release substances that are harmful to most plants.

Answer

Earthworms remove soil from the environment where plants are growing.

Question 23

4.LS2.1

Accepted Answer

Photosynthesis needs sunlight.

Answer

Photosynthesis does not need air.

Answer

Photosynthesis needs oxygen

Answer

Photosynthesis does not need water.

Question 24

4.ETS2.1

A student is making a model of a bridge using wooden sticks. The bridge should be 16 centimeters long, 12 centimeters wide, and 5 centimeters high. The bridge should have a mass of no more than 400 grams.

Which two tools will the student need to complete the model?

Accepted Answer

balance scale and ruler

Answer

balance scale and camera

Answer

ruler and stopwatch

Answer

camera and graduated cylinder

Question 25

4.LS2.4

Accepted Answer

A new species is introduced to the ecosystem that eats water fleas and is eaten by frogs.

Answer

A new species is introduced to the ecosystem that eats herons but does not eat fish.

Answer

A new species is introduced to the ecosystem that eats water plants but does not eat snails.

Answer

A new species is introduced to the ecosystem that eats water plants and is eaten by snails.

Question 26

4.PS3.1

A person drives a car at five different speeds. At which two speeds does the car have the greatest energy?

Accepted Answer

60 kilometers

78 kilometers

Answer

35 kilometers

45 kilometers

Answer

20 kilometers

35 kilometers

Answer

20 kilometers

60 kilometers

Question 27

4.ESS3.2

Accepted Answer

Work with farms on the coast to reduce the use of fertilizers.

Answer

Create a carpooling system to reduce the burning of gasoline.

Answer

Find other ways to transport materials besides ships.

Answer

Increase the use of renewable sources of energy to replace the use of oil.

Question 28

4.LS2.2

Which type of organism plays a key role in returning nutrients to the soil?

Accepted Answer

decomposer

Answer

omnivore

Answer

carnivore

Answer

producer

Question 29

4.ESS1.2

Which factor is responsible for day and night on Earth?

Accepted Answer

Earth’s rotation on its axis

Answer

Earth’s distance from the Moon

Answer

Earth’s revolution around the Sun

Answer

Earth’s distance from the Sun

Question 30

4.LS2.3

Accepted Answer

killer whales, lemon sharks, tunas

Answer

seaweed plants , lemon sharks, tunas

Answer

seaweed plants, killer whales, small fishes

Answer

seaweed plants, small fishes, tunas

Question 31

4.ESS1.1

Accepted Answer

sediments moved from the mouth of a nearby river by ocean waves

Answer

volcanic eruptions underwater increasing sediments in the water

Answer

movement of sediments due to land movement during earthquakes

Answer

large amounts of sediments carried by a hurricane

Question 32

4.PS3.1

Accepted Answer

When a fast-moving glass ball hits the metal cup, its large amount of energy creates a high volume of sound.

Answer

When the glass ball rolls slowly down a short ramp, its small amount of energy creates a high volume of sound.

Answer

When a fast-moving glass ball hits the metal cup, its large amount of energy creates a low volume of sound.

Answer

When the glass ball rolls slowly down a short ramp, its small amount of energy creates a low volume of sound.

Question 33

PS3.2

Accepted Answer

-movement of the ball from M to N

-movement of the ball from P to O

Answer

-movement of the ball from O to P

-movement of the ball from O to N

Answer

-movement of the ball from N to M

-movement of the ball from M to N

Question 34

PS3.3

Which statement correctly describes how stored energy is used?

Accepted Answer

The stored potential energy of the stretched elastic band moves the ball once the elastic band is released.

Answer

The stored kinetic energy of the released elastic band moves the slingshot.

Answer

The stored kinetic energy of the released elastic band moves the slingshot.

Answer

The stored potential energy of the stretched elastic band moves the slingshot.

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