Amplify Science

What is an engineer?

• A person who studies stars and other objects in our universe.

• A person who uses science knowledge to design something in order to solve a problem.

• A person who researches the physical properties and systems involved in the water on Earth.

• A person who studies the relationships between living things and their environment.

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About how much water on Earth is freshwater?

• about 97%

• about 33%

• about 5%

• about 72%

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Which of the following statements about freshwater is NOT true? Hint: Select 3 answers.

• All of the freshwater on Earth is available for humans to use.

• Most of the freshwater on Earth is available for humans to use.

• Only a small amount of freshwater on Earth is available for humans to use.

• Freshwater isn't necessary for humans to survive.

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Where is most of Earth's freshwater found?

• glaciers and groundwater

• oceans and rivers

• lakes and wetlands

• swamps and ponds

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What is the term for the spinning of the Earth on its axis?

• Revolution

• Rotation

• Orbiting

• Wobbling

What type of rock is formed from cooled lava or magma?

• Sedimentary

• Metamorphic

• Igneous

• Crystal

What is the term for the force that pulls objects toward the center of the Earth?

• Magnetism

• Gravity

• Friction

• Tension

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What is the term for the path that the Earth takes as it revolves around the Sun?

• Axis

• Orbit

• Cycle

• Rotation

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What is the primary factor that causes the phases of the moon?

• The Earth's shadow on the moon

• The moon's rotation

• The moon's orbit around the Earth

• The sun's movement across the sky

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How does Earth's rotation affect the day and night cycle?

• It causes the seasons to change.

• It changes the moon's phases.

• It leads to day when the area faces the sun and night when it faces away.

• It affects the gravitational pull of the moon.

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DOK Level 2: Skill/Concept