Energy Resources

Omar says that a flower uses energy as it grows. Jacob says the flower does not use energy. Which statement explains which of the two friends is correct?

• Omar is correct because the flower transfers energy to the ground.

• Omar is correct because any change in the flower requires energy.

• Jacob is correct because changes such as growing do not require energy.

• Jacob is correct because more energy is lost by the flower than is gained.

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How do our bodies get energy from the sun?

• We eat plants that contain energy stored from the sun during photosynthesis.

• We absorb light energy from the sun and convert it into energy we can use during photosynthesis.

• Heat energy from the sun warms our bodies to release stored energy from within our cells.

• Heat energy from the sun is used to cook the foods we eat.

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Which statement correctly describes the energy of items in a home?

• A computer uses electrical energy and nuclear energy.

• An electric fan uses mechanical energy and sound energy.

• An electric toaster uses radiant energy and chemical energy.

• A clothes dryer uses nuclear energy and mechanical energy.

Energy is the ability to do work. Which of the following is considered energy?

• air

• car

• water

• electricity

Which definition of electricity is NOT correct?

• Electricity is a form of energy that can do work.

• Electricity is a form of energy that can make something move.

• Electricity is a form of energy that flows from positive to negative.

• Electricity is a form of energy made up of protons, neutrons, and electrons.

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Which kind of energy is NOT produced by the sun?

• heat energy

• light energy

• nuclear energy

• mechanical energy

How is oil different than hydroelectric power?

• Oil can be replaced while hydroelectric power is limited.

• Oil is considered a renewable resource; hydroelectric power is not.

• Oil is renewable but hydroelectric power is nonrenewable.

• Oil resources are limited but hydroelectric resources are practically unlimited.

What advantage does wind and solar have over coal and oil?

• Wind and solar are not renewable; coal and oil are.

• Wind and solar are easier to use.

• Wind and solar are renewable; coal and oil are not.

• Wind and solar produce byproducts; coal and oil do not.

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Which of the following pairs of materials are good natural resources for providing energy?

• gravel and oil

• trees and carbon dioxide

• the ocean and soil

• wind and natural gas

What originates from the sun and is passed from plants to animals in food chains?

• water

• minerals

• energy

• oxygen

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