Chapter 3 Lesson 1: Energy, Motion, and Force

1. ______ is the ability to do work or cause change.

• Energy

• Matter

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2. ______ is a kind of energy that uses electrical currents.

• Electricity

• Rain

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3. ______ is the movement of energy from warmer places and objects to cooler ones.

• Heat

• Freezing

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4. The _____ is our main source of light because light travels from the sun to the earth.

• Mars

• Sun

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5. The amount of _____ affect how well you see and how colorful objects look.

• light

• darkness

6. ______ is a form of energy that is made when an object vibrates. l

• Sound

• Heat

7. _____ means to move quickly back and forth.

• Vibrate

• Steady

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