Year 3 Science Semester 1

Which of the following is NOT a heat source?

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What is Earth's main heat source?

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Which shows the use of heat?

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Which shows the use of heat?

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Without the sun's heat, what would happen to earth?

• aliens would invade

• the earth would explode

• it would be too cold to survive

Which is NOT a way that heat can be produced?

• electricity

• rubbing your hands together

• fire

• rain

What is a conductor?

• a material that heat moves through easily

• a material that heat does not move through easily

• a material that turns cold when heated

• a tool for measuring temperature

What is an insulator?

• a material that heat moves through easily

• a material that heat does not move through easily

• a material that turns cold when heated

• a tool for measuring temperature

Which of these is a better conductor?

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Which of these is a better insulator?

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