Man made and natural source of heat and light

Identify the natural sources of light

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Which one of these is the most important source of light on earth?

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Which of these is a source of light?

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Some of these items do NOT produce light.

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We cannot see if there is no ....

• heat

• light

• sound

Select the things that give out heat

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Which of these do NOT use heat?

• cooking food

• baking a cake

• bouncing a ball

• having a hot shower

Which shows the use of heat?

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What gives out sound?

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The heat from the ... helps us to dry our clothes.