Let's Do Science 3 – Text Book B

Page 146

The Sun is ourr main source of light.

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Light Sources and nd Uses of o Light

Amazing Fact!

Light is a form of energy that allows us to see the things around us. Any object that gives out ar light of its own ow is called a source of light. Some sources es of light, such as the Sun, lightning and fir fire are natural sources of light. Others, such as light bulbs and glow sticks are made by people – ight b are artificial sources of light. they a

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The Sun is about 150 million kilometers from Earth. The light from the Sun takes about eight minutes to reach the Earth.

What are some sources of light? ight? How are sources of light ight used by people?

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