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Just imagine what it would be like if it were dark all the time.
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What is light?
Light allows you to see things.
The boy can see the flowers because light bounces off them and goes into his eyes.
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Day lightDay light
It is easy to see during the day. Daylight comes from the Sun. The sun is a huge ball of fire a very long way away in space. The sun’s light is so bright we can see clearly. Sunlight can damage your eyes. Never look directly at it.
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Darkness
It is dark at night because the sun is hidden. Some light comes from the moon and the stars. When there is no light, you cannot see anything.
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Electric Light
We can make light using electricity. At night we switch on lights so that we can see. Light bulbs make a bright light. Televisions and computers use electricity to light up the screen.
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Fire Light
When something burns it makes light. Candles and matches burn slowly but quite dimly. Fireworks make light too.
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Comparing Light
Some lights are brighter than others. Click on the objects to find out how bright they are.
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Dull
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Very Bright
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Bright
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When light hits something it can bounce off this is called reflected light.
Reflected Light
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Shiny things reflect more light than dull things.
Shiny things that reflect light are more easily seen in the dark.
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Shadows
When an object blocks light, it makes a dark shadow. When the sun is out, you can see the shadow your body makes. Because light onlt travels in straight lines a shadow is the same shape as the object.
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Can you make an interesting shadow?