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All you need to know about... LIGHT The Sources of Light Moon Stars Sun is not a light source Candle Flame Electric Light Light has Three Important Properties Light has Three Important properties: 1. Light travels in straight lines from a light source to your eyes.

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Presentation Transcript
slide2

The Sources of Light

Moon

Stars

Sun

is not a light source

Candle Flame

Electric Light

slide3

Light has Three Important Properties

Light has Three Important properties:

1. Light travels in straight lines from a light source to your eyes.

2. If something is in the way you get a shadow.

3. Light travels very fast.

300,000,000 metres every second.

slide4

Now how shadowsare formed

Shadows are formed when an object is blocking light.

Light can not travel through wood, metal, stone and loads of other objects.

slide5

How do we see?

Most people think that light comes from your eyes…

Light may come directly from the source to your eyes- like when you look at a candle

This line is light

You couldn’t be so wrong!

Remember that light comes from a light source, not our eyes!

slide6

Mirrors help us see over walls

Tom is pretending to do homework… but really he is watching the football. Thanks to mirrors!