Light comes from a source
Sun
electric light
candle
fire
stars
glow worm
fire fly stars
Things that are not sources of light
moon
planets
mirrors
shiny objects
Light has 3 important properties
1. Light travels in straight lines from a source to our eyes
2. If something is in the way then a shadow is formed
3 Light travels very fast - 186,000 miler per second
How do we see objects that aren't sources of light ?
When light touches an object some things happen -
- black surfaces absorb light
- very shiny surfaces reflect light
- other surfaces scatter light
Labels for your diagram
- Light travels from the light source in all directions
- Some light touches an object
- Light is scattered from the object in all directions
- Some light is scattered into our eyes - we see the object
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