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Tuesday, March 22, 2011

Reflect, Absorb or Transmit

This week the Year 3 students have been finding out that light can do 3 things when it hits an object.

  • Reflect - the light bounces back off the object.
  • Absorb - the light is blocked by the object and there is a shadow behind it.
  • Transmit - the light can shine through the object.
We held lots of different objects up in front of the strong projector light to see what the light would do.

We loved seeing the CD and mirror reflect the light to the back of the room.

These are our results:

We found out that if an object is shiny it will reflect light. If you can see through an object then light will be transmitted through. And if an object is thick and dull it will absorb the light and block it.

When then had a go at investigating with mirrors and torches to see if we could reflect the light. This was so much fun.


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