2nd Yr Science Periscope competition

Well done to Oisin, Stephen and Adam on designing and making some excellent periscopes.

JC Science - Light: How does a Crooke's Radiometer work?

Junior Cert Science - Light

Junior Science - Fish Bones on Light

Here are some fish bone diagrams on Light from out first year science class.

Junior Science - Light

To prove that light travels in straight lines
Method:
Place a hole in the centre of three cards
Place cards in a straight line
Shine light through the 1st card and look through the last card.
Move the middle card to the side and observe
Results:
Light is only visible when the 3 cards are in a straight line.