Context:
The Living Body
Optical Illusions
Topic:
Our sense of sight
© CorelDraw
Access 2 Science LO1
Our eyes (and our brains) can be tricked. Follow the instructions. Have fun!
What do these signs say?
Read them aloud quickly.
Have another look.
Draw an arrow like this on a piece of paper.
© CorelDraw
Get a beaker of water.
Put the piece of paper behind the glass.
Stand a little way away with your eyes level with the arrow.
Which way is the arrow pointing?
Draw it in this box.
Find your blind spot.
Lay this sheet flat on the bench.
Cover your left eye and lower your head slowly to the page. Keep looking at the cross
with your right eye.
What happens to the triangle? What happens to the circle? What has happened
now to the triangle?