This experiment helps you to understand how your eyes form images. The images are turned into signals which are sent to the brain. You will need tissue paper, sticky tape, a piece of card, some scissors, a magnifying glass and a goldfish bowl full of water.
1) Tape the tissue paper to one side of the goldfish bowl.
2) Fold the card in half and cut out something that looks like half a figure. Unfold the paper.
3) Now stick the magnifying glass to the table and place the goldfish bowl next to it. Have the tissue paper side facing away from the magnifying glass.
4) Fix the cardboard cut out to the table in front of the magnifying glass. Now shine the torch through the cardboard cut out. An upsidedown (inverted) image of the figure will appear on the tissue paper.
The magnifying glass acts as the lens of the eye. The light from the cut-out figure forms an image on the tissue. The goldfish bowl acts as the eyeball. The tissue on the goldfish bowl is like the retina of the eye. The retina sends signals to the brain which makes you see the object.
