Formation of Images
Light, Sound and Waves

Clumsy Catching

Enrichment Activity for 5-11 11-14

What you need

  • A cone shaped party hat
  • Scissors
  • A soft ball
  • A friend


  1. Cut the tip off the party hat to make a hole about 2cm in diameter
  2. Wear the hat over your face
  3. Try to play catch with your friend using a soft ball

Results and Explanation

When you’re wearing the hat you can only see with one eye at a time. Without your normal, two-eyed, binocular vision you can’t judge distances as well and it’s much harder to catch the ball.

These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.

Formation of Images
can be represented by Ray Diagrams
is used in analyses relating to Lens
has the special case Real Image Virtual Image
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