Hooked on Science: Single Eye Catch

INGREDIENTS

• Cone Shaped Party Hat
• Styrofoam Ball

INSTRUCTIONS
STEP 1:  Using the scissors, cut the tip off the cone shaped party hat.

STEP 2:  Have a friend place the cone shaped party hat over their face, so they can see through the hole at the end of the hat.
STEP 3:  Encourage your friend to catch the Styrofoam ball. What happens? Construct an argument that humans have internal and external structures to support survival, growth, behavior, and reproduction.

EXPLANATION
The cone shaped party hat forces you to only see with one eye at a time. When this happens, you can’t properly judge distance, making it difficult to catch the Styrofoam ball. The optic nerve sends signals from the eye to the brain, which then interprets what we see. Go to www.hookedonscience.org for more experiments that might get you and your family “Hooked on Science.”