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Learn about how animals use echolocation with Team GCM Educator, Rebecca.


  • Aluminum foil pie tin
  • 2 paper towel roll tubes
  • 1 ruler
  • Tape

Activity Directions:

  1. Tape the tubes about 2 inches apart, turning them in slightly to each other.
  2. About 12 inches from the tubes, set your foil pie tin upright in front of the tubes
  3. Ask a grownup for help. Have them speak quietly into one tube while you listen closely in the other

Team GCM Creators: Madai + Rebecca