Make a Keyhole Spy Glass

Third Grade Science Activities: Make a Keyhole Spy Glass

What You Need:

  • Clear glass marble
  • Black construction paper
  • Clear tape
  • Ruler
  • Scissors
  • Pencil

What You Do:

  1. Have your child measure and cut a piece of black construction paper approximately 4” x 10.”
  2. At one end of the strip have your child place the marble in the centre of the paper and roll the paper as tight as possible.
  3. Using a pencil, poke the marble to one end of the roll until it slightly protrudes from the paper as shown. Secure this end with a piece of tape around the paper.
  4. Place the marble end of the spy tool against a keyhole or small space and look through the other area. Ask your child what he sees!

Try the keyhole spy tool in several different spaces and see what works best!

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