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EYES IN THE BACK OF YOUR HEAD

Make your own homemade periscope

Suitable For

Grade 7

Difficulty

3

Time Required

 <2 Days

Supervision

Advised

What’s it about?

The most common example of the use of a ‘periscope’ is in submarines. The commanders of submarines use the periscope to look above the surface of the sea level while they are still submersed below the surface of the water. In the following science experiment you will build your own homemade periscope to look over high walls or even around corners!

Topics covered

Periscope, Submarine

What will I need?

  • MIRRORS (CUT)
  • CARDBOARD BOXES
  • STICKY TAPE
  • SCISSORS
  • PROTRACTOR

Procedure (Method)

Unfortunately, this section is only available in the e-book version of the project.

How does it work?

Unfortunately, this section is only available in the e-book version of the project.

A periscope works because of the mirror high up reflecting the light down to the other mirror which is at eye level, which in turn reflects the light (image) into you eyes. This will only work properly if this mirrors is it exactly 45 degrees. (See the diagram in the e-book version…)

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