Place a curved elbow joint pipe over each end of the pipe to make a periscope shape. Have the two openings point in opposite directions if you want to look around corners or over obstacles. Find two mirrors that fit the pipe. These mirrors must be small enough to insert each one into one end of the pipe.

The definition of a periscope is a set of lenses, mirrors or prisms on a tube allowing the viewer to see objected reflected on the other end. An example of a periscope is the viewing tool used on a submarine.

A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. This activity is part of the Optics Educator Guide.

To make a simple telescope at home, you will need the following: two magnifying glasses – perhaps 1 – 1.5 inches (2.5-3 cm) diameter (it works best if one is larger than the other) a cardboard tube – paper towel roll or gift-wrapping paper roll (it helps if it is long) duct tape.

What You Do:

1. Give each student two paper rolls and have them glue them together on the sides.
2. Help students put a hole in each side of the binoculars.
3. Tie the ribbon/yarn through the holes.
4. Optional: decorate the binoculars with paint or glue and paper.

35+ Brilliant Ideas To Upcycle Old Toilet Paper Rolls

• Make a Butterfly Sanctuary. Love butterflies?
• Organize Your Cords. Wrap up cords in a toilet paper roll to keep them neat and organized.
• Bird Feeder.
• Organize Your Yarn.
• Make Fun “Gift Poppers”
• Decorative art mirror.
• Kiddie Party Crowns.
• Nature-inspired Pencil Holder.

1. Step 1: Draw Out the Shape of Your Goggles.
2. Step 2: Cut the Shapes Out.
3. Step 3: Create the Goggle Lenses.
4. Step 4: Glue the Lenses on Your Goggles.
5. Step 5: Glue the Paper Over Your Goggles.
6. Step 6: Cut Small Slits for String.
7. Step 7: Slip the String Through the Holes.
8. Step 8: Color Your Cool Goggles.