One plastic bear, three paper tunnels, two mirrors, one mat, and you have a periscope. When you look down a corner, you can't really see around it. With a periscope, you can. This is how it works. 1: Fold three pieces of paper into 3 tunnels and put them in a Z shape. 2: Put a bear on either end of the tunnel. 3: Put mirrors on the open corners of the tunnel position the mirrors in the right angles and now you can see the bear. It was interesting to see the bear.
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