1. 3 mirrors(18.2 cm×3 cm, 18.2 cm×3 cm,18.2 cm×2.5 com); Cardboard; Transparent paper; Sticky tape; Colorful paper; Kaleidoscope Materials

3. Second step: bend the cardboard to form a tube that fixes the triangular prism.

4. Third step: cut the transparent paper into the shape of the paper tube and stick it as the bottom of the tube with tape. The bottom must be the transparent materials so that lights can pass into it and we can see the beautiful images

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