https://www.khanacademy.org/science/telangana-class-7-science/x71e9264c5e9276b1:reflection-of-light/x71e9264c5e9276b1:9-10-make-your-own-kaleidoscope/e/making-a-kaleidoscope 2026-06-15T08:00:40.713114978Z Making a Kaleidoscope Exercise on how a kaleidoscope is made and how it works. Shauryan Rana exercise