This contraption demonstrates what physicists call the Bernoulli effect, which also explains how the wings of airplanes provide lift. But kids will just call the hovering ball amazing.
If you are looking for a fun and concentrated project for kids in the older set, this 3-D textured globe is the perfect craft. While this project is geared mostly at kids 9 and up, it can be simplified for younger children as well.
Experience the optic phenomenon of the camera obscura (Latin for "dark chamber") with this homemade viewer that turns everything you look at topsy-turvy.
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