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In this activity, learners work in pairs to measure each other's ankles with lengths of string.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).