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How do you measure a bubble when it's floating? You can't really, but in this activity, learners can measure the diameter of the ring of suds a bubble leaves on a flat surface.

In this math activity, learners trace their hands and estimate the number of beans that can fit into their hand tracings. Then, learners glue the beans to the tracing to test out their estimations.

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

Straws and pipe cleaners are terrific materials for building models of pyramids and cubes.

In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.

In this activity, learners will build the highest tower they can out of recycled materials.