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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

In this activity, learners make scale models of the Sun and Earth out of paper mache.

In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed.

In this activity, learners explore the engineering behind seismographs and how technology has improved accurate recording of earthquakes.

Water treatment on a large scale enables the supply of clean drinking water to communities.