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By making models of light waves with paper, learners can understand why different colors appear in bubbles.

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

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.

This is an activity about turbidity, or the amount of sediment suspended in water.