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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions.

In this activity, learners will explore how light can refract or break apart into different colors.

Learners use simple materials to construct a model the Big Dipper. Learners hang the model from a doorway or ceiling and look up at it to see the constellation as seen from Earth.

In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for thei

Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.

In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

This is a classic exercise for visualizing the scale of the Solar System.

This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

In this activity, learners are challenged to design, build and test a birdhouse that will stay cool in the sun.