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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

In this activity, learners explore the possibilities of clay as a natural material.

This hands-on astronomy activity allows you to create a “cutaway” telescope to clearly show how reflector and refractor telescopes work.

In this activity, learners will turn an ordinary tray of sand into a desk-top garden for meditation.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.