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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

In this activity about light and perception, learners create and observe moire patterns.

In this activity, learners imitate the way vocal cords work by building a model from a plastic cup, rubber band, and a straw.

In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.