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Can gelatin (like Jell-O ®) change the speed of light?

In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.

This is an activity (located on page 3 of the PDF under Stained Glass Activity) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particl

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