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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan

In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

In this activity, learners construct a device that allows them to look over ledges or around corners.

In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.

Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

In this outdoor mapping activity, learners explore where plants grow and map plant-distribution patterns.