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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

This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.

In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.