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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

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

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 activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.