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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

In this activity, learners will explore how light can refract or break apart into different colors.

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

Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

In this hands-on activity, learners will become familiar with the special adaptations of rainforest plants and discover the conditions needed for tropical trees to survive along with what can impinge