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In this activity, learners use simple materials to create giant bubbles.

In this outdoor art/environmental activity, learners create designs that will attract attention to animals and plants in particular habitats, and then test whether their designs attracted the "right"

In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.

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 activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!

Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.