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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.

In this activity, learners explore how nanosized structures can create brilliant color.

In this activity, learners make a solar oven. Learners witness the awesome power of the sun to make a yummy treat--a chocolate chip cookie!

Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.

In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.

In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

This activity is a sensory experience that recreates the sounds of a pond at night.

In this activity, learners will see how UV light affects colors over time by making their own sunprint on construction paper.

This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

This activity uses a special paper that can create images with exposure to the Sun. Collect objects of different shapes and sizes and use them to make interesting patterns on your sun print.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

In this activity, learners construct a traditional handicraft toy that illustrates a motion commonly associated with violins and earthquakes.

In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.