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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.

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

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, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced.

In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.