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In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

The goal of this activity is to design, build and test a house or toy for an animal.

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 demonstration, learners explore a variation of a Foucault pendulum, but upside down.

In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).

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

This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

In this activity, learners will exercise their imaginations and artistic skills. Appropriate for all ages, learners will create unique pieces to jumpstart storytelling sessions.

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.