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In this activity, learners will investigate the part of soil. Explore how clay, silt, and sand make up the dirt in your background. Activity includes step-by-step instructions and extension ideas.

In this math activity, learners observe and sketch cracking patterns in pavement.

In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

In this water activity, learners discover ways to move water across the water table.

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