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

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

"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?

In this activity on page 15 of the PDF, learners measure the amount of bubbles that they make using a detergent.

In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.