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In this outdoor activity, learners review the parts of the synapse and their functions by playing a game.

In this outdoor activity, learners play a game of Tag to discover how neurons attach themselves to each other to form a chain.

Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.

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.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

In this activity, learners will investigate and compare the root systems of plants. Explore how weed and edible plant roots differ, and take a closer look inside with the careful use of a knife!

In this activity, learners use found natural materials to create a water haven for bees and other insects.

In this activity, learners will create a home for animal friends in their backyard using recycled materials. Some material suggestions include: pine straw and twigs.

An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

In this activity, learners model a population of deer and see how the number of deer changes over time.

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

In this activity, learners observe hard parts of sea creatures (shells, molts, etc.) to better understand marine environments.

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.