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In this activity, learners observe tide pool animals in a touch tank to consider how they survive.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

This is a guide for facilitating interaction at a touch tank with marine animals. The instructions are for setting up a display in an informal science center, but could work anywhere.

In some parts of the world, lakes freeze during winter. In this activity learners will explore water’s unique properties of freezing and melting, and how these relate to density and temperature.

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

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.