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Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod

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

Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months.

In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.

In this activity (on pages 36-39), learners make a model of a watershed out of paper, then run water down the mountain to simulate how rainfall and pollution affect watersheds.

In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

Learners create a model of a wetland to observe how it absorbs and filters water from the environment.

In this activity, learners will discover why there are holes in bread.

In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a

In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.

In this multi-part activity learners examine non-point water pollution.

In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this activity, learners will test soil content using their sample, some water and a container that seals.