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Learners gain an intuitive knowledge of the physical aspects of watersheds by creating their own watershed models.

In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting.

In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.

In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.

This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.

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

As a group, learners consider sources of water pollution to understand where pollution starts and where it ends up.

In this activity, learners observe the hydrologic cycle in action as water evaporates and condenses to form rain right before their eyes.