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Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

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

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

Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water.

In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

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

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.