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This activity is about collecting and analyzing DNA as part of a criminal investigation.

In this activity, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil — producing the liquid form of water familiar to us as rain and dew.

In this weather forecasting activity, learners use common materials to construct a rain gauge and measure daily, monthly, and yearly rainfall.

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