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In this activity, learners explore the different salinities of various sources of water by taste-testing.

In this activity, learners explore clouds and how they form.

In this activity related to climate change and data analysis, learners examine temperature and precipitation data to determine if climate variations are due to El Niño.

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