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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

In this activity, learners will explore the water cycle by creating a small atmosphere.

In this activity, learners explore how salt water freezes in comparison to fresh water.

In this outdoor activity/field trip, learners explore an aquatic site such as a pond, lake, stream, river or seashore to find and investigate plants and animals that live in water.

In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

In this activity, learners discover if carbon dioxide has an effect on temperature.