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In this water activity, learners discover ways to move water across the water table.

In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

In this activity, learners model ancient lunar impacts using water balloons.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this activity, learners observe tide pool animals in a touch tank to consider how they survive.

In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.