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

In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink?

Many people get water from a source deep underground, called groundwater.

This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.

No glue is needed for learners of any age to become marshmallow architects or engineers.

In this activity, learners build water-propelled engines from soft drink cans.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.

In this activity, learners explore in what ways the shape of the land and the pull of gravity influence how water moves over Earth.

In this activity, learners create a biosphere in a baggie.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.