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

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 how engineers work to solve the challenges of a society, such as delivering safe drinking water.

Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.

In this activity (page 1 of the PDF under SciGirls Activity: Water Slides), learners will whip up some suds with a cup of water and a tablespoon of dish soap until the bubbles are stiff enough to star

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

In this activity, learners explore how civil engineers solved the challenge of moving water via irrigation.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

April showers bring May flowers, but what do coastal storms bring?

In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

In this activity, learners explore the function and engineering of dams and how dams have many uses and solve many problems in the world.

In this activity, learners explore how engineers develop pipeline systems to transport oil, water, gas, and other materials over very long distances.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.

Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.