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

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.

In this activity, learners explore how water behaves differently when it comes in contact with "nano sand" and regular sand.

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

In this activity, explore chromatography and the various colors that make up the ink in markers. Use this activity to investigate cohesion and adhesion.

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

In this activity on page 15 of the PDF, discover how materials and physical forces behave differently at the nanoscale.

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

In this activity, learners discover how a super-absorbing material can be used to move a straw.

In this activity, learners play with surprising sand that doesn’t get wet! Learners explore how water behaves differently when it comes in contact with "magic sand" and regular sand.

In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.

Visitors separate a mixture of pebbles, salt crystals, and wood shavings by adding water and pouring the mixture through a strainer.

In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

In this biology/ecology activity, learners construct a terrarium out of a tennis ball container. This terrarium is unique because it never has to be watered.

Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.

In this hands-on activity, learners use the steps of the design process to create a hook to rescue a "space capsule" from the water.

In this activity, learners conduct an experiment to help Pharaoh design a better insulated tomb.

In this activity (on pages 4-5), learners make fake snow by adding water to the super-absorbant chemical from diapers, sodium polyacrylate.

Visitors mix urea with water in one flask and mix calcium chloride with water in another flask. They observe that the urea flask gets cold and the calcium chloride flask gets hot.

In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way!