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Learners create hard water by mixing Epsom salt and water. Then they compare what happens when soap solution is mixed with hard water and regular water.

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

Learners add different liquids (water, salt water, alcohol, and detergent solution) to water and observe the different ways the different liquids combine with water.

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

This three-part activity consists of an activity that groups of learners develop themselves, a given procedure, and an optional demonstration.

Learners design their own experiment to determine which M&M color dissolves the fastest in water.

Learners design their own experiment to investigate whether the temperature of the surrounding water affects the rate at which the colored coating dissolves from an M&M.

Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

In this physics activity, learners experiment with the attractive and repulsive power of magnets.

Learners observe and record what happens when they manipulate bottles containing a liquid (water or corn syrup) and one or more objects (screw, nail, paper clip).

In this activity, learners combine two substances (plaster of Paris and water) to make a cast of an object's imprint in clay.

In this fun hands-on activity, learners whip up a batch of cyber-dough (play dough) using math for measurements.