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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV).

In this activity, learners build a sled kite that models a type of airfoil called a parawing.

In this online Flash game, learners will captain a sailing challenge, adjusting boat direction and sails, seeking the way to take greatest advantage of varying wind speeds and directions to catch the

On an airplane trip, learners have an opportunity to investigate the properties of air pressure at different altitudes.

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 online Flash game, learners take to the skies in a hot air balloon and are challenged to beat other balloonists' times to the finish line without crashing.

In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.

Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you place the string.