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In this activity (on page 2 of the PDF under GPS: Sailboat Design Activity), learners will discover how the shape of an object, not just its weight, determines whether it floats or sinks.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be; different

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

In this activity (on page 2 of the PDF under GPS: Luge Activity), learners will construct a model hovercraft out of an empty spool and a piece of cardboard.

In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this activity, learners build an old-fashioned paddle boat out of simple materials.

In this activity, learners explore the concept of how brakes can stop or slow mechanical motion.

In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.

This activity (located on page 3 of the PDF under GPS: Balloon Fiesta Activity) is a full inquiry investigation into Bernoulli’s principle and airplane wings.

In this activity, learners experience some of the challenges of "tele-operating" a robotic vehicle on another planet when they design and execute a series of commands to guide a human "rover" through

In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air.

In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases.

In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.

This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.