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In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

In this activity, learners explore how engineering has developed various means to remove impurities from water.

This is an activity about rockets. Learners will explore how rockets leave Earth's orbit and what it takes to make a launch successful.

In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.