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The Pulse of Gravity
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  In this astronomy activity (page 3 of the PDF), learners will examine the effects of gravity on a person’s pulse and explore how gravity can differ from planet to planet.
  
What Causes Pressure?
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  In this kinesthetic activity that demonstrates pressure, learners act as air molecules in a "container" as defined by a rope.
  
Sky Floater Challenge
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  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.