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Up, Up and Away with Bottles
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In this activity, learners make water rockets to explore Newton's Third Law of Motion. Learners make the rockets out of plastic bottles and use a bicycle pump to pump them with air.

Human-powered Orrery
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In this space science activity, learners work together to create a human-powered orrery to model the movements of the four inner planets.

Double Dutch Distractions
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This activity (page 2 of the PDF under SciGirls Activity: Double Dutch) is a full inquiry investigation into whether hearing or seeing has a bigger effect on jump rope performance.

Hopper Circus
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In this outdoor activity and/or field trip, learners investigate the behavior of hopping animals.

Heart and Lungs
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In this environmental health activity, learners investigate their breathing and pulse rates, and learn how these measurements are affected by physical activity.

Scavenger Hunt
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An outdoor scavenger hunt helps learners consider the theme of "What Is Life?" Learners explore what living organisms are, including how organisms meet basic needs of food, shelter and water to surviv

Water Striders
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In this outdoor activity/field trip, learners catch and observe water striders to explore their movement and feeding behaviors.

Altered Reality
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

Stethoscope
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Make a copy of the first stethoscope with only a cardboard tube! René Laennec invented the first stethoscope in 1819 using an actual paper tube!

Variation Game
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In this set of outdoor games, learners play the role of monkeys that are trying to get enough resources (food, shelter, and space) to survive.

Space Stations: Beans in Space
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In this activity, learners perform 20 arm curls with cans that simulate the weight of beans on Earth versus the weights of the same number of beans on the Moon and in space.

Tracking Otters
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This activity (on pages 38-43) has learners simulate the way scientists track and map the movement of otters in the wild using radio trackers.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.

Go with the Flow
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In this activity, learners discover how hard their hearts work to pump blood.

Tug-of-War
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This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies.

Rover Races
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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

Kites
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In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

Water Drop Races
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In this activity, learners will explore the physics of liquids and gas by playing with both! Learners of any age use their own breath to move drops of water across a smooth wax paper surface.

Make Your Own Magnus Glider
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Build a glider that uses the same physics as a curve ball, for less than a dime.

Mid-Air Maneuver: Skateboard Science
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To understand how skaters turn in midair, try this little experiment! Individuals can do this activity alone, but it works better with a partner.