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Comparing Sizes of Microorganisms
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In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete
Build a Bridge
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In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.

Airplane Wing Investigation
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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.
Soaring Towers: Building with Recycled Materials
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In this activity, learners will build the highest tower they can out of recycled materials.

Three Little Pigs
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.
Building Houses: Build a Cardboard Tube House
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Build a house you can fit inside, using cardboard tubes.

Sand Castle Saturation
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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

Rocket Wind Tunnel
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In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

The Parachuting Egg
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In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.