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Bready Bubble Balloon
Source Institutions
Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.
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Ball Bounce Experiment
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In this activity, learners investigate the properties of different types of balls.
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Funny Putty
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In this chemistry activity (page 1 of PDF SciGirls Activity: Milk Carton Boat), learners will create a blob of stretchable funny putty out of a water, borax, and glue mixture.
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Pinball Wizard
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In this hands-on engineering project, kids use two simple machines, levers and inclined planes, to construct their own pinball machines.
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Divers
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Learners experiment with a 2-liter plastic bottle containing water and four “divers." The divers consist of open, transparent containers with the opening points downward.
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Hovercraft
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In this activity, learners make plates levitate! Learners build "hovercrafts" using simple materials to explore friction and motion.
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How Can Gravity Make Something Go Up?
Source Institutions
In this activity, learners use cheap, thin plastic garbage bags to quickly build a solar hot air balloon. In doing so, learners will explore why hot air rises.
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Design a Microexpression Zoetrope
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In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.
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Launch It
Add to list DetailsIn this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target.
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Electric Paddle Boat
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In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.
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Make Maracas
Source Institutions
Make a rattle-like musical instrument! Shake it, hit it, spin it any way you want to!
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Basketball
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In this math activity (Page 14 of the Play Ball! PDF), learners play a game of "basketball" and analyze the results of the game.
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Creepy Crawlers
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Trick your family and friends with this creepy crawler that moves up and down. In this activity, learners construct a circuit and motor device that will move a homemade spider in a spooky way.
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Super Spinner
Source Institutions
In this activity (page 1 of PDF under SciGirls Activity: Pet Handedness), learners will construct a simple spinning top out of a circle of construction paper, a film canister lid, and a bamboo skewer.
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Bubble Tray
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In this activity, learners use simple materials to create giant bubbles.
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Sled Kite
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In this activity, learners build a sled kite that models a type of airfoil called a parawing.
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Descartes' Diver
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In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle.
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Screaming Balloon
Source Institutions
In this quick activity (page 1 of the PDF under SciGirls Activity: Extreme Sounds) about sound vibrations, learners will investigate which small objects, such as coins, hex nuts, or marbles, produce t
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Engineering Parachutes
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In this activity, learners will become an engineer by designing and engineering a miniature parachute.
What's the Difference?
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In this sorting activity, learners play a game in which they try to identify the largest number of differences between two objects.