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Gumdrop Chains and Shrinky Necklaces
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In this activity, learners thread gumdrops together to make a model of a polymer.
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Cook Up a Comet
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In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.
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Make a DNA Model
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In this activity, learners make a 3-D model of DNA using paper and toothpicks. While constructing this model, learners will explore the composition and structure of DNA.
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DNA Jewelry Models
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In this activity, learners construct a model of DNA to better understand the structure of DNA and protein synthesis.
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Raceways
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In this activity, learners build a model roller coaster to help the Mummy entertain the Atom's Family monsters. Learners assemble the roller coaster between two chairs using vinyl ceiling molding.
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Mighty Molecules
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In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules.
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Clay Beams and Columns
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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.
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Wingin' It
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Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.
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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.
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Modeling the Night Sky
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In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.
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Column Chromatography
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In this activity, learners separate the components of Gatorade using a home-made affinity column.
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To Topo Two
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In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).
Leaves: Designing Leaf Arrangements on a Branch
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In this hands-on activity, learners investigate the functional design of leaves on a tree.
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Marble Run!
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This activity (on page 2 of the PDF under SciGirls Activity: Luge) is a full inquiry-based challenge related to motion and design optimization.
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Nosedive
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This is a great activity for investigating the basics of lift and drag as they pertain to flight. Learners will discover how to avoid "taking a nosedive" by building their own paper airplane.
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Bridge the Gap
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Learners work in groups to construct bridges using stale marshmallows and toothpicks.
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Reason for the Seasons
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In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two days, with the second day occurring two or three months after the first.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-675.jpg?itok=gt3CzHb-)
Draggin' Boats
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.
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.
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Tiny Geyser Models
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In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.