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Modeling Limits to Cell Size
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This investigation provides learners with a hands-on activity that simulates the changing relationship of surface areas-to-volume for a growing cell.
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Space Stations: Bones of Contention
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In this activity, learners make models representing bones on Earth and bones that have been in space. They discover what happens to bones without proper exercise and nutrition.
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Dry Ice Comet
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In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails.
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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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Gel Electrophoresis
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In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.
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Make a Model Caldera
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In this quick activity (page 2 of PDF under GPS: Lava Flow Activity), learners will model how large depressions near the top of a volcano are formed by using an inflating and deflating balloon submerg
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Deep Sea Diver
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In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.
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Do Cities Affect the Weather?
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In this activity, learners explore clouds and how they form.
Finding the Right Crater
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This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.
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Hot Air Balloon
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In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.
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Hand Spin Helicopter
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In this activity, learners build helicopters and launchers using wooden dowels and scrap paper. Use this activity to explore rotational motion and kinetic and potential energy.
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As Straight as a Pole
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In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base.
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Biodomes Engineering Design Project
In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems.
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Rooftop Gardens
How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.
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Understanding Albedo
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In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper
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Transit Tracks
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In this space science activity, learners explore transits and the conditions when a transit may be seen.
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Evolution in Plane Sight
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In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.
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Plankton Feeding
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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.
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Shake and Make: Charge Recognition
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In this activity (page 10), learners explore how molecules self-assemble according to forces of attraction and repulsion.
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Wind Tube
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In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.