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Showing results 1101 to 1120 of 2169
Feel the Heat
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In this design challenge activity, learners design and build a solar hot water heater. Their goal is to create a heater that yields the highest temperature change.
That's the Way the Ball Bounces: Level 2
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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.
What is Energy?
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In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another.
Modeling Tidal Action
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In this activity (Lesson 1), learners work in groups to create tide simulations.
Three Colors of Light
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Have fun with additive mixing! Observe what happens when the three primary colors of light--red, green and blue--are mixed together, resulting in white light.
Pollinator Play
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In this activity, learners will build a bee hotel for pollinators. Learners will explore building and ecology through this activity.
Magnetic Lines of Force
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With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.
T-Shirt Transformation
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In this activity, learners will repurpose an old t-shirt to create their own yarn or string.
High Rise
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In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.
Afterimage
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In this activity about vision and optical illusions, learners conduct a simple test to demonstrate how our eyes create "afterimages." Learners stare at a black cardboard bat for at least 30 seconds an
Fish Eyes: More than Meets the Eye
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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.
Going Green
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In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.
Diffusion & Osmosis with Data Analysis
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This three-part lab helps learners understand the essential principles governing diffusion and osmosis.
Many Seeds: Estimating Hidden Seeds
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In this activity, learners will estimate how many seeds are in a fruit or vegetable, then count to find out. The result: mix estimation with healthy eating.
Population Game
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In this outdoor game, learners simulate a herd of deer trying to survive in an area called the "home range." Learners explore the concept of "carrying capacity"—what size population of an organism can
Taste Match Game
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In this activity (3rd activity on the page), learners taste test different foods and categorize them as sweet, bitter, sour, or salty. Learners compare their results with the group.
Stem Cell Differentiation Game
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This game uses a modified Uno deck to review concepts related to stem cell research and diabetes.
Cylinders and Scale
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In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.
Disappearing Crystals
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Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.
Shower Estimation
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In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.