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Showing results 661 to 680 of 996
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Two Ears are Better Than One: Sound Localization
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This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.
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Shrinking Spot
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In this activity, learners control the (apparent) size of a hole with their brain.
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Condensation
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In this activity, learners explore the process of condensation.
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Exploring Size: Memory Game
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In this activity, learners play a card game that explores different size scales--macro, micro and nano.
Send Secret Messages
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In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.
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Exploring Symbiosis
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In this activity, learners discover which plants and animals have symbiotic relationships and how this impacts each organism.
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Make Your Own Deep-Sea Vent
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.
Let's Go Ice Fishing
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In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
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Super Shrinkers
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In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.
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Simple Pop-Up Mechanisms
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In this activity, learners construct three quick and simple mechanisms to start building a pop-up book. Learners fold, cut, and glue paper to make a bird beak, parallelogram, and V-fold.
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Mighty Seeds
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In this biology experiment, learners plant soybean seeds in plaster of Paris, witnessing firsthand the mighty power and ability of plants to grow in adverse conditions.
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Nature Journals
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In this activity, learners construct a home-made journal with simple, everyday materials.
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Building a Magic Carpet
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In this activity (page 89 of the PDF), learners compare and contrast pitch and roll motions by using a Magic Carpet maze similar to one that was used for Neurolab investigations about microgravity.
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Waterbottle Membranophone
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In this activity, you'll use a straw, a water bottle and a paper tube to make an instrument that's very much like a saxophone.
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The Size and Distance of the Planets
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In this activity, learners investigate the concepts of relative size and distance by creating a basic model of the solar system.
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Raising the Level of Carbon Dioxide in Your Blood
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In this activity (on page 146 of the PDF), learners will explore the effects of increased carbon dioxide in the bloodstream.
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Take an Egg for a Spin
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This is an activity about friction as well as kinetic and potential energy.
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Balancing Stick
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In this quick and simple activity, learners explore how the distribution of the mass of an object determines the position of its center of gravity, its angular momentum, and your ability to balance it
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Breathing Machine
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In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.
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Hot Stuff!: Creating and Testing for Carbon Dioxide
In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.