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Showing results 1 to 14 of 14
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Better Hair Through Chemistry
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In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity.
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A Cubic Foot Per Second
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In this activity, learners measure and calculate the amount of cubic feet various containers contain. Next, learners investigate cubic feet per second (cps), by carrying jugs in one second.
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How Big is Small
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In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.
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Shake Table
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This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor.
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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).
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Indicating Electrolysis
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In this activity, learners build a simple electrolysis device. Then learners use an indicating solution to visualize hydrogen and oxygen molecules in water.
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Make Your Own Telescope
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Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.
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Inverted Bottles
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In this activity, learners investigate convection by using food coloring and water of different temperatures.
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Atmosphere Composition Model
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In this activity, learners create a model using metric measuring tapes and atmosphere composition data.
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Portable Potable Pressure
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.
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Mass of the Earth
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In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.
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Seasons and Shadows: Investigate How Shadows Shift Throughout the Year
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In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer?
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The Crayon Rock Cycle
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In this activity, learners use crayons to draw conclusions about rocks and the rock cycle.