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Below the Surface: Surface Tension II
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In this activity learners explore surface tension. Why are certain objects able to float on the surface of water and how do detergents break the surface tension of water?
Oh Buoy!
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Learners work in pairs to design, construct, and test a device that exhibits positive, neutral, and negative buoyancy. They test a number of different objects in water to see if they sink or float.
Be A Pasta Food Scientist
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In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.
Walk On Water Bugs
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In this activity (on pages 29-35), learners examine water pollution and filtration.
Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.
Moving On Up: Capillary Action II
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Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.