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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?
Inverted Bottles
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In this activity, learners investigate convection by using food coloring and water of different temperatures.
Density Intensity
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In this activity on page 12 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners examine how recyclable materials are separated by various properties at recycling centers.
Build A Hydrometer
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.