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Pollution Diffusion
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Learners design their own experiment to investigate how pollution diffuses through ground material.
Wet Pennies
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Learners initially test to see how many drops of liquid (water, rubbing alcohol, and vegetable oil) can fit on a penny.
Production of a Gas: Controlling a Chemical Reaction
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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.