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Dunk and Flip
Learners complete two simple experiments to prove the existence of air and air pressure which surround us. First, they push an inverted cup into water; the air in the cup prevents water from entering. Then, they try to flip up a meter stick covered by paper; the air above the paper pushes down and prevents the stick from moving easily. These can also be used as demonstrations. When learners set up a free account at Kinetic City, they can answer...
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