Warm-Up:
Examine the mercury barometer on the right.
1. Do you understand how it works?
2. If you were given some mercury, a long test tube, and a bowl, could you make one? [Unfortunately, Hg is toxic, so if you find a bunch, please don't actually try this.]
3. Why is the vacuum at the top important? What is a vacuum?
4. If this barometer were made using water instead of mercury, would the tube need to be longer or shorter?
Examine the mercury barometer on the right.
1. Do you understand how it works?
2. If you were given some mercury, a long test tube, and a bowl, could you make one? [Unfortunately, Hg is toxic, so if you find a bunch, please don't actually try this.]
3. Why is the vacuum at the top important? What is a vacuum?
4. If this barometer were made using water instead of mercury, would the tube need to be longer or shorter?
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Why can we turn a jar upside down in water and lift the water level, like this...
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What
keeps the lid on the jar?
Warm-Up:
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Do things move from areas of high pressure to areas of low pressure, or do they move from low pressure to high pressure? Can you support your answer with an example?
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Do you know how to siphon?
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Do you know how siphoning works?
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Why won't siphoning work on the moon?
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What is a "water level?"
- Bernoulli Ball
- Adiabatic Change
- Balloon Trick
- Hovercraft
- Shoot Stuff