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Understanding Air Pressure and Temperature Dynamics

Learn about air pressure and temperature changes in the atmosphere and how they affect our daily activities like plane flights and balloon experiments.

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Understanding Air Pressure and Temperature Dynamics

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  1. Read: p14 in “Jason Project” book Define: air pressure Warm Up:

  2. Air Pressure • Gravity is the force that keeps our atmosphere from drifting off into space. • Gravity is closest to the ground. • Air is densest at the ground and gets less dense as you go up. • Denser air exerts more air pressure.

  3. ear drum Air Pressure Air Pressure and your Body • Plane taking off • Plane landing ear drum Air Pressure

  4. Temperature • As a substance is heated, its particles move more quickly. • As the particles move more quickly, they bounce off each other. • Substances EXPAND as they heat up. • When volume increases, density decreases.

  5. Temperature and Density AIR IS HEATED. AIR COOLS Air’s density increases. Air pressure decreases. The balloon falls. Air’s density decreases. Air pressure increases. The balloon rises.

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