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Unit 9 Vocab

Across
Unit of mass
The layer of gases surrounding the Earth
The sun is the center of the solar system
layer of the atmosphere
2nd layer of the atmosphere
Measure of the force of gravity on an object
1st layer of the atmosphere
Transfer of heat energy by movement of currents through liquids or gases
Down
Most abundant gas in the atmosphere
The earth is the center of the solar system
4th layer of the atmosphere
1st person to suggest the heliocentric model
3rd layer of the atmosphere
Amount of matter measured in grams
Unit of force