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Java Games: Flashcards, matching, concentration, and word search. |
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| atmosphere | layer of gases around Earth |
| air pressure | weight of air as it presses down |
| greenhouse effect | heat from sun builds up and is trapped |
| nitrogen | 78% of atmosphere |
| oxygen | 21% of atmosphere |
| other gases | 1% of atmosphere |
| water vapor | water in the form of gas |
| evaporation | liquid to gas |
| condensation | gas to liquid |
| precipitation | water that falls from the clouds |
| water cycle | movement of water into air and back to earth |
| weather | atmosphere conditions at a certain place and time |
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Harrisburg Middle School |
| Harrisburg, SD |
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