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Weather & Climate
| Term | Definition |
|---|---|
| tide | the rising and falling of the ocean's water level due to the pull of gravity of the moon |
| hemisphere | a half of the Earth |
| weather | the condition of the atmosphere in a certain place at a certain time |
| climate | general weather of an area over a long period of time |
| atmosphere | a pocket of air surrounding Earth |
| air mass | large "bubble" of air |
| air pressure | the weight of air pressing on everything around it |
| barometer | tool for measuring air pressure |
| humidity | water vapor in the air |
| front | where one air mass pushes aside another air mass |