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Science Vocabulary
Weather Conditions
| Question | Answer |
|---|---|
| The layer of air that surrounds our planet | atmosphere |
| Particles of air pressing down on the Earth's surface | air pressure |
| The layer of atmosphere closest to Earth | troposphere |
| The layer of atmosphere that contains ozone and is located above the troposphere | stratosphere |
| The warming of Earth caused by the atmosphere trapping thermal energy from the sun | greenhouse effect |
| A huge body of air which all has similar temperature and moisture | air mass |
| The border where two air masses meet | front |
| Wispy, high-altitude clouds that are made up of ice crystals | cirrus |
| Puffy cotton-ball clouds that begin to form when water droplets condense at middle altitudes | cumulus |
| Towering, dark rain clouds with a nimbus, or halo, of gray-white | cumulonimbus |
| Dark gray clouds that form a low layer and sometimes bring light rain or snow showers | stratus |
| An instrument that measures air pressure | barometer |
| The amount of water vapor in the air | humidity |
| A tool to measure moisture in the air | hygrometer |