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weather1club
weather unit 1
| Question | Answer |
|---|---|
| anything that takes up space and has mass | matter |
| activity in the atmosphere above us | weather |
| scientific study of the atmosphere and weather | meeorology |
| average weather trends over a long period of time | climate |
| made up of proton, neutrons, and electrons | atoms |
| approx. 109 of these & everything is made of | elements |
| 2 or more atoms - same or different | molecules |
| solid, liquid and gas | 3 states of matter |
| homogenous mixture of gases taht consists of 78% nitrogen and 21 % oxygen | homosphere |
| gas layer above homosphere | heterosphere |
| lowest layer in atmosphere, where all weather takes place | troposphere |
| device used to measure atmospheric pressure | barometer |
| layer of air that begins above troposphere, includes ozone layer | stratosphere |
| winds that travel in patterns in stratosphere going 300 mph | jet stream |
| contains 3 atoms of oxygen bonded together, shields earth form harmful uv light | ozone layer |
| coldest layer in atmosphere | mesosphere |
| uppermost layer...very hot | thermosphere |
| air explands when heated and contracts when cooled | charles law |
| force with which the weight of the air presses down on Earth | atmospheric pressure |
| masses of warm air bobbing over the ground | low pressure zones |
| heavier, colder air hunkering down on earth's surface | high pressure zone |
| happens when warm rising air mixes with cool lowering air | wind |