Science4- test 5
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31 terms
Terms | Definitions |
|---|---|
 Three Fourths | this much of the earth is covered in water |
| Matter | is anything that takes up space and has weight |
| Molecules | are the smallest piece of a substance that still has the qualities of that substance |
| Hydrogen and Oxygen | this is what water is made of |
| Solids | molecules packed in THIS are packed CLOSE together |
| Gases | molecules in THIS are the FASTEST moving molecules |
| Gas | has no shape of its own and does not fill up a fixed amount of space |
| Surface Tension | the property of water that allows things to float in it |
| 32° F | water changes to ice at this temperature |
| Heat | causes molecules to move more rapidly |
| Energy | is the ability to do work |
| Force | a push or pull on an object |
| Gravity | the force which draws things down toward the center of the earth |
| Heat | supplies the energy in steam |
| Nitrogen | the gas that makes up most of the air |
| Atmosphere | extends 1,000 miles |
| Air Pressure | the weight of the atmosphere creates THIS |
| Evaporation | the process by which liquid water becomes water vapor |
| Condensation | the process of changing water vapor back to liquid water |
| Nimbus | a rain or storm cloud |
| Precipitation | any form of water that falls from the clouds to the earth |
| Humidity | the amount of water vapor in the air |
| Snow | frozen water vapor formed in the air |
| Dew Point | the temperature which water condenses |
| Air Mass | a large body of air which has the same temperature and humidity |
| 212° F | the temperature at which water boils |
| Hail | frozen raindrops that have been blown back into the cloud to form more frozen layers |
| Fog | a cloud on the ground |
| Be able to explain the water cycle | Be able to explain the water cycle |
| Be able to identify these types of clouds | Cirrus, Cumulus, and Stratus Clouds |
| Be able to identify these birds | California Gull and Common Loon |
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