What is Earth Science
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27 terms
Terms | Definitions |
|---|---|
 science | study of |
| 4 major sciences | chemistry, physics, life science, earth science |
| chemistry | the study of matter at the level of atoms and molecules |
| physics | the study of matter and motion |
| life science | the study of living things |
| areas of study in earth science | geology, meteorology, astronomy, oceanography |
| geology | the study of earth, its matter, and the processes that form and change the earth |
| meteorology | the study of weather and the forces and processes that cause it |
| astronomy | the study of objects in space including stars, planets, and comets |
| oceanography | the study of the earth's oceans |
| technology | the use of scientific discoveries (applied knowledge) |
| examples of how technology can cause problems | water pollution, soil, air, soil erasion, loss of job,weather pattern changes, loss of habitat for other organisms |
| theory | an explanation backed by results from repeated tests |
| law | a rule of nature that describes the behavior of something in nature |
| SI | international system of units |
| international standard of units | standard units used for measurement around the world. |
| mass | a measure of the amount of matter in an object |
| what mass is measured in | grams |
| matter | anything that takes up space and has mass |
| weight | a measure of gravitational force on a mass (mass x gravity = weight) |
| gravity | an attractive force that exists between all objects |
| area | the amount of surface included within a set of boundaries |
| volume | a measure of how much space an object occupies |
| density | a measure of the amount of matter that occupies a particular space. |
| formula of density | mass divided by volume |
| temperature | the measure of how hot or cold something is. It is measured with a thermometer |
| Kelvin | absolute zero = the coldest temperature when molecules quit moving; ice melts at 273 degrees, boiling at 373 degrees |
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