Apologia's Exploring Creation with Physical Science Modules 1 & 2
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8 terms
Terms | Definitions |
|---|---|
 Atom | The smallest stable unit of matter in Creation. |
| Molecule | A group of two or more atoms linked together to form a unique substance. |
| Concentration | The quantity of a substance within a certain volume of space. |
| Humidity | The moisture content in the air. |
| Absolute Humidity | The mass of water vapor contained in a certain volume of air. |
| Relative Humidity | A quantity expressing humidity as a percentage of the maximum absolute humidity for that particular temperature. |
| Greenhouse Effect | The process by which certain gases (principally water vapor, carbon dioxide, and methane) trap heat that would otherwise escape the earth and radiate into space. |
| Parts Per Million | The number of molecules (or atoms) of a substance in a mixture for every one million molecules (or atoms) in that mixture. |
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