Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
physciencemidterm1-7
vocabulery module 1-7 apologia physical science
| Question | Answer |
|---|---|
| Atom | The smallest stable unit of matter in creation |
| Molecule | Two or more atoms linked together to make a substance with unique properties |
| Concentration | The quantity of a substance within a certain volume of space |
| Absolute humidity | The mass of water vapor contained in a certain volume of air |
| Greenhouse effect | The process by which certain gases (principally water, carbon dioxide, and methane) trap hear that would otherwise escape the earth and radiate into space |
| Humidity | The moisture content of the air |
| 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 |
| Relative humidity | A quantity expressing humidity as a percentage of the maximum absolute humidity for that particular temperature |
| Atmosphere | The mass of air surrounding a planet |
| Atmospheric pressure | The pressure exerted by the atmosphere on all objects within it |
| Barometer | An instrument used to measure atmospheric pressure |
| Exosphere | The region of the atmosphere above an altitude of 460 kilometers |
| Heat | Energy that is being transferred |
| Heterosphere | The upper layer of earth's atmosphere, which exists higher that 80 kilometers (50 miles) above sea level |
| Homosphere | The lower layer of earth's atmosphere, which exists from ground level to roughly 80 kilometers (50 miles) above sea level ( |
| Ionosphere | The region of the atmosphere between the altitudes of 65 kilometers and 330 kilometers where the gases are ionized |
| Jet stream | A narrow band of high-speed winds that circle the earth, blowing from west to east |
| Mesosphere | The region of the atmosphere that spans altitudes of 48 kilometers to 80 kilometers (50 miles) |
| Stratosphere | The region of the atmosphere that spans altitudes of 11 kilometers to 48 kilometers (30 miles) |
| Temperature | A measure of the energy of motion in a substance's molecules |
| Thermosphere | The region of the atmosphere between altitudes of 80 kilometers and 460 kilometers |
| Troposphere | The region of the atmosphere that extends from ground level t roughly 11 kilometers (7 miles) above sea level ( |
| Cohesion | The phenomenon that occurs when individual molecules are so strongly attracted to each other that they tend to stay together, even when exposed to tension |
| Electrolysis | Using electricity to break a molecule down into its constituent elements |
| Hard water | Water that has certain dissolved ions in it, predominately calcium ions ( |
| Polar molecule | A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared |
| Solute | A substance that is dissolved in a solvent |
| Solvent | A liquid substance capable of dissolving other substances |
| Adiabatic cooling | The cooling of a gas that happens when the gas expands |
| Condensation | The process by which water vapor turns into liquid water |
| Percolation | The process by which water passes from above the water table to below it |
| Residence time | The average time a given molecule of water will stay in a given water source |
| Transpiration | Emission of water vapor from plants |
| Epicenter | The point on the surface of the earth directly above an earthquake's focus |
| Fault | The boundary between a section of moving rock and a section of stationary rock |
| Plastic rock | Rock that behaves like something between a liquid and a solid |
| Sedimentary rock | Rock formed when heat, pressure, and chemical reactions cement sediments together |
| Air mass | A large body of air with relatively uniform pressure, temperature, and humidity |
| Aphelion | The point at which the earth is farthest from the sun |
| Coriolis effect | The way in which the rotation of the earth bends the path of winds, sea currents, and objects that fly through different latitudes |
| Perihelion | The point at which the earth is closest to the the sun |
| Weather front | A boundary between two air masses |
| Hydrosphere | The sum of all the water on the planet |
| Hydrologic Cycle | The process by which water is exchanged between the earth's various water sources |
| Precipitation | Water falling from the atmosphere as rain, sleet, snow, or hail |
Created by:
shplatzer
Popular Physical Science sets