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Unit 1: Weather
Weather Vocab Words and Definitions
Term | Definition |
---|---|
weather | The conditions in the atmosphere at a given time includes temp, air pressure, cloud cover, precipitation, etc |
climate | the long-term average for weather in a given area, usually at least 30 years of data including temps, rainfall, humidity, etc |
water cycle | the continuous and repeating pattern-->evaporation, condensation, precipitation, that keeps water moving through the atmosphere |
evaporation | the process of a liquid changing to a gas when energy (usually heat) is added to it |
condensation | the process of gas changing into a liquid when energy (usually heat) is removed; in the watercycle, can result in the formation of clouds, fog, or dew |
precipitation | the process of liquid or solid water falling through the atmosphere |
freezing | the process of a liquid changing from a solid from the removal of energy (usually heat) |
melting | the process of a solid changing into a liquid when energy is added (usually heat) |
ground water | Areas on Earth's surface where water is stored including oceans, rivers, lakes, ponds, even puddles. |
transpiration | when trees or other plants release water (similar to perspiration in humans) |
wind | air moving from high pressure areas towards low pressure areas, can be local or occur over large areas |
Coriolis Effect | a mass, such as the Earth, experiences a force acting perpendicular to the direction of motion and to the axis rotation |
control | all of the variables that need to be kept the same (controlled) in all groups / trials / tests |
independent variable | the variable that I change |
dependent variable | the variable expected to change as a result of a change in the independent variable |
scientific method | the process of objectively establishing facts through testing and experimentation |