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6th Unit 5a
Weather and Climate Key Terms Set A
| Term | Definition |
|---|---|
| atmosphere | Mixture of gases that surrounds Earth. |
| air pressure | The weight of air pressing down on an area. |
| troposphere | The bottom layer of the Earth's atmosphere. |
| stratosphere | The layer of the atmosphere in which ozone is present. |
| mesosphere | The layer of atmosphere where air is thin and most meteors burn up. |
| thermosphere | The outer most layer of the atmosphere. |
| radiation | The direct transfer of energy by electromagnetic waves. |
| conduction | The transfer of thermal energy that results from the collision of particles. |
| thermal energy | The total energy of motion in the molecules of a substance. |
| convection | The transfer of thermal energy through liquids and gases. |
| global warming | Is the rise in the average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. |
| greenhouse effect | The process by which gases hold heat in the air. |
| temperature | The average amount of energy of motion of each molecule of a substance; a measure to determine a substances level of hot or cold. |
| global winds | Winds that blow steadily from specific directions over long distances. |
| local winds | Winds that blow over short distances. |
| heat | The transfer of thermal energy. |