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Earth Science-Nate
| Term | Definition |
|---|---|
| Air Pressure | The weight of air pressing down on the Earth. |
| Altitude | Height above sea level. |
| Atmosphere | Blanket of gases surrounding a planet. |
| Composition | The parts that make up a system. |
| Density | The number of molecules in the same amount of space. (mass per unit of volume) d=m/v |
| Ozone | A gas made up of three oxygen molecules. |
| Ozone Layer | A layer of O-3 in the atmosphere. In the upper atmosphere, it absorbs ultra-violet rays, thereby preventing them from reaching the Earths surface |
| Properties | Features that describe and define an object. |
| Temperature | a measure of the warmth or coldness of an object or substance with reference |
| Exosphere | The fifth layer of the atmosphere extending into space |
| Mesosphere | Called the "Middle Atmosphere" it is the coldest layer of the atmosphere |
| Stratosphere | This layer is where the jets fly , also where ozone layer is found and it is drier |
| Thermosphere | The temperatures are very hot in this layer because the temperatures increase with the altitude |
| Throposphere | Layer of the atmosphere closest to Earth where weather occurs and planes fly |
| Deposition | The process of water vapor changing from gas directly into a solid |
| Dew Point | The temperature at which water vapor will start to condense into liquid water |
| Evaporation | The process of a liquid changing to a gas |
| Fog | Clouds that form at the surface of the Earth |