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ch.2 weather terms
key terms for weather
| Term | Definition |
|---|---|
| electromagnetic waves | A form of energy made from space |
| radiation | The direct transfer of energy by electromagnet waves. |
| Infrared Radiation | A form of energy with wavelengths that are no loner than red light |
| Ultraviolet radiation | Sunburns are caused by a type of radiation which can causes skin cancer, and eye damage.et |
| Scattering | Reflection of light in all directions. |
| Greenhouse Radiation | The process by which gasses hold heat in the air. |
| Thermal Energy | The total energy of motion in the molecules of a substance. |
| Temperature | The average amount of energy of motion of each molecule of a substance. That means the temperature is a measure of how hot or cold a substance is. |
| Thermometer | A thin glass tube with a bulb on one end that contains a liquid. |
| Heat | The energy transferred from a hotter object to a cooler object. It is transferred in three ways, radiation, conduction, and convection. |
| Conduction | The direct transfer of heat from one substance to another substance that it is touching. |
| Convection | The transfer of heat by the movement of fluid. |
| Wind | The horizontal movement of air from an area of lower pressure. All winds are caused by differences in air pressure. |
| Anemometer | A measurement of wind speed. |
| Wind chill factor | The increased cooling that wind can cause. |
| Local winds | winds that blow over short distances. Local winds are caused by unequal heating of Earth's surface within a small area. |
| Sea breese | A wind that blows from an ocean or lake onto land. |
| Land Breese | The flow of air from land to a body of water. |
| Monosoons | Sea and Land breezes that change direction with the seasons. |
| Global Winds | Winds that blow steadily from specific directions over long distances. |
| Coriolis effect | The way earth's rotation makes wind curve. |
| Major Global wind belts | Trade winds, the prevailing westerlies, and the polar easterlies. |
| Latitude | The distance from the equator that is measured in degrees. |
| Jet Streams | About 10 kilometers above earth's surface are bands of high speed winds. |
| Evaporation | The process by which water molecules in liquid water escape in the air as water vapor. |
| Humitity | The measure of the amount of water vapor in the air. |
| Realative Humidity | The percentage of water vapor in the air. |
| condensation | The process by which molecules of water vapor in the air become a liquid. |
| Dew Point | The temperature at which condensation starts. |
| Cloud Classification | cumulus, stratus, and cirrus. |
| Cumulus | Clouds that look fluffy rounded balls of cotton . The word means "heap or mass". |
| Stratus | Cuds that are formed in flat layers. It means spreading out cover most of the sky. As they thicken, they may produce drizzle, rain, or snow. |
| Cirrus | Wispy ,feathery clouds form at high levels where temperatures are low. These clouds are mostly made of ice crystals. |
| Precipatation | Any form of water that falls from clouds and reaches Earth's surface. |
| Common types of precipatation | Rain, sleet, freezing rain,and snow. |
| Rain gauge | An open end tube or can that collects rainfall. |
Created by:
katherine.boyea
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