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Weather Vocab
Science
| Term | Definition |
|---|---|
| Thermal Energy | The sum of the kinetic energy and the potential energy of the particles that make up the object |
| Energy | The capacity or power needed to do work |
| Convection | Movement in a gas or liquid in which warmer parts move up and the cooler parts move down |
| Jet Stream | A fast ,narrow current flowing from west to east that encircles the globe |
| Coriolis Effect | The Effect that causes circulating air to be deflected to the right and left of the northern and southern hemisphere |
| Global Winds | The five major wind zones, including polar easterlies, westerlies, horse latitudes, trade winds, and the doldrums |
| Trade Winds | A wind blowing steadily towards the equator from boh atmospheres |
| Westerlies | A wind blowing from the west |
| Polar Easterlies | Dry and cold prevailing winds that blow from the east |
| Doldrums | The belt around the Earth near the equator |
| Horse Latitudes | A belt of calm air and sea occurring in both the northern and southern hemispheres between the trade winds and the westerlies. |
| Local Wind Patterns | Winds that blow over a limited area. |
| Sea Breeze | A breeze blowing toward the land from the sea |
| Land Breeze | A breeze blowing toward the sea from the land |
| Atmosphere | A mixture of gasses the souround the earth |
| Troposphere | The lowest region of the atmosphere |
| Stratosphere | The region of the atmosphere above the troposphere. |
| Mesosphere | The region of the earth's atmosphere above the stratosphere and below the thermosphere. |
| Thermosphere | The region of the atmosphere above the mesosphere. |
| Exosphere | The outermost region of a planet's atmosphere. |
| Oxygen | A colorless, odorless reactive gas that supports life |
| Nitrogen | A colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere. |
| Argon | An inert gaseous element of the noble gas group. |
| Trace Gases | A trace gas makes up less than 1% by volume of a planet's atmosphere. |
| Water Vapor | Water in a vaporous form especially when below boiling temperature and diffused. |
| Air Pressure | The force exerted on a surface by the air above it as gravity pulls it to Earth. |
| Mercury Barometer | An instrument used for measuring the change in atmospheric pressure. |
| Aneroid Barometer | A sealed metal chamber that expands and contracts, depending on the atmospheric pressure around it. |
| Low Pressure | A condition of the atmosphere in which the pressure is below average. |
| High Pressure | A condition of the atmosphere in which the pressure is above average. |
| Water Cycle | The continuous movement of water within the Earth and atmosphere. |
| Evaporate | To turn from liquid into vapor. |
| Condensation | The conversion of a vapor or gas to a liquid. |
| Runoff | The draining away of water from the surface of an area of land. |
| Meteorologist | An expert in meteorology. |
| Cirrus | The act of a cloud forming wispy mare's tails at a high altitude. |
| Stratus | A cloud forming a continuous horizontal gray sheet. |
| Nimbus | A big gray rain cloud. |
| Cumulus | A cloud forming rounded masses heaped on each other close to the surface. |
| Air mass | A body of air with horizontally repetitive temperature, humidity, and pressure. |
| Weather | The way the atmosphere is acting in a certain area at a certain time. |
| Climate | A region with consistent and dominate weather conditions. |
| Forcast | A prediction of what the weather may look like in the future. |
| Temperature | The measure of the intensity of heat present in a substance or object. |
| Front | A boundary separating two different types of air. |
| Humidity | The amount of water vapor in the air. |
| High Pressure System | Has more air pressure than their surroundings. |
| Low Pressure System | Has lower pressure at its center than the areas around it. |
| Storms | Strong winds accompanied by precipitation and often thunder and lightning as well. |
| Precipitation | Any liquid or frozen water that forms in the atmosphere and falls back to the earth. |
| Tornado | A rotating column of air touching the ground, usually attached to the base of a thunderstorm. |
| Thunderstorm | A rain cloud that also produces lightning. |
| Hurricane | a tropical storm with winds that have reached a constant speed above 74 miles per hour. |
| Flood | An overflow of water onto land that should be dry. |
| Winter storm | A combination of heavy snow, blowing snow and/or dangerous wind chills. |
| Cumulonimbus Clouds | Clouds that can cause extreme weather such as heavy torrential downpours, hail storms, lightning and even tornadoes. |
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