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Weather and Climate
Weather and Climate 8th grade
| Term | Definition |
|---|---|
| Air Pressure | The force of the atmosphere pushing on Earth’s surface. |
| High Pressure | An area of sinking, dense air that usually brings clear and stable weather. |
| Low Pressure | An area of rising, less-dense air that often leads to clouds, rain, or storms. |
| Cold Front | A boundary where a cold air mass pushes under a warm air mass, bringing storms and cooler weather. |
| Warm Front | A boundary where a warm air mass moves over a cold air mass, producing clouds and steady precipitation. |
| Isobar | A line on a weather map that connects places with the same air pressure. |
| Weather Map | A map showing air pressure, fronts, temperatures, and wind patterns used to predict weather. |
| Tropical Cyclone | A large, rotating storm with a low-pressure center that forms over warm ocean water. |
| Tropical Storm | A developing system with strong winds and organized circulation that can grow into a tropical cyclone. |
| Storm Surge | A rise in sea level pushed onto land by the strong winds of a tropical cyclone. |
| Solar Energy | Energy produced by the Sun that drives weather patterns and ocean movement. |
| Radiation | Energy from the Sun that travels as electromagnetic waves and warms Earth’s surface and atmosphere. |
| Thermal Energy | Heat energy absorbed by land, air, and water that affects temperature and weather. |
| Convection | The movement of air or water caused by warm, less-dense material rising and cool, denser material sinking. |
| Convection Currents | Continuous, circular patterns of moving air or water created by convection. |
| Hydrosphere | All the water on Earth, including oceans, lakes, rivers, groundwater, ice, and water vapor. |
| Atmosphere | The layers of gases surrounding Earth where weather and climate processes occur. |
| Global Winds | Large-scale wind patterns around Earth caused by uneven heating and rotation. |
| Coriolis Effect | The apparent curving of moving air and water due to Earth’s rotation. |
| Jet Stream | A fast, narrow band of winds in the upper atmosphere that steers weather systems. |