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Earth Science for Kids

Weather Glossary and Terms

Anemometer - A meteorological instrument used to measure wind speed.

Barometer - A meteorological instrument used to measure the atmospheric pressure.

Blizzard - A snow storm that has winds of 35 miles per hour or more.

Climate - A pattern of weather in a region as measured over a long period of time.

Cloud - A mass of tiny water droplets floating in the atmosphere that we can see from the ground.

Cold front - A front where cold air is replacing warm air.

Coriolis effect - The effect that the Earth's rotation has on objects on Earth such as prevailing winds and ocean currents.

Depression - An area of low atmospheric pressure that is surrounded by clouds and precipitation.

Dew - Drops of water that comes from water vapor condensing on objects near the ground.

El Nino - A period of warming in the water of the Pacific Ocean near the equator.

Eye - The center of a tropical cyclone or hurricane where there is low air pressure, no clouds, and calm winds.

Flash flood - A flash flood is a flood that happens quickly (just a few hours), usually due to heavy rain.

Fog - A cloud that is low to the ground and makes it hard to see.

Front - The boundary between low and high air pressure systems.

Hail - Hail is a type of precipitation in the form of lumps of ice. It is formed in the updrafts of large thunderstorms.

High-pressure system - A region with high air pressure and cool, dry air.

Humidity - A measurement of the amount of water vapor in the air.

Hurricane - A tropical cyclone that formed in the North Atlantic Ocean.

Ice storm - An ice storm occurs when rain falls on objects and then freezes. The weight of the ice can cause damage, causing trees and power lines to fall.

Isobar - A line on a weather map that represents a given barometric pressure. All points on the line, or isobar, have the same barometric pressure.

Knot - A measure of speed most often used in the ocean. One knot equals 1.15 miles per hour.

Jet Stream - A narrow band of strong winds in the upper atmosphere.

La Nina - When the waters near the equator in the Pacific Ocean cool down.

Low-pressure system - A region with low air pressure and warm, moist air.

Meteorology - The study of the Earth's atmosphere.

Precipitation - Precipitation occurs when the condensation of water vapor causes it to fall to the Earth's surface. It can occur in many forms including rain, sleet, snow, and hail.

Prevailing winds - Winds that blow fairly consistently in the same direction over a particular area of the Earth's surface.

Rain - Precipitation that falls to the ground in the form of liquid droplets.

Snow - Frozen precipitation that falls to the ground when water vapor is turned into ice.

Squall - A sudden increase in sustained winds over a short time period.

Storm surge - A rise in the sea level at the coastline due to a huge storm such as a hurricane.

Supercell - A very large and long-lived thunderstorm.

Thunderstorm - A storm that produces thunder and lighting. It usually also generates high winds and rain.

Tornado - A rotating column of air with high wind speeds that makes contact with the ground.

Tropical cyclone - A large rotating storm with high speed winds that forms over warm waters in the ocean.

Typhoon - A tropical cyclone that formed in Southeast Asia.

Warm front - A front where warm air is replacing cold air.

Water vapor - The gas phase of water.

Wind - Wind is the movement or flow of air on a large scale.

Earth Science Subjects

Composition of the Earth
Plate Tectonics
Soil Science
The Water Cycle
Geology Glossary and Terms

Nutrient Cycles
Food Chain and Web
Carbon Cycle
Oxygen Cycle
Water Cycle
Nitrogen Cycle
Atmosphere and Weather
Dangerous Weather
Weather Forecasting
Weather Glossary and Terms

World Biomes
Biomes and Ecosystems
Tropical Rainforest
Temperate Forest
Taiga Forest
Coral Reef
Environmental Issues
Land Pollution
Air Pollution
Water Pollution
Ozone Layer
Global Warming

Renewable Energy Sources
Renewable Energy
Biomass Energy
Geothermal Energy
Solar Power
Wave and Tidal Energy
Wind Power

Ocean Waves and Currents
Ocean Tides
Ice Age
Forest Fires
Phases of the Moon

Science >> Earth Science for Kids

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