acid rain
Acid rain is polluted and is harmful to the environment.
atmosphere
The atmosphere is the gas that surrounds a planet.
centigrade
Centigrade is a measure of temperature that is abbreviated C. Water freezes at 0°C and boils at 100°C.
cloud
Clouds are white or gray object that floats in the air and contains tiny water drops or ice particles.
cyclone
A cyclone is a storm of rapidly spinning air that is very dangerous.
dust storm
A dust storm is a very strong wind that carries dust across the land. Dust storms occur in dry areas, like deserts
evaporation
Evaporation is the process in which a liquid goes into its gaseous form, for example, when liquid water becomes water vapor.
fahrenheit
Fahrenheit is a measure of temperature that is abbreviated F. Water freezes at 32°F and boils at 212°F.
hail
Balls of ice that fall from clouds are called hail or hailstones.
hurricane
A hurricane is a strong storm with high winds and rain. The very center of the storm, called the eye, is calm.
ice
Ice is frozen water.
Ice Age
An Ice Age is a time when the Earth becomes very cold and much of it is covered with ice and glaciers. There have been many Ice Ages on Earth; the last one lasted from about 2 million to 10,000 years ago.
iceberg
An iceberg is a huge chunk of ice that floats in the sea. Most of an iceberg is hidden under the water.
icicle
Icicles are hanging ice that are formed from dripping water.
lightning
Lightning is a flash of light in the sky caused by an electrical storm.
meteorologist
A meteorologist is a scientist who studies the weather.
precipitation
Precipitation is rain, snow, hail, or sleet.
radar
Radar is a device that uses reflected radio waves to located objects at a distance. Radar is short for "radio detection and ranging."
rain
Rain is water that falls from clouds. Rain is measured using a rain gauge.
rainbow
A rainbow appears when sunlight passes through bits of water in the air. The white light is broken up into many colors.
sky
The sky is blue.
sleet
Sleet is freezing rain.
snow
Snow is flakes of frozen water that fall from clouds when it is very cold.
snowflake
Snowflakes are made of snow - they are crystals. No two snowflakes look alike, but they all have six sides.
storm
A storm is very bad weather, like a hurricane or a typhoon.
thermometer
A thermometer is used for telling what the temperature is.
thunderstorm
A thunderstorm is a an electrical storm with lightning (flashes of bright light), which creates thunder (very loud sounds).
tornado
A tornado is rapidly spinning air that is very dangerous. Tornados are funnel-shaped. If a tornado travels over a body of water, it is called a waterspout.
twister
Twister is another name for a tornado, a rapidly spinning air that is very dangerous.
vortex
Rapidly spinning gas or liquid is called a vortex.
water
Water is a liquid that we drink and use to wash. Water covers over two thirds of the surface of the Earth, and much of our body is made of water.
water cycle
The Water Cycle is the journey water takes as it circulates from the Earth to the sky and back again.
waterspout
A waterspout is a tornado that travels over a body of water.
weather
Weather is the state that the outdoors is in, like how windy it is, how hot or cold it is, or if it is raining or snowing.
weather balloon
A weather balloon is a giant balloon that is sent high in the sky to measure weather information, like temperature, wind speed, and air pressure.
weather vane
A weather vane is a device that points the way the wind is blowing.
whirlwind
Rapidly spinning air is called a whirlwind.
wind
The wind is air that blows outside.
windsock
A windsock is a device that shows which way the wind is blowing and the wind's speed.