24 terms

weather quiz

2 grade study guide
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Rain gauge
a weather instrument used to measure the amount of rainfall
Weather vane
an instrument that shows the direction of the wind
Flood
water that fills up an area of land, usually low land. Can be caused by rivers overflowing due to lots of rain, waves coming ashore, snow melting too fast or dams breaking.
Blizzard
very dangerous snow storm with high winds and cold temperatures
Tornado
rotating funnel of wind that comes from strong thunderstorms. Wind speeds can be more than 250 miles per hour and last about 15 minutes.
Temperature
How hot or how cold something is
Thermometer
Instrument used to measure temperature
Celsius
The metric measurement unit for temperature - used by scientists and other countries
Fahrenheit
The Standard English unit for temperature used in the United States
Water Cycle
How water moves to land -- evaporation, condensation and precipitation
Evaporation
When water is heated, it turns from liquid to gas (water vapor). (water puddle drying next to the pool on a hot day)
Condensation
When water vapor is cooled and turns into liquid (in the sky, this forms a cloud)
Precipitation
Fancy word for rain or snow. Water falls to the ground as rain, snow, sleet or hail.
Rain
Condensed water vapor that falls to the earth as liquid
Sleet
Ice pellets created by freezing rain as it falls to the ground. It freezing as it falls.
Hail
Large frozen raindrops formed during a thunderstorm. It is frozen before it falls. Can do a lot of damage to homes and cars.
Snow
Water vapor that is frozen into flakes that are usually six sided.
Seasons
Weather changes that occur at different times of the year. Fall, Winter, Spring, Summer. Flowers bloom and leaves grow on trees in Spring and Summer. Flowers die and leaves fall off trees in Fall. Snow in winter.
Thunderstorm
A storm with lightning, thunder, rain and sometimes hail. Lightning heat the air up to 54,000 degrees F.
Thunder
The sound of lightning.
Hurricane
Large and violent tropical storm. Winds range from 74 to 155 miles per hour. They get their power from water and lose power over the land.
Drought
Long period of dry weather without any rain. This is very bad for growing crops or replacing the water in rivers and lakes.
Meterologist
A scientist who studies the weather using instruments.
Weather
What is happening ini the air around us.

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