Weather
Instruments and Devices
Winds and currents
Water
Clouds
100

What extremely powerful computers do meteorologists use to generate weather forecasts?

What is a supercomputer

100

What device is used to measure the amount of rainfall that a location receives?

rain gauge

100

Heat from a fireplace causes air to circulate throughout a room as hot air rises and cold air sinks. What is this type of air circulation called?

What is a convection current

100

What forms when water vapor in the air touches cool ground and turns into a liquid?

dew

100

Which type of cloud is characteristically almond shaped?

What is a lenticular cloud

200

What term refers to numbers and symbols on a weather map that indicate observations at a particular weather station?

What is station model

200

What is an instrument that measures wind speed?

What is an anemometer

200

What are the surface winds that blow toward the equator in the tropics?

What are trade winds

200

What thunderstorm stage is marked by the arrival of precipitation?

What is a mature stage

200

What is radiation fog that extends no more than 2 m (6 ft) above the ground called?

What is shallow fog

300

What is a single updraft system in a thunderstorm?

What is a cell

300

What instrument indicates the direction of wind?

What is a weather vane

300

What term describes atmospheric conditions that limit the height to which rising air can travel?

What is stable

300

What is the feathery deposit of ice crystals that forms when water vapor crystallizes on the ground?

What is frost

300

Which type of cloud usually produces heavy rains, strong winds, and sometimes hail or                              tornadoes?

What is a cumulonimbus cloud

400

What is a rotating column of air that starts on the ground and is not associated with a cloud?

What is a dust devil

400

What is the weather instrument that simultaneously measures and transmits meteorological data from weather balloons to weather stations

What is a radiosonde

400

What is the change in the direction of winds caused by Earth's rotation?

What is the Coriolis effect

400

What is the movement of water from the earth's surface, into the air, and back to the surface?

What is the hydrologic cycle

400

What type of high-level clouds form wispy streamers that look like feathers or hair?

What I a cirrus cloud

500

What indicates that a frontal cyclone has reached its full strength?

What is the formation of an occluded front

500

What instrument uses a flexible, airtight metal box to measure changes in atmospheric pressure?

What is a aneroid barometer

500

What is the point where the solar wind pushes on Earth's magnetic field?

What is the magnetopause

500

What is the type of precipitation that forms when falling balls of ice are swept into the upper layers of a thunderstorm

What is hail

500

Which type of lightning comes from the top of a large thunderstorm?

What is positive cloud-to-ground lightning

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