Reading a weather map
The water cycle
weather instruments
Severe weather
How weather is formed
100

Lines on a weather map that connect places with the same atmospheric time. 

Isobars

100

Water from oceans, lakes, rivers, and other bodies of water heats up and changes into __________

Evaporation

100

___________ measures air pressure

Barometer

100

Storms that involve heavy rain lightning and thunder. 

Thunderstorms

100

The amount of heat and coolness is ______________

Temperature

200

Boundaries between different air masses.

Fronts

200

Water vapor cools changes in to ________________

Condensation

200

___________ measures wind speed.

Anemometer

200

Violently rotating colomes of cloudes and wind.

Tornadoes

200

Differences in ___ ___________ drive wind.

Air pressure

300

A ____ air mass pushes into a warmer air mass, often bringing thunderstorms or rain.

Cold fronts

300

When the water droplets fall it is known as __________

Precipitation

300

Something that measures temperature is a ______________

Thermometer

300

Large, powerful storms that form over warm ocean water.

Hurricanes

300

The amount of water vapor in the air affects parcipitation because of ________________

Humidity

400

A ____ air mass moves into a cooler air mass. 

Warm fronts

400

Water that falls to the ground moves through rivers, streams are known as ______________

Runoff

400

____________ measures humidity.

Hygrometer

400

Severe snowstorms with strong wind.

Blizzards

400

____ is caused by the amount of movement of air.

Wind

500

Weater maps use _______ like clouds, rain, snow, or sunshine.

Symbols

500

Some of the water soaks into the soil is known as _______________

Infiltration

500

____________ measures the amount of rain fall.

Rain gauge

500

When there is to much water in an area it ________

Floods

500

The ___'s ______ warms the Earth's serfes. 

Sun's energy

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