Lesson 1
Ice, snow, rain, hail.
Types of precipitation.
Define weather
The condition of the atmosphere at a given time.
What is an air mass?
A large body of air with the same temperature and humidity throughout.
Water that doesn't soak into the ground.
Runoff
Barometer
Measures air pressure.
What is condensation? What is one form of condensation?
The change from a gas to a liquid. Dew.
What is humidity?
The amount of water vapor in the air.
The boundary between two air masses.
Fronts
The process by which gas changes into a liquid.
Condensation
Measure the amount of rain.
What is a glacier?
A huge mass of frozen water that moves slowly.
What is air pressure?
The weight of the atmosphere pressing down on the earth.
What is one way scientist measure the weather?
Weather satellites, weather balloons, and weather monitoring stations.
Water that falls from clouds to the earth's surface.
Precipitation
What do we measure humidity and air pressure in?
In Hg and percent.
What is each step in the water cycle?
Evaporation/transpiration, condensation, precipitation, runoff.
What is the difference between a sea breeze and a land breeze?
Sea Breeze: Cooler higher air pressure goes from the water to the land.
Land Breeze: Cooler higher air pressure air goes from the land to the sea.
What is a hurricane?
A hurricane is a tropical storm with winds that have reached a constant speed of 74 miles per hour or more.
Evaporation
When a liquid turns into a gas.
Wind vane
Used to show the direction of the wind.
What is ground water?
Water that is stored underground.
What are the three types of clouds and what do they mean?
Cirrus Clouds: Thin clouds that are very high up in the atmosphere.
Stratus Clouds: Thick wet clouds that could bring precipitation.
Cumulus Clouds: High and thick clouds that bring thunderstorms.
What is the difference between a cold front and a warm front?
Cold fronts: Large clouds, cool air, thunderstorms, and cool air follows.
Warm fronts: Steady precipitation, warm air follows.
Transpiration
The process in which plants release the water inside it in the form of moisture or water vapor.
Hygrometer
Measure humidity