Weather words
The water cycle
Air movement
Storms
Big Ideas
100
Water that falls from the sky, like rain, snow or hail.
precipitation
100
The 3 states of water
solid, liquid, gas
100
The direction in which warm air moves.
Up! (it rises)
100
The place where two different air masses meet.
front
100
The most important question for this whole unit: "What causes _____________?"
What causes storms?
200
How hot or cold something is.
Temperature
200
Water in the air that you cannot see.
Gas (water vapor)
200
The direction in which cold air moves.
Down! (it sinks)
200
Are storms usually found in high pressure or low pressure systems?
low pressure
200
Warm air is less dense and rises, while cold air is more dense and ________________.
sinks (goes down)
300
Balls of ice that fall during a storm.
Hail
300
The process when liquid water turns into a gas or water vapor.
evaporation
300
When warm air near the ground is heated up, it becomes ____________ and then it rises.
less dense!
300
Name 3 different types of precipitation
rain, hail, sleet, freezing rain,
300
For a storm to start, the air near the ground must be this temperature.
warm
400
The air that surrounds the earth.
Atmosphere
400
The process when water vapor (gas) cools and turns back into liquid water.
Condensation
400
Is the air up high in the atmosphere warmer or colder than air on the ground?
Colder
400
How are clouds made?
Condensation happens when warm air rises and mixes with cold air. This forms water droplets.
400
The warm air near the ground is less __________ so it rises quickly.
dense
500
The word for how much water vapor is in the air. (Think about your weather log)
Humidity
500
The temperature at which water freezes to ice.
32 degrees farenheit or 0 degrees celcius
500
The type of air that is more dense and moves down toward the ground
cold air
500
In a storm, what does the warm air near the ground do? Does it rise (go up) or sink (go down)?
It rises
500
For a storm to have rain or hail, the air must have a lot of this.
Humidity