Atmosphere
Air Pressure
Wind
Precipitation
Masses and Fronts
100
The most abundant gas in Earth's atmosphere
What is Nitrogen?
100

Define air pressure 

How many gas particles there are pushing down on the air at any time 

100

Land heats up faster _______________ but the ocean heats up faster ______________

during the day; at night

100

The four types of precipitation 

Rain, snow, sleet, hail 

100
A body of air with the same temperature, pressure, and relative humidity. 
What is an air mass?
200
The second most abundant gas in Earth's atmosphere.
What is oxygen?
200

What is denser: high pressure systems or low pressure systems? 

High pressure systems 

200
The location with higher air pressure when a land breeze blows.
What is the land?
200

What needs to happen before there can be precipitation? 

Water must evaporate into water vapor in the atmosphere, and this water vapor must cool and condense into clouds. Then, the clouds and water droplets continue to get bigger and bigger as more water is added until they are so big they get pulled to the ground by gravity. 
200
The boundary between a fast moving warm air mass and a slower cold air mass.
What is a warm front?
300

What is the relationship between air temperature and altitude?

The higher the altitude, the lower the temperature

The closer you are to the ground, the higher the temperature

300
Air pressure moves from areas of_____ pressure to _____ pressure.
What is High to Low?
300

The effect of the rotation of Earth on Global winds.

Uneven heating creates convection currents and rotation changes the movement of this air and makes it horizontal 

300

The phase change that forms clouds.

What is condensation?

300

The front that brings thunderstorms.

What is a cold front?

400

The main heat source of the atmosphere.

What is the Sun?

400

I have two samples of gas with equal masses. Sample A is warmer than Sample B. Which sample has a higher pressure? 

Sample B: sample A is warmer so the particles are going to be more spread out. 

400

The driving force causing land and sea breezes to blow.

What is uneven heating?

400

What happens when the air is holding as much water vapor as it possibly can? 

The water vapor will condense and form clouds/dew and there will be rain


400
The front that brings long lasting rain.
What is a warm front?
500

Why does air pressure decrease as you go higher up in the atmosphere? 

Most gas producing/using organisms live closer to the surface of Earth, and the force of gravity keeps particles lower in the atmosphere. 

500

Which causes cloudy weather: high pressure system or low pressure system? Why? 

Low pressure system because the air is less dense and rises, but in a high pressure system the air sinks so no clouds form. 

500

Describe what is happening during a sea breeze

The land heats up faster than the ocean, so warm air above the land rises and cool air from the ocean moves in to fill the empty space

500

The relationship between humidity and temperature

The higher the temperature, the more water vapor the air can hold 

500

Draw the lines used to represent the four different types of fronts on a weather map. 

 

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