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0

How do scientists classify air masses?

Humidity
Temperature

1

Maritime= what?

Ocean

2

Continental=

Land

3

Maritime polar=

Cold air temp
humid air humidity.

4

Continental tropical =

Hot air temp
dry air humidity

5

Maritime tropical =

Hot air temp
Humid air humidity

6

Continental polar =

Cold air temp
Dry air humidity

7

What causes weather to change?

When 2 air masses collide at different temperatures and they don't mix easily.

8

What 2 things move the 4 major types of air masses

Prevailing westerlies and jet streams

9

The boundary where two air masses meet becomes what?

A front

10

Cold air is _________ and tends to ________

Dense
Sink

11

Warm air is ___ _____ and tends to ____.

Not dense
Rise

12

What front??
-Cold air mass and hot air mass meet but cannot move each other
-Fast moving warm air mass overtakes a slow moving cold air mass
-Warm air mass caught between two cold air masses.
-Fast moving cold air mass runs into a slow moving warm air mass and slides under the warm air mass

Stationary front
Warm front
Occulated front
Cold front

13

Tornadoes form when what two types of air masses meet?

When warm humid air mixes with cold dry air.

14

What is the difference between a tornado watch and a tornado warning?

A tornado watch is when a tornado had NOT been spotted but there is a possibility of one
A tornado warning is when a tornado HAS been spotted

15

Name the stage of the water cycle.
What is precipitation?
What is a runoff?
What is condensation?
What is evaporation?

Precipitation= liquid that formed the clouds becomes too heavy and falls to earth.
Evaporation= the process in which water molecules in liquid water escape into the air as water vapor (gas)
Runoff= the variety of ways water moves across land.
Condensation= the process by which water vapor in the air is changed into liquid water

16

True or false?
Each cloud type is associated with a different type of weather?

True

17

Scientists classify clouds based on their ________ and _____

Altitude and shape

18

Clouds form when water vapor in the air condenses to form liquid ____ and ___ crystals

Water and ice

19

Water cycle

1
2
3
4

1 evaporation
2 condensation
3 precipitation
4 runoff.

20

Plants in the water cycle
What stage of the water cycle do plants contribute to?
What is the name for the "sweating" they do?

Evaporation
Transpiration

21

The movement of water between the atmosphere and earths surface is called the _____ _____

Water cycle

22

________ is the measure of the amount of water vapor in the air

Humidity

23

What affects the air's ability to hold water?

Temperature of the air

24

What temperate of air holds more water vapor?

Warm/hot air

25

The closer you are to earth the ____ air pressure you feel on you

More

26

The farther away you are from earth the ____ air pressure you feel on you.

Less

27

____ is a major factor in our weather

Heat

28

Where does heat come from?

Our sun

29

Air temperature is usually measured using a

Thermometer