Ch 6 Water cycle/Weather Flashcards Preview

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Flashcards in Ch 6 Water cycle/Weather Deck (20):
1

The amount of water vapor in the air is

Humidity

2

Boundaries between air masses

Fronts

3

Leading edge of a cooler mass of air, replacing (at ground level ) a warmer mass of air

Cold front

4

Warm air rises over a massif old air

Warm front

5

What happens when cold air meets warm air?

Warm air, which is lighter, is pushed on top of the cold air. The airfoils as it rises and water vapor condenses forming clouds. Some form of precipitation usually occurs, most like thunderstorm.

6

Flat, hazy, grayish clouds. What you see on a cloudy day

Stratus clouds

7

Measures air pressure

Barometer

8

Measures wind speed

Anemometer

9

Measures humidity in the air

Hygrometer

10

Greenhouse gases can be beneficial because it

Keeps the earth warmer. Without it, the earth would be about 54 degrees colder and unable to sustain life.

11

About ? of theEarths surface is covered with water

3/4

12

Ocean water is ? Fresh water is ?

Salty
Not

13

Why is the Baltic Sea less salty than the other seas?

Many rivers (fresh water) flow into it.

14

What does the sun do in the water cycle?

Water vapor evaporates in the suns warmth

15

When water vapor becomes a liquid.

Condensation

16

When moist air rises

It cools, condenses, and forms a cloud

17

Describe the water cycle

Precipitation falls to the ground.
The sun warms the liquid and turns it to water vapor
The water vapor rises and condenses to a cloud.

18

A force that surrounds the earth

Air

19

When there is an area of low pressure nearby, air

Becomes less dense

20

Air pressure is ? at the top of mountains

Lower