Ch 6 Water cycle/Weather

Question 1

The amount of water vapor in the air is

Answer 1

Humidity

Question 2

Boundaries between air masses

Answer 2

Fronts

Question 3

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

Answer 3

Cold front

Question 4

Warm air rises over a massif old air

Answer 4

Warm front

Question 5

What happens when cold air meets warm air?

Answer 5

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.

Question 6

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

Answer 6

Stratus clouds

Question 7

Measures air pressure

Answer 7

Barometer

Question 8

Measures wind speed

Answer 8

Anemometer

Question 9

Measures humidity in the air

Answer 9

Hygrometer

Question 10

Greenhouse gases can be beneficial because it

Answer 10

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

Question 11

About ? of theEarths surface is covered with water

Answer 11

3/4

Question 12

Ocean water is ? Fresh water is ?

Answer 12

Salty

Not

Question 13

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

Answer 13

Many rivers (fresh water) flow into it.

Question 14

What does the sun do in the water cycle?

Answer 14

Water vapor evaporates in the suns warmth

Question 15

When water vapor becomes a liquid.

Answer 15

Condensation

Question 16

When moist air rises

Answer 16

It cools, condenses, and forms a cloud

Question 17

Describe the water cycle

Answer 17

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.

Question 18

A force that surrounds the earth

Answer 18

Air

Question 19

When there is an area of low pressure nearby, air

Answer 19

Becomes less dense

Question 20

Air pressure is ? at the top of mountains

Answer 20

Lower