Science: Earth and Space (Test 8)

1

100

What is the name of a high-level cloud

cirrostratus

200

What type of front does a frontal cyclone usually begin with?

stationary front

300

What mid level clouds are known for covering the sky and producing steady precipitation? 

nimbostratus

400

A lack of precipitation that affects an area's crops is called 

agricultural drought

500

The movement of water from the air to the earth's surface and back is the 

hydrologic (water) cycle

2

100

Two unmoving air masses of different temperatures form what type of front?

stationary

200

When an area if receiving less precipitation that normal it is experiencing what type of drought?

meteorological

300

Lens shaped clouds that often form near mountains are called what type of clouds? 

lenticular

400

The area of the surface over which an air mass formed is its

source region

500

Water vapor whose temperature has dropped below the freezing point is said to be

supercooled

3

100

When evaporation and condensation are occurring the same rate, the air is said to be

saturated

200

Liquid precipitation that freezes when it hits the ground or another substance is called

freezing rain

300

This consists of large drops of liquid water

rain

400

Ice crystals usually in geometric shapes

snow

500

Layers of glaze and rime

hail

4

100

Forms as balls of ice are blown by a thunderstorm updraft

hail

200

What type of precipitation consists of drops of liquid water smaller than raindrops?

drizzle

300

What is the general term for fog that forms when air near the ground cools rapidly on a clear night

radiation fog

400

What do meteorologists call an extended period of heave snow and high winds? 

blizzard

500

What is the boundary between two air masses of different temperatures called?

front

5

100

What is a cloud that has a low level base and a top composed of ice crystals?

cumulonimbus

200

What is the ratio of the amount of water in the air to the amount of water saturated air called?

relative humidity

300

What term refers to the temperature at which cooling air begins condensing?

dew point

400

What is a brownish haze that develops as complex molecules are broken down into ozone and other harmful substances?

photochemical smog

500

A brief intense snow fall is called a

blizzard