Science unit test

Question 1

High Pressure System

Answer 1

Large body of circulating air with high pressure at its center and lower pressure outside the system; brings sunshine and good weather

Question 2

Low pressure System

Answer 2

Large body of circulating air with low pressure at its center and higher pressure outside the system brings clouds and precipitation

Question 3

Air mass

Answer 3

Large bodies of air that have uniform temperature humidity and pressure

Question 4

Are masses are classified by

Answer 4

temperature and moisture

Question 5

Air masses formed over water are called

Answer 5

maritime

Question 6

Air masses formed over land are called

Answer 6

Continental

Question 7

Warm masses are

Answer 7

Tropical

Question 8

Cold masses are

Answer 8

Polar

Question 9

Colliding Air masses can form four types of fronts:

Answer 9

Cold front
Warm Front
Stationary front
Occluded Front

Question 10

A cold front is when

Answer 10

Cold air moves under warm air forcing warm air up

Question 11

A warm front

Answer 11

Moves slowly and brings warm humid air

Question 12

A stationary front

Answer 12

Forms when a cold mass meets a warm mass but neither have enough force to move the other

Question 13

An occluded front

Answer 13

Warm air mass is caught between two cold air masses

Question 14

Storm

Answer 14

Violent disturbance in the atmosphere called severe weather

Question 15

Thunderstorm

Answer 15

A small storm accompanied by thunder and lightning formed from large cumulonimbus clouds

Question 16

Tornado

Answer 16

Rapidly whirling funnel-shaped cloud that reaches down from a storm cloud and touches the earth’s surface when thunderstorm updrafts begin to rotate

Question 17

Hurricane

Answer 17

Tropical storms with winds exceeding 119 km/hr. Formed over warm ocean water as a low-pressure area

Question 18

Blizzard

Answer 18

Violent winter storms that are characterized by freezing temperature, strong winds, and blowing snow

Question 19

Line with only triangles on the top

Answer 19

Cold Front

Question 20

Line with only circles on top

Answer 20

Warm front

Question 21

Circle first on top- then triangle on bottom- so on and so forth

Answer 21

Stationary front

Question 22

circle , triangle, circle, triangle all on the top of the same line

Answer 22

occluded front

Question 23

Meterologists

Answer 23

Scientists who study the causes of weather and try to predict it; use maps, charts and computers to analyze data to prepare weather forecasts.

Question 24

Surface Report

Answer 24

Description of a set of weather measurements made on earth’s surface

Question 25

Upper air report

Answer 25

Describe wind, temperature, and humidity conditions above the earth’s surface.