Chapter 8:
Weather
Practice Test
1.
What is the weather usually like in an area beneath high-pressure air?
a.
rainy
b.
fair
c.
cold
d.
snowy
Hint
2.
Why does precipitation often form along warm fronts?
a.
because three air masses make up warm fronts
b.
Warm air cools and water droplets condense.
c.
because warm air is denser than cold air
d.
Cool air warms and water droplets condense.
Hint
3.
Which of the following is used to help in predicting the weather?
a.
all of these
b.
barometer
c.
satellite
d.
radar
Hint
4.
How do clouds form?
a.
when humidity decreases
b.
when water falls to the ground
c.
when water freezes
d.
when tiny water droplets condense
Hint
5.
Select an example of precipitation.
a.
snow
b.
humidity
c.
clouds
d.
fog
Hint
6.
When air is cooled to a particular temperature, condensation forms on Earth's surface. What is the temperature known as?
a.
dew point
b.
pressure point
c.
humid point
d.
precipitation point
Hint
7.
What is air that has a relative humidity of 100 percent?
a.
saturated
b.
warm
c.
dry
d.
freezing
Hint
8.
Which statement about the water cycle is
NOT
true?
a.
The water cycle is powered by the heat from Earth's core.
b.
Water flows from streams on land into oceans.
c.
Water evaporates from Earth's surface into the atmosphere.
d.
Groundwater forms when precipitation sinks below Earth's surface.
Hint
9.
Which clouds contain ice crystals and usually form at high altitudes?
a.
fog
b.
storm
c.
cirrus
d.
cumulus
Hint
10.
What causes thunder?
a.
rapid heating and expansion of air around lightning
b.
a collision between a warm and a cold front
c.
collisions between dust particles during a thunderstorm
d.
the leaping of lightning from cloud to cloud
Hint
11.
What causes the weather to change?
a.
thunderstorms
b.
swirling hailstones
c.
moving air masses
d.
frontal boundaries
Hint
12.
What is the amount of water measured in air at a certain temperature, compared with the total amount of water air can hold at that temperature?
a.
relative cloudiness
b.
relative temperature
c.
relative humidity
d.
relative precipitation
Hint
13.
How do frontal boundaries form?
a.
when an air mass collides with another air mass
b.
when the weather changes
c.
when rain changes into sleet
d.
when a warm air mass moves south
Hint
14.
What are hailstones made of?
a.
pellets of ice made of many layers
b.
softening snowflakes
c.
water droplets surrounding dust particles
d.
six-sided snowflakes
Hint
15.
Which is the largest type of storm that occurs on Earth?
a.
dust storm
b.
tornado
c.
hurricane
d.
thunderstorm
Hint
