Quiz about Earth's Water

Question 1

From space, water on Earth's surface appears blue. About how much of the earth's surface is blue?

Accepted Answer

C. 75%

Answer

A. 99%

Answer

B. 50%

Answer

D. 25%

Question 2

Rain occurs after water has evaporated from the Earth's surface. Which of these is the main source of water on the Earth's surface?

Accepted Answer

D. oceans

Answer

A. wetlands

Answer

B. lakes

Answer

C. rivers

Question 3

Which of the following statements is true?

Accepted Answer

D. 97% of the Earth's water is salt water.

Answer

A. 30.1% of the Earth's water is salt water.

Answer

B. 0.3% of the Earth's water is fresh water.

Answer

C. 97% of the Earth's water is fresh water.

Question 4

Fresh water is used by people every day. Some uses of fresh water include drinking water for people and the water used to wash dishes and clothes. Fresh water can also be used to make electricity. Fresh water exists in a variety of places on Earth. Where is greatest amount of fresh water in the world found?

Accepted Answer

A. glaciers

Answer

B. wetlands

Answer

C. lakes

Answer

D. rivers

Question 5

Which body of surface water is a solid?

Accepted Answer

C. glacier

Answer

A. ocean

Answer

B. river

Answer

D. lake

Question 6

The picture shows that the majority of Earth's surface water makes up one type of water body, labeled X.

What type of water body does section X on the picture show?

Accepted Answer

B. oceans

Answer

A. lakes

Answer

C. groundwater

Answer

D. glaciers

Question 7

Of all the water found on Earth, how much of it is fresh water?

Accepted Answer

D. about 3%

Answer

A. about 30%

Answer

B. less than 1%

Answer

C. more than 70%

Question 8

True or False: The water cycle begins with evaporation.

Accepted Answer

False

Answer

True

Question 9

What is the driving force of the water cycle?

Accepted Answer

the sun

Answer

energy

Answer

electricity

Answer

batteries

Question 10

The water cycle is a part of which sphere?

Accepted Answer

hydrosphere

Answer

biosphere

Answer

geosphere

Answer

atmosphere

Question 11

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

Accepted Answer

Evaporation, Condensation, Precipitation

Answer

Precipitation, Evaporation, Condensation

Answer

Condensation, Precipitation, Evaporation

Answer

Precipitation, Condensation, Evaporation

Question 12

What do the clouds represent in the water cycle?

Accepted Answer

condensation

Answer

evaporation

Answer

precipitation

Answer

run-off

Question 13

When water droplets in a cloud combine, become large and heavy and fall back to Earth as rain or snow, it is called

Accepted Answer

precipitation

Answer

evaporation

Answer

condensation

Answer

run-off

Question 14

Clouds form when water vapor in the air...

Accepted Answer

cool and condenses into liquid droplets

Answer

falls to the ground.

Answer

becomes liquid water or ice crystals

Answer

is deposited as ice onto a solid surface.

Question 15

The model below shows where water can be found during different stages of the water cycle. What should be added to the diagram to better explain the water cycle?

Accepted Answer

The sun to provide energy for evaporation.

Answer

Soil to trap water from runoff.

Answer

Plants to provide oxygen in the atmosphere.

Answer

Rocks to release thermal energy.

Question 16

What role does runoff play in the water cycle?

Accepted Answer

It carries water from precipitation into oceans.

Answer

It is the process in which liquid turns to water vapor.

Answer

It takes water out of the water cycle.

Answer

It is not part of the water cycle.

Question 17

A student places an open jar of water on a sunny windowsill to show part of the water cycle.  Which change can the student make to this model to better show condensation?

Accepted Answer

Add a lid to the jar.

Answer

Add more water to the jar.

Answer

Pour some water out of the jar.

Answer

Put a white piece of paper under the jar.

Question 18

A diagram of the stages in the water cycle is shown below.  Which of these observations would most likely be seen at Stage N?

Accepted Answer

Water flowing downhill

Answer

Fog forming along a highway

Answer

The water level of a lake decreasing

Answer

Dark clouds forming in the sky

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