NC 8.E.1.1 Earth's Waters (Hydrosphere)

Question 1

Water is the only substance on Earth that

Accepted Answer

commonly exists in all of its different states.

Question 2

Land covers more of Earth's surface than oceans do.

Accepted Answer

FALSE

Question 3

Tightness across surface of water, caused by polar molecules pulling on each other, is called

Accepted Answer

surface tension.

Question 4

Water that falls to Earth as rain, snow, sleet, or hail is called

Accepted Answer

precipitation.

Question 5

People can obtain groundwater by drilling a well

Accepted Answer

into an aquifer.

Question 6

As water moves through wetlands, some waste settles out, are absorbed, or trapped. Wetlands act

Accepted Answer

as natural filters.

Question 7

Marshes, bogs and lakes are examples of freshwater wetlands.

Accepted Answer

FALSE

Question 8

The streams and small rivers that feed into a main river are called

Accepted Answer

tributaries.

Question 9

Sources of salt water on Earth include ice, rivers, lakes, and groundwater.

Accepted Answer

FALSE

Question 10

Materials that allow water to pass through tem easily are

Accepted Answer

permeable.

Question 11

Study the picture. Which well(s) will not provide water? Explain why not.

Accepted Answer

Both b and c.

Question 12

A river system is made up of a river and its

Accepted Answer

tributaries.

Question 13

The total amount of water on Earth

Accepted Answer

is fairly constant.

Question 14

Most of the Earth's freshwater is found in

Accepted Answer

glaciers and permanent snow.

Question 15

Groundwater is often obtained by drilling a well to reach below the water table.

Accepted Answer

TRUE

Question 16

Water moves easily through impermeable materials.

Accepted Answer

FALSE

Question 17

Most of Earth's available freshwater is found

Accepted Answer

in groundwater.

Question 18

The land area that supplies water to a river system is called a divide.

Accepted Answer

FALSE

Question 19

The + hydrogen ends of one water molecule attract the - oxygen ends of other water molecules.

Accepted Answer

TRUE

Question 20

Water is often called the universal solvent because

Accepted Answer

it dissolves so many substances.

Question 21

Wetlands help control flooding by

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absorbing runoff from heavy rains.

Question 22

An aquifer is a(n)

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undergound layer of rock or sediment that holds water.

Question 23

Which of the following is NOT a type of freshwater wetland?

Accepted Answer

a lake

Question 24

Wetlands provide habitats for many living things because of their sheltered waters and

Accepted Answer

large supply of nutrients.

Question 25

The process by which a gas changes into a liquid is called

Accepted Answer

condensation.

Question 26

Of all of Earth's water, how much is available to support terrestrial life?

Accepted Answer

Less than 1%.

Question 27

Approximately what percentage of Earth's water is fresh water?

Accepted Answer

3 percent

Question 28

A water molecule is made up of

Accepted Answer

two hydrogen atoms bonded to an oxygen atom.

Question 29

Study picture. Which well(s) end(s) in a saturated zone?

Accepted Answer

wells 1, 3, and 5

Question 30

Because water consists of polar molecules

Accepted Answer

Water molecules tend to stick together.

Question 31

Water that fills the cracks and spaces in underground soil and rock layers is called

Accepted Answer

groundwater.

Question 32

The property of specific heat allows water to soak into a paper towel.

Accepted Answer

FALSE

Question 33

A lake that stores water for human use is called a(n)

Accepted Answer

reservoir.

NC 8.E.1.1 Earth's Waters (Hydrosphere)

Questions 33

NC 8.E.1.1 Earth's Waters (Hydrosphere)

Questions 33