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Earth's Water

Total questions: 63

Worksheet time: 32mins

Name
Class
Date
1.

Roughly what percent of Earth's surface is covered in water?

a)

70%

b)

50%

c)

98%

d)

25%

2.

In what states does water exist on Earth?

a)

solid

b)

liquid

c)

gas

3.

About what percent of Earth's water is saltwater?

a)

3%

b)

25%

c)

70%

d)

97%

4.

The measure of water's salt content is...

a)

salinity

b)

density

c)

viscosity

d)

tonicity

5.

Most of Earth's freshwater is locked in...

a)

glaciers and ice caps

b)

groundwater

c)

lakes and ponds

d)

the atmosphere

6.

Water molecules are...

a)

polar

b)

nonpolar

7.

Water is made of...

a)

2 hydrogens and 1 oxygen

b)

1 hydrogen and 2 oxygens

c)

1 helium and 1 oxygen

d)

2 heliums and 1 oxygen

8.

Which side of the water molecule has a partially negative charge?

a)

hydrogen side

b)

oxygen side

9.

Polar molecules have...

a)

balanced electrical charges

b)

imbalanced electrical charges

c)

balanced molecular masses

d)

imbalanced molecular masses

10.

The bond between opposite partials charges of two water molecules is called a ___ bond.

a)

hydrogen

b)

oxygen

c)

ionic

d)

covalent

11.

Water is...

a)

cohesive only

b)

adhesive only

c)

both cohesive and adhesive

d)

neither cohesive and adhesive

12.

In which state of matter do water molecules have so much energy they overcome hydrogen bonding and fly around as individual particles?

a)

solid

b)

liquid

c)

gas

13.

liquid water becomes a gas

a)

infiltration

b)

transpiration

c)

evaporation

d)

sublimation

e)

deposition

14.

water vapor collects as liquid droplets

a)

infiltration

b)

transpiration

c)

condensation

d)

sublimation

e)

deposition

15.

water vapor freezes directly onto a surface, e.g. frost

a)

infiltration

b)

transpiration

c)

condensation

d)

sublimation

e)

deposition

16.

solid ice turns directly into water vapor

a)

infiltration

b)

transpiration

c)

condensation

d)

sublimation

e)

deposition

17.

water enters plant roots, goes up their stems, and evaporates out pores in their leaves

a)

infiltration

b)

transpiration

c)

condensation

d)

sublimation

e)

deposition

18.

water seeps into the ground

a)

infiltration

b)

transpiration

c)

condensation

d)

sublimation

e)

deposition

19.

water is most dense as a...

a)

solid

b)

liquid

c)

gas

20.

Because water can dissolve most substances, it's nicknamed the...

a)

universal solute

b)

universal solvent

c)

universal unit

d)

universal indicator

21.

Water has a ___ surface tension.

a)

strong

b)

weak

22.

Which property of water is called "capillary action"?

a)

it can climb up thin tubes

b)

it sticks to other surfaces

c)

it can dissolve most substances

d)

it is less dense as ice than it is as a liquid

23.

Which French word is used to describe a place where water is stored?

a)

reservoir

b)

deja vu

c)

rendezvous

d)

liaison

24.

water falling from the sky (rain, snow, sleet, etc.)

a)

precipitation

b)

percolation

c)

evaporation

d)

transpiration

e)

irrigation

25.

humans directing waterflow to fit our purposes, like for farming

a)

precipitation

b)

percolation

c)

evaporation

d)

transpiration

e)

irrigation

26.

What energy source drives the water cycle?

a)

the sun

b)

heat from Earth's core

c)

gravity

d)

chemical reactions in Earth's soil

27.

Which term describes the flow of water in a stream or in a body of water, like the ocean?

a)

current

b)

tributary

c)

confluence

d)

Coriolis effect

28.

All streams flow...

a)

south

b)

east

c)

downhill

d)

towards the equator

29.

Where a stream starts is called its...

a)

source

b)

mouth

c)

delta

d)

tributary

30.

A spring may exist where the ___ meets the surface.

a)

water table

b)

impermeable rock

c)

confluence

d)

delta

31.

River A merges with River B. This makes River A a(n)...

a)

tributary

b)

headwater

c)

estuary

d)

water basin

32.

Brackish water is...

a)

completely fresh

b)

very salty

c)

a mixture of salt- and freshwater

d)

normal saltwater

33.

Brackish water is found in...

a)

lakes and ponds

b)

streams

c)

estuaries

d)

the aphotic zone of the ocean

34.

Mountains divide areas into different...

a)

tributaries

b)

mouths

c)

basins

d)

confluences

35.

Besides their size, another common difference between ponds in lakes is that, unlike ponds, lakes usually have...

a)

freshwater

b)

saltwater

c)

streams coming into or out of them

d)

brackish water

36.

Most of the world's lakes are in...

a)

North America

b)

Europe

c)

Asia

d)

Africa

37.

Unlike marshes, swamps have...

a)

seasons

b)

grasses and shrubs

c)

trees

d)

shallow water covering them

38.

Which type of glacier is found in mountainous regions?

a)

alpine/valley

b)

continental

c)

ice cap

39.

Which type of glacier are Greenland and Antarctica?

a)

alpine/valley

b)

continental

c)

ice cap

40.

A reservoir within the ground is called a(n)...

a)

aquifer

b)

geyser

c)

glacier

d)

confluence

41.

Aquifers exist within...

a)

permeable rock

b)

impermeable rock

c)

felsic rock

d)

mafic rock

42.

A well dug below the water table doesn't need its water pumped up. This type of well is called a(n) ___ well.

a)

artesian

b)

Roman

c)

permeable

d)

fermian

43.

A spring within a desert is called a(n)...

a)

recharge

b)

oasis

c)

tributary

d)

delta

44.

Fossil water is trapped in...

a)

confined aquifers

b)

unconfined aquifers

c)

benign aquifers

d)

malignant aquifers

45.

Hot springs and geysers are heated by...

a)

the sun

b)

magma chambers

c)

gravitational potential energy

d)

supernovae

46.

Which ocean exists between N. America and Europe?

a)

Pacific

b)

Atlantic

c)

Indian

d)

Arctic

e)

Southern

47.

Which ocean exists between S. America and Australia?

a)

Pacific

b)

Atlantic

c)

Indian

d)

Arctic

e)

Southern

48.

Which ocean exists between Africa and Australia?

a)

Pacific

b)

Atlantic

c)

Indian

d)

Arctic

e)

Southern

49.

Which ocean surrounds Antarctica?

a)

Pacific

b)

Atlantic

c)

Indian

d)

Arctic

e)

Southern

50.

On average, sea water is about ___ salt.

a)

3.5%

b)

23.5%

c)

66%

d)

0.01%

51.

Saltwater is ___ than freshwater

a)

more dense

b)

less dense

52.

Which ocean zone receives the most light?

a)

photic

b)

aphotic

c)

mid-water

53.

Which ocean zone receives no light at all?

a)

photic

b)

aphotic

c)

mid-water

54.

Which ocean zone experiences high and low tide?

a)

intertidal

b)

oceanic

c)

neritic

55.

In which ocean zone do coral reefs exist?

a)

intertidal

b)

oceanic

c)

neritic

56.

Molecules in waves move in ___ patterns.

a)

linear

b)

circular

c)

square

d)

triangular

57.

The top of a wave is called the...

a)

amplitude

b)

crest

c)

riptide

d)

coriolis

58.

Most ocean waves are caused by...

a)

gravity

b)

wind

c)

earthquakes

d)

the sun's heat

59.

Tsunami are typically caused by...

a)

gravity

b)

wind

c)

earthquakes

d)

the sun's heat

60.

Tides are caused by...

a)

the moon's gravity

b)

the sun's radiation

c)

heat from the Earth's core

d)

wind

61.

Ocean currents can greatly influence the ___ of an area.

a)

elevation

b)

climate

c)

genealogy

d)

topography

62.

The Coriolis effect is caused by...

a)

the Earth's rotation

b)

the sun's radiation

c)

wind patterns

d)

the moon's gravity

63.

Due to the Coriolis effect, objects moving in the northern hemisphere curve towards the...

a)

right

b)

left

c)

east

d)

west

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