earth science unit 6 test

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Which of the following locations will most likely have the highest rate of evaporation?

Atlantic Ocean

Precipitation _____.

exceeds evaporation over land

When water freezes, it _____.

expands and becomes less dense

About 70% of Earth's freshwater is _____.

frozen in glaciers and ice caps

Most saltwater-use is to _____.

generate electricity

Water _____.

is neither an acid nor a base

What does a wavelength measure?

the horizontal distance between two crests

Select all of the answers that apply. Water _____.

- can dissolve most substances - contains dissolved minerals - expands when it freezes

Select all of the answers that apply. Thermohaline circulation is driven by _____.

- density - salinity - temperature

Select all of the answers that apply. Warm water _____.

- is less dense than cold water - has lower salinity than cold water

About 90% of Earth's ice is found in _____.

Antarctica

Which of the following statements is true?

Saltwater can be treated and used for drinking water.

Neap tides happen when _____.

The Sun and moon are at right angles to the earth.

Melinda lives in a larger, U-shaped valley. It was most likely formed by _____.

a glacier

Juliet is using a paper towel to clean up a juice spill. The liquid sticks to the paper towel because of _____.

adhesion

permeable

allowing a fluid to pass through

A watershed is _____.

an area where all draining water goes into the same river system

Tides _____.

are caused by the gravitational pull of the moon and Sun

Recent warming trends _____.

are causing polar ice to retreat

Most lakes _____.

are in high latitudes and mountain regions

Lakes _____.

are recharged by precipitation

fetch

distance over which wind blows without interruption or change of direction

Total global precipitation is _________ total global evaporation.

equal to

Glaciers _____.

form when snow compresses into ice

Which of the following is the largest source of available freshwater?

groundwater

The water in the Dead Sea has a salinity of 300 ppt. The water _____.

has 300 grams of salt per 1000 grams of sea water

Where is 70% of Earth's fresh water stored?

in glaciers

During a rainstorm, water seeps into the ground. This process is called _____.

infiltration

The Kuroshio Current _____.

is the largest current in the Pacific Ocean

ice cap

large, dome-shaped mass of ice

gyre

large, rotating current loops caused by the Coriolis effect

Which of the following materials is most porous?

loosely packed gravel

Most lakes were formed from _____.

melting glaciers

Alberta dives deep into the ocean on a scuba trip. As she descends into the ocean, the water becomes _____.

more dense

Water in the deep ocean is _________ water in the surface layer.

more dense than

impermeable

not allowing a fluid to pass through

How freely water moves into and through soil or rock is called _____.

permeability

evaporation

process by which liquid water changes into a gas

infiltration

process by which precipitation soaks into the ground

The water table _____.

rises and falls with precipitation and use

Winds blow in curved loops because of Earth's _____.

rotation

About 97% of Earth's water is _____.

saltwater

The hydrogen side of a water molecule is _____.

slightly positive

In the Northern Hemisphere, gyres _____.

spin clockwise

Most of Earth's freshwater is _____.

stored as ice

The water table is _____.

the top layer of the saturated zone

The moon's gravitational pull causes _____.

tides

In the water cycle, _____.

total evaporation equals total precipitation

Plants add water to the atmosphere through _____.

transpiration

Tiny creeks or streams which merge to form a river are called:

tributaries

Earth's water is _____.

unequally distributed

Surface currents are driven by _____.

wind

Surface currents are generated by _____.

wind

Select all of the answers that apply. The strength of a wind-generated wave depends on _____.

- length of fetch area - wind speed

Select all of the answers that apply. George goes on a deep ocean dive. As he dives deeper into the ocean, _____.

- temperature decreases - pressure increases - salinity increases

Julio blows air across his hot bowl of soup. The tiny ripples he creates are similar to _____.

wind-generated waves

Water changing from a liquid to a gas is _____.

evaporation

In landlocked lakes, water is discharged primarily through _____.

evaporation

How much of Earth's freshwater is found underground?

30%

Which of the following statements is true?

Groundwater is the largest available source of freshwater.

Which of the following statements is true?

The Arctic ice cap floats on top of the Arctic Ocean.

Rip currents are caused by _____.

breaks or changes in longshore currents

Rivers _____.

change the landscape through erosion


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