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WorksheetsWater and Earth's Processes
Total questions: 29
Worksheet time: 16mins
Name
Class
Date
1.
Approximately what percentage of Earth's water is SALT water?
a)
97 %
b)
71%
c)
30%
d)
3%
2.
Water that falls to Earth as rain, snow, sleet or hail is called
a)
condensation
b)
evaporation
c)
precipitation
d)
transpiration
3.
The total amount of water on Earth
a)
is becoming greater
b)
stays about the same
c)
is becoming less
d)
depends on the weather
4.
Water that fills the cracks and spaces in underground soil and rock layers is called
a)
salt water
b)
rainwater
c)
groundwater
d)
water vapor
5.
The three steps of the water cycle are...
a)
evaporation, abrasion, and precipitation
b)
irrigation, precipitation, and conservation
c)
evaporation, condensation, and precipitation
d)
saturation, evaporation, and liquification
6.
Salinity is the measure of which of these in water?
a)
carbon dioxide
b)
oxygen
c)
dissolved salts
d)
sand
7.
What is the most abundant salt in sea water?
a)
sodium chloride
b)
magnesium chloride
c)
calcium chloride
d)
potassium chloride
8.
Which of the following areas in the ocean is likely to have the lowest salinity?
a)
a warm, tropical sea
b)
the cold Arctic Ocean
c)
a bay at the mouth of a big river
d)
deep parts o the Pacific Ocean
9.
Which of these gases is about 60 times more plentiful in the ocean than it is in the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
carbon monoxide
d)
helium
10.
The growth of algae in ocean water is limited by their need for...
a)
warm ocean currents
b)
carbon dioxide and sunlight
c)
dissolved oxygen
d)
low salinity
11.
In which zone is ocean temperature most affected by the weather?
a)
transition zone
b)
deep zone
c)
surface zone
d)
polar zone
12.
As you descend through the water column,...
a)
temperature decreases
b)
pressure decreases
c)
light increases
d)
density decreases
13.
Which process is most important to the water cycle?
a)
flooding
b)
erosion
c)
evaporation
d)
farm irrigation
14.
Ocean water is different from freshwater in that it has
a)
a higher temperature
b)
a lower temperature
c)
a higher concentration of sodium chloride
d)
a higher concentration of silicon dioxide
15.
The salts in the ocean comes from
a)
weathering and erosion of rocks
b)
acid rain
c)
particles falling from space
d)
organisms that live in the ocean
16.
Tropical seas have a high rate of evaporation. Because of this, the water in tropical seas will have higher
a)
wave crests
b)
amounts of algae
c)
daily temperatures
d)
salt concetrations
17.
During the water cycle, when water vapor changes to liquid water, it is called
a)
evaporation
b)
condensation
c)
freezing
d)
boiling
18.
Only 3% of the water on Earth is freshwater. About 60% of that freshwater is NOT avaible for man's use. Why is this?
a)
it is frozen
b)
it is polluted
c)
it is too salty
d)
it is in an aquifer
19.
The energy for the water cycle originally comes from the
a)
sun
b)
clouds
c)
salinity
d)
ice
20.
Most of Earth's freshwater is in the form of
a)
clouds
b)
ice
c)
rocks
d)
dirt
21.
During the condensation phase of the water cycle, cool air and dust particles are necessary for the formation of
a)
ice
b)
clouds
c)
salt
d)
orange juice
22.
Evaporation increases the ___ of sea water, since the salt is left behind as the water evaporates.
a)
salinity
b)
plant life
c)
temperature
d)
animals
23.
In the water cycle, energy from the sun causes water to
a)
condense
b)
freeze
c)
evaporate
d)
boil
24.
Identify the step in which water changes from liquid to gas.
a)
rain falls onto Earth's surface
b)
surface water runs into the ocean
c)
clouds form
d)
evaporation from lakes, rivers, plants, soil and ocean
25.
During which part of the water cycle does water return to Earth?
a)
runoff
b)
evaporation
c)
precipitation
d)
condensation
26.
Where on Earth's surface does most evaporation occur and most precipitation fall?
a)
plants and soil
b)
the oceans
c)
the mountains
d)
lakes and streams
27.
Water that seeps through the soil from runoff, lakes, ponds, and rivers is called
a)
groundwater
b)
transpiration
c)
precipitation
d)
condensation
28.
Identify the step of the water cycle that may cause the greatest erosion on Earth's surface?
a)
evaporation
b)
groundwater
c)
surface runoff
d)
condensation
29.
When ice forms in the oceans, what happens to the water found directly underneath the newly formed ice?
a)
it becomes colder
b)
it becomes warmer
c)
it stays the same
d)
it becomes more salty
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