Earth Science: The Water Planet, Book H

Chapter 1: Water

Water

1
When water is freezing, the temperature __________.
A)rapidly decreases
B)slowly decreases
C)does not change
D)slowly increases
2
Because of water's __________, it cools more slowly than sand.
A)calories
B)density
C)specific heat
D)polarity
3
The human body is nearly __________ percent water.
A)70
B)90
C)20
D)50
4
Which of the following statements about water is true?
A)Warm water is less dense than cold water.
B)Cold water has fewer molecules per unit of volume than warm water.
C)Warm water has more molecules per unit of volume than cold water.
D)Cold water is less dense than warm water.
5
Wells are drilled into underground __________.
A)pockets
B)rocks
C)aquifers
D)streams
6
Which of the following is an example of density?
A)4.3° C
B)4.3 g/cm3
C)4.3 cm3
D)4.3 g
7
Approximately __________ percent of Earth's water is freshwater available for human use.
A)99
B)90
C)one
D)ten
8
Plants depend on __________ to grow.
A)surface water
B)soil water
C)groundwater
D)aquifers
9
Water in gas form is called __________.
A)liquid
B)vapor
C)solid
D)ice
10
About 47 percent of the water in the United States is used for __________.
A)household use
B)agriculture
C)transportation
D)industry
11
Atmospheric water vapor helps keep Earth warm by __________.
A)moving energy around
B)producing clouds
C)absorbing solar energy
D)reflecting solar radiation
12
Water found underground in layers of rock and sediment is called __________.
A)an aquifer
B)surface water
C)a reservoir
D)groundwater
13
Mulching the ground around plants and installing drip tubes above plant roots are examples of conservation methods used in __________.
A)industry
B)agriculture
C)transportation
D)mining
14
Seventy-seven percent of Earth's freshwater is __________.
A)in rivers
B)underground
C)in lakes
D)ice
15
Water can form drops because of __________.
A)capillary action
B)specific heat
C)density
D)cohesion
16
Using less water when you shower is an example of water __________.
A)flow
B)conservation
C)irrigation
D)reuse
17
Water returns to the atmosphere by the process of __________.
A)radiation
B)precipitation
C)condensation
D)evaporation
18
Oil floats on water because it is __________.
A)more dense
B)lighter
C)less dense
D)heavier
19
Which form of water has the lowest density?
A)ice
B)liquid
C)vapor
D)solid
20
Heat is measured in units called __________.
A)meters
B)liters
C)degrees
D)calories
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