Activity Books Understanding Water Activity Book | Page 69

Answers
Page 3
All the statements are true. All the boxes will be marked.
Page 4
All the statements are true. All the boxes will be marked.
Page 5
10 x 10 = 100
Page 6
Frozen water (polar) = 66 drops; Fresh = 33 drops
Page 7
The incomplete sentences are:

Salt in ocean water.

Animals and plants water.

Water wet.
Answers will vary; they can be:
Salt is in ocean water.

Animals and plants need (drink) water.
Water is wet.
Page 8
Water vapor condenses to form clouds.
Liquid water freezes into snowflakes. It is then a solid.
Water that flows from a faucet is liquid.
Page 9
Answers will vary. Adjectives describing liquid may
include wet, cold, warm, moist, etc.
Answers will vary for how they attempted to change ice
to liquid.
Page 15
A=24; B=5; C=6; D=8; E=12; F=11; G=15; H=18; I=4;
J=43; K=60; L=10; M=14; N=2; O-1; P=36; Q=3; R=7;
S=9; T=13; U=16; V=82; W=17; X=30; Y=21; Z=20
THE MARBLE WILL SINK; THE ICE CUBE WILL FLOAT.
ICE IS LESS DENSE THAN LIQUID WATER; A MARBLE
IS MORE DENSE.
Page 16
solid
vapor
ice
density
liquid
river
ocean
Page 18
A rainbow.
Page 20
Evaporation: B. The sun heats water. The water be-
comes vapor that rises into the atmosphere.
Condensation: D. Water vapor forms clouds. When the
clouds cool, the vapor becomes liquid.
Liquid, Ice, Vapor: F. The three states of water.
Precipitation: C. Liquid is heavier than vapor. Gravity
pulls the liquid down to Earth as rain or snow.
Runoff: A. When the rain reaches Earth it flows across
the land into lakes, steams and oceans.
Transpiration: E. Plants take in water, then “breathe” the
water out as vapor.
Page 21
The pinwheel will turn. Answers will vary. Vapor may be
described as light, airy, invisible, etc.
A change in temperature (either hotter or colder) causes
water to change form. Vapor condenses to form clouds of liquid water. Heat
from the sun evaporates the water. Precipitation: rain,
snow
Answers will contain these elements:
The sun heats the water on Earth. The water evaporates.
It turns to vapor and rises. In the atmosphere it cools and
condenses to form clouds. When the drops of water get
too heavy to stay in the air, they fall as precipitation (rain,
snow, sleet). They fall to the ground. The water either
soaks into the ground or runs off into streams and rivers.
Hydro in hydrologic cycle come from the Greek word
“hydro” meaning water. Hydrologic cycle = water cycle.
Page 13 Page 23
Page 10
Answers will vary. Adjectives describing solid may
include cold, hard, slippery, etc.
Page 11
leaves will float
salt will dissolve
an anchor will sink
Object answers will vary.
Page 14
The paper clip, by itself, will sink because it is heavier
than water. The aluminum boats float because they are
lighter than water. The boat will hold several paper clips
because the area of the boat in contact with the water
disperses the weight of the objects it contains.
The marble will sink while the ice cube will float – even if
they weigh the same. The ice cube contains air within its
shape that makes it lighter (less dense) than the marble
and water.
Answers will vary depending on location.
Page 26
Down
1. snowpack
2. basin
4. drought
6. reservoir
8. rain
Page 30
Answers will vary.
67
Across
3. flood
5. moisture
7. conservation
8. rationing
9. canals
A
N
S
W
E
R
S