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FS S6 WATER Pt 2
Test Description: Standard 6 concepts
Instructions: Answer all questions to get your test result.
1) Water is the only compound that commonly exists in these three states on Earth.
A
Solid, Liquid and Gas
B
rivers, lakes, streams
C
positive, negative, and neutral
D
Ice, water, and steam
2) Water contains these charges in each molecule.
A
acids and bases
B
polar, non-polar, ionic
C
Positive and Negative only
D
positive, negative, and neutral
3) Water molecules tend to __________ because they contain positive and negative charges.
A
push away
B
separate
C
stick
D
float
4) Water sticking to other things is called ...
A
cohesion
B
Adhesion
C
universal solvent
D
magnetic
5) Water sticking to itself is called ...
A
universal solvent
B
adhesion
C
Cohesion
D
magnetic
6) Water is called the ________________ because it dissolves more substances than any other solvent.
A
Universal Solvent
B
Solid, Liquid and Gas molecule
C
solution maker
D
positive ion
7) Water _____________ heat energy from the atmosphere.
A
increases
B
Absorbs
C
decreases
D
separates
8) __________________ power uses the kinetic energy of moving water to create electricity.
A
super
B
hydroelectric
C
electic
D
lightening
9) Solid ice ___________ in liquid water because it is less dense.
A
spreads
B
expands
C
sinks
D
floats
10) Most of the earth's water is ___________.
A
Salt Water
B
from lakes and streams
C
polluted
D
fresh water
11) _________% of the earth's water is salt water.
A
50
B
97
C
99
D
75
12) Water occurs initially on earth in the form of...
A
rain, oceans, creeks, bottles
B
rain, irrigation, rivers
C
Rivers, lakes, streams and glaciers
D
oceans, rivers, creeks
13) When water freezes, it __________.
A
gets solid
B
melts
C
expands
D
shrinks
14) Water has _____________ which allows some objects that would normally sink to float
A
electric energy
B
Surface Tension
C
dense holes
D
molecules
15) Water freezes at what temp?
A
32 degrees Celsius
B
0 degrees Fahrenheit
C
0 degrees Celcius
D
212 degrees Fahrenheit
16) Water boils at what temp?
A
212 degrees Fahrenheit
B
100 degree Fahrenheit
C
0 degrees Fahrenheit
D
32 degrees Fahrenheit
17) What types of things contaminates our water?
A
acid rain, dirt, and parasites
B
dead animals, oil, lead
C
physical, biological, and chemical pollutants
D
pesticides, and parasites
18) Most veggies retain their nutrients when cooked with which water cooking method?
A
poach
B
boil
C
steam
D
pressure cooker
19) You can always make water safe by boiling it.
A
idk
B
doesn't apply because water is safe anyway
C
true
D
false
20) a measure of the water in an item and is defined as the ratio of vapor pressure of a substance
A
water impurity
B
water contaminant
C
water pressure
D
water activity
*select an answer for all questions
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