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