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FS S6 Water Pt 1
Test Description: Standard 6 concept review
Instructions: Answer all questions to get your test result.
1) Water is this type of molecule, which means it has charged poles and likes to bond...
A
non-polar
B
polar
C
thot
D
hydrophobic
2) refers to force between molecules at the outside edge of a substance
A
surface tension
B
covalent bond
C
water activity
D
atmospheric pressure
3) Which of the following is NOT a function of water in cooking?
A
supply vitamins and minerals
B
universal solvent
C
heat medium
D
freezing agent
4) These have a pH scale rating between 0 and 6.9
A
neutral items
B
alkaline items
C
bases
D
acids
5) these have a pH scale rating between 7.1 and 14
A
organic items
B
acids
C
neutral items
D
bases
6) which is NOT a natural phase of water?
A
gas
B
solid
C
liquid
D
plasma
7) term describing substances other than water that is in water
A
solvents
B
impurities
C
ions
D
foreign agents
8) 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
9) You can always make water safe by boiling it to kill the contaminants
A
true
B
false
10) A property of water is cohesion. This means...
A
water sticks to other non-water molecules
B
water repels other types of molecules
C
acid rain is produced during the water cycle
D
water sticks to other water molecules
11) A property of water is adhesion. This means...
A
water sticks to other water molecules
B
water repels other types of molecules
C
water sticks to other non-water molecules
D
acid rain is produced during the water cycle
12) A property of water is that it dissolves many substances. The term for this is...
A
universal studios
B
acidity
C
universal solvent
D
universal solution
13) A property of water is that it transfers heat energy. This term for this is...
A
heat mode
B
heat medium
C
heat transference
D
heat mean
14) What factors does water influence in food?
A
smell, taste, and sound
B
acidity and alkalinity
C
taste, texture, and appearance
D
water activity, static electricity, and acidity
15) this term means the height above the earth and also affects cooking times and temps...
A
attitude
B
atmospheric pressure
C
altitude
D
sea level
16) the point at which a substance changes from a liquid into a gas
A
altitude point
B
bond release point
C
boiling point
D
phase change point
17) Thirst does not occur until...
A
our body's metabolism speeds up
B
our body is already in short supply of food
C
our body is already in short supply of water
D
our body is too full of water molecules
18) pH in the word pH scale, basically stands for...
A
power of (or potential of) hydrogens
B
point of hydration
C
partial hydrogen content
D
polar hydrogens
19) What 2 substances are commonly used to affect water's freezing point and boiling point?
A
acids and bases
B
fats and carbohydrates
C
ice and heat
D
salt and sugar
20) Which of the following is NOT a type of contaminant of water?
A
physical
B
cognitive
C
biological
D
chemical
*select an answer for all questions
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