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