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