NEW
Font size
S
M
L
XL
WorksheetsScience of Foods Review
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
______________ caused the dirty penny to become clean.
a)
a double boiler
b)
cream of tartar
c)
the combination of ingredients
d)
simple sugars
2.
To create the sugar glass you ________________________the sugar _______________________ water.
a)
extract, from
b)
dissolve, in
c)
fry, over
3.
______________________ hinders crystallization by snipping the bonds of glucose molecules that bind to fructose molecules.
a)
cream of tartar
b)
buttermilk
c)
vinegar
d)
salt
4.
The two pans were used as a ________________________________ to melt the delicate chocolate without burning it.
a)
deep fryer
b)
double boiler
c)
steamer
d)
food processor
5.
______________________ has the ability to alter the way our sensory apparatus perceives flavor, heightening and intensifying the sweetness and other subtle flavors.
a)
menthol
b)
wasabi
c)
sugar
d)
salt
6.
The amount of _________________________ in your body is enough to make 2 small nails.
a)
calcium
b)
iron
c)
magnesium
d)
zinc
7.
Glucose and fructose are considered ________________ __________________.
a)
simple sugars
b)
whole grain sugars
c)
organic sugars
d)
complex sugars
8.
Rapid freezing preserves nutrients in food.
a)
True
b)
False
9.
The cornstarch and water mixture can act as both a solid and a vapor.
a)
True
b)
False
10.
The Edible Slime is completely safe to eat.
a)
True
b)
False
11.
The meringue was made by denaturing the protein structure of the egg whites through beating them and adding sugar.
a)
True
b)
False
12.
In the Air Pressure Can Crusher Experiment the water in the can turned from a liquid to a vapor (gas).
a)
True
b)
False
13.
Liquid nitrogen causes the fat and the water particles to grow extremely large.
a)
True
b)
False
14.
Meringue is foam consisting of many tiny bubbles of air that work as an insulator.
a)
True
b)
False
15.
Hydrophilic means water loving and hydrophobic means water strongly disliking.
a)
True
b)
False
16.
Density is the measure of how much “stuff” is packed into a specific space.
a)
True
b)
False
17.
In the sugar rainbow, the solutions with more sugar added had a higher density.
a)
True
b)
False
18.
Density explains why the liquids were able to stack atop each other in the density tower and the sugar rainbow experiments.
a)
True
b)
False
19.
The raw egg sank to the bottom of the glass of regular tap water because the water had greater density than the egg.
a)
True
b)
False
20.
Objects less dense than water sink, and those more dense than water float.
a)
True
b)
False
21.
Most regular (12 oz) sodas contain about 39 grams of sugar, or about 18 sugar packets in a can.
a)
True
b)
False
22.
Liquids that weigh more have a higher density and will sink below the liquids that weigh less and have a lower density.
a)
True
b)
False
23.
Three important forces act on rockets; thrust, drag and weight.
a)
True
b)
False
24.
In the “dancing spaghetti” experiment tiny bubbles of carbon dioxide attached to the noodles making them less dense than the water surrounding them, causing them to rise.
a)
True
b)
False
25.
In the “Dancing Spaghetti” experiment, once the noodles reach the top, the bubbles pop upon exposure to the air. This makes the noodles more dense, causing them to sink.
a)
True
b)
False
26.
The famous “popping” of Pop Rocks candy is pressurized carbon dioxide gas.
a)
True
b)
False
27.
The soda explosion in the Mentos Geyser experiment was the result of carbon dioxide being released from the candies that excited the carbon dioxide molecules in the soda.
a)
True
b)
False
28.
Pressure builds up inside the film canister as carbon dioxide gas is produced by the chemical reaction between the Alka-Seltzer and the water, causing the explosion.
a)
True
b)
False
29.
Buttermilk is used in making biscuits because the butter in the liquid reacts with the base/alkaline chemicals in the baking soda to make the dough rise.
a)
True
b)
False
30.
Acids and bases are registered on a PH level
ranging from 1-14.
ranging from 1-14.
a)
True
b)
False
31.
PH is considered the concentration of either positively or negatively charged hydrogen atoms in a solution.
a)
True
b)
False
32.
When the number of positively charged hydrogen atoms increases () the PH level decreases (); number 1-6 on the PH scale = more acidic. Numbers 8-14 on the PH scale have more negatively charged hydrogen atoms; they are known as bases.
a)
True
b)
False
33.
When combining an acid with an indicator (like the red cabbage juice) the result will be a red color.
a)
True
b)
False
34.
When combining a base with an indicator (like the red cabbage juice) the result will be a blue/green color.
a)
True
b)
False
35.
Distilled water has a PH level of 7 and therefore is considered neutral.
a)
True
b)
False
36.
In the Bouncy Egg experiment; the calcium carbonate in the eggshells reacted with the acid in the vinegar resulting in the dissolved eggshells.
a)
True
b)
False
37.
The acid in lemons works well to prevent oxidation from occurring, causing enzymatic browning, ex. The apple slices were prevented from turning brown.
a)
True
b)
False
38.
Viscosity is the measurement of resistance to the flow of liquids.
a)
True
b)
False
39.
A fluid with a lower viscosity means it has a higher flow rate.
a)
True
b)
False
40.
In liquids, viscosity can be considered the thickness.
a)
True
b)
False
41.
Heat can affect a fluid by making the cohesion of the molecules weaker.
a)
True
b)
False
42.
Water is more viscous than molasses.
a)
True
b)
False
43.
Cooling can affect a fluid by making the cohesion of the molecules stronger.
a)
True
b)
False
44.
Frying foods in a pan like bacon, hash browns or sautéed onions are examples of heat conduction.
a)
True
b)
False
45.
Radiation heats through the waves of energy.
a)
True
b)
False
46.
Elephant toothpaste is a good example of an Exothermic reaction because the heat released and extended out from the reaction.
a)
True
b)
False
47.
If you were to get burned by holding the handle of a metal spoon while stirring something very hot it would be the result of heat conduction.
a)
True
b)
False
48.
Baking cookies in the oven is an example of using heat conduction because the air is circulating around the food baking.
a)
True
b)
False
49.
In the blubber glove experiment the shortening worked as an insulator to protect your hands from the extreme cold.
a)
True
b)
False
50.
We made popcorn in the microwave as a good example of heat convection.
a)
True
b)
False
Reset
