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WorksheetsFOSS: Mixtures and Solutions Investigation 1 Review
Total questions: 41
Worksheet time: 48mins
Name
Class
Date
1.
How can I get salt out of water after it has dissolved and formed a solution?
a)
Pour it out through a screen.
b)
You can't. It's dissolved, it's gone.
c)
Let the water evaporate, salt will remain
d)
Pour it through a filter
2.
Which is an example of a solution?
a)
Chex Mix
b)
Mixed fruit
c)
Lemonade
d)
milk and cereal
3.
What happens when I mix koolaid powder in water?
a)
It melts
b)
It boils
c)
It dissolves
d)
It evaporates
4.
Solids that are combined together but nothing dissolves
a)
mixture
b)
solid
c)
solvent
d)
solute
5.
Solutions are a type of mixture. What makes solutions different from other mixtures is....
a)
The elements in a solution react to compounds
b)
One substance dissolves in the other
c)
Two or more substances are combined
d)
There is a chemical change when combined
6.
Is trail mix a mixture or a solution?
a)
Mixture
b)
Solution
7.
Is ocean water a mixture or a solution?
a)
Mixture
b)
Solution
8.
If I added 27 grams of salt to water and separated the solution with a hot plate to evaporate the water, what amount of salt would be left behind?
a)
20 grams
b)
0 grams
c)
27 grams
d)
10 grams
9.
Which of the following is a method of separating solutions?
a)
hand seperation
b)
filtering
c)
screening
d)
evaporation
10.
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
11.
What is a substance that is dissolved in another substance?
a)
solution
b)
solute
c)
solvent
d)
compound
12.
How would you separate water and pebbles?
a)
Evaporation
b)
Screen
c)
Magnet
d)
Filter
13.
What is the best way to separate diatomaceous earth and water?
a)
Evaporation
b)
Screen
c)
Magnet
d)
Filter
14.
Knowing the particle size of the materials in a mixture help you know
a)
how much the mixture will weigh
b)
which tools to use to separate then
c)
if one of the materials will dissolve
d)
what the crystals will look like after evaporation
15.
A mixture is made with 80 mL of water and 20 g of solid. The solid disappears, the water stays clear. What is the mass of the solution now?
a)
80 g
b)
120 g
c)
100 g
d)
85 g
16.
What happens when dissolving occurs?
a)
The solid material gets bigger.
b)
Nothing will happen
c)
The solid material becomes a gas.
d)
The solid material breaks down into pieces so small you can't see them.
17.
66.5 mL =
a)
66.5 g
b)
66 g
c)
65 g
d)
62 g
18.
If a volume of water is 55 mL, its mass is
a)
45 g
b)
35 g
c)
55 g
d)
25 g
19.
A student dissolves 10 g of salt in 90 g of water. The solution is then heated on a hot plate to speed evaporation. When the water evaporates completely, how much salt will be left?
a)
10 g
b)
0 g
c)
90 g
d)
100 g
20.
What happens in an evaporation dish?
a)
Water stays with the mixture.
b)
Water becomes a solid.
c)
Water turns into water vapor and is no longer in the dish.
d)
More water appears.
21.
Sugar is a
a)
solution
b)
solvent
c)
solute
d)
mixture
22.
Water is a
a)
solution
b)
solvent
c)
solute
d)
mixture
23.
Which of the following would you use magnetic attraction to separate?
a)
iron pellets and wood chips
b)
salt and water
c)
sand and sugar
d)
large and small iron pellets from one another
24.
If I mixed together sand, salt, and iron fillings in a cup of water what would be the BEST way to separate them?
a)
filter out the salt and attract the iron filings with a magnet
b)
heat the solution and filter out the sand and salt
c)
filter out the coarse sand and iron filings. Attract the iron fillings with a magnet. Heat and evaporate water to remove salt.
d)
Attract the iron fillings with a magnet. Filter out the salt. Use evaporation to get the sand out.
25.
Which mixture could you separate by adding water and then pouring through a coffee filter?
a)
sand and salt, because the salt would dissolve and the sand would not
b)
baking soda and salt, because they both dissolve
c)
sugar and salt, because they both dissolve
d)
iron fillings and sand, because neither one dissolves
26.
Describe a solute.
a)
part of solution present in largest amount
b)
the substance that gets dissolved
c)
the substance that does the dissolving
d)
surrounds and breaks apart
27.
What is a solvent
a)
the liquid in which a solute is dissolved to form a solution.
b)
Another word for solution
c)
A thing that make drinks turn colors
d)
Its a metal molecole
28.
In this mixture, which of the following will be the solute?
a)
The water in the glass
b)
The glass that holds the final mixture
c)
The solution containing both powder and water
d)
The powder on the spoon
29.
What are the three common states of matter?
a)
solid
b)
liquid
c)
gas
d)
water
30.
Temperature has an effect on the speed a solid dissolves in water.
a)
True
b)
False
31.
Hot water makes a solid ___________________.
a)
dissolve faster
b)
dissolve slower
c)
not dissolve
32.
Solid solutes dissolve faster when it is
a)
Stirred
b)
Not Stirred
33.
The amount of matter in an object is it's _______.
a)
matter
b)
mass
c)
weight
34.
If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
a)
2 grams
b)
5 grams
c)
10 grams
d)
15 grams
35.
Ivy mixed 30 g of hot chocolate mix with 200 g of hot milk. She then added 5 marshmallows with a mass of 8 g each. Which best describes the mass of her hot chocolate?
a)
235 grams
b)
238 grams
c)
270 grams
36.
Lynne cuts up 40 g of strawberries, 50 g of cantaloupe, and 70 g of pineapple into a bowl. Which best describes the amount of fruit salad in the bowl?
a)
90 grams
b)
120 grams
c)
160 grams
37.
Robert fills an 8-lb cooler with 20 lbs of ice. After leaving the cooler in the sun for an hour, how much will the cooler and the melted ice weigh?
a)
12 pounds
b)
20 pounds
c)
28 pounds
38.
What is an extract?
a)
solvent
b)
solute
c)
solution
39.
Choose the examples of extracts
a)
soda
b)
water
c)
coffee
d)
tea
40.
Extracts contain dissolved substances that have ___________________, _________________, and __________________.
a)
color, odor, taste
b)
feeling, smell, taste
c)
color, texture, odor
41.
Mixtures can be separated by shape, size, and _______________.
a)
condensation
b)
evaporation
c)
shaking
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