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WorksheetsMixtures and Solutions
Total questions: 35
Worksheet time: 19mins
Name
Class
Date
1.
A mixture of three types of pasta would be easy to separate because all of the pastas--
a)
are less dense than water
b)
are solids
c)
have the same mass
d)
are attracted to a magnet
2.
Why do you have to shake oil and vinegar salad dressing before you can use it?
a)
Vinegar and oil both contain water
b)
Vinegar and oil easily form a solution
c)
Vinegar and oil have different densities
d)
Vinegar and oil are both liquids
3.
Theresa mixes a white powder into a beaker of water. The powder disappears. Why?
a)
solubility
b)
density
c)
conductivity
d)
mass
4.
Mrs. Garcia lifts a hot metal pan from the oven using oven mitts. Why are the oven mitts necessary?
a)
The metal pan creates thermal energy
b)
The metal pan insulates thermal energy
c)
The metal pan conducts thermal energy
d)
The metal pan reduces thermal energy
5.
Definition: the ability to dissolve
a)
solution
b)
dissolve
c)
solute
d)
solubility
6.
How can we separate salt grains from pepper grains?
a)
use a pair of tweezers
b)
run a magnet through the mixture
c)
put the mixture in water and filter out the pepper
d)
use a strainer with a fine wire screen
7.
Which list contains only substances that dissolve?
a)
oil, sugar, pepper
b)
sugar, salt, koolaid mix
c)
sugar, oil, carrots
d)
butter, carrots, cooking oil
8.
Which property of the material wrapping the jars are they trying to investigate in this table?
a)
state of matter
b)
ability to conduct electricity
c)
thermal energy production
d)
thermal energy insulation
9.
Paul evaporated a solution containing 15 grams of salt in 75 mL of water. How much salt is left behind?
a)
75
b)
15
c)
90
d)
5
10.
Is pepper soluble in water?
a)
Yes
b)
No
11.
What tool would best help you sort iron bolts from aluminum bolts?
a)
beaker
b)
spring scale
c)
pan balance
d)
magnet
12.
How do you know if a mixture is a solution?
a)
something in the mixture dissolved
b)
the physical properties don't change
13.
Based on this data, which would be best when cooking?
a)
copper
b)
gold
c)
aluminum
d)
tin
14.
How can you clean foam cups out of a wishing fountain?
a)
They can be washed away when the fountain is drained.
b)
The foam cups are less dense, so they can be removed from the top of the water with a net.
c)
They are less dense, so they can be picked off the bottom of the fountain.
15.
If the mass of the beaker and liquid was 200 grams, how much was the mass of just the liquid? (beaker = 150g)
a)
200
b)
350
c)
50
d)
150
16.
Is aluminum magnetic?
a)
Yes
b)
No
c)
Maybe
d)
I don't know
17.
If you stir together oil and water, then let it sit for five minutes, what will happen?
a)
They stay mixed.
b)
The oil will sink to the bottom of the water.
c)
The water will sink below the oil.
d)
There will be little droplets of oil suspended throughout the water.
18.
Does salt dissolve in water?
a)
Yes
b)
No
19.
Definition: for a substance to become so small it is invisible to the eyes and spread out evenly
a)
mixture
b)
combine
c)
solvent
d)
dissolve
20.
A tablespoon of substance is added to water and it disappears. What can we tell about the substance?
a)
It is less dense than water.
b)
It heated the water.
c)
It flavored the water.
d)
It dissolved in the water.
21.
A worker pressed large pieces of salt into this concrete sidewalk while it was wet. When it dried, he washed the sidewalk. What happened to the salt?
a)
it evaporated into a gas
b)
it turned into concrete
c)
it dissolved in the water
d)
it turned into a solid
22.
At what temperature did the water outside of the school building begin to change to ice?
a)
100*C
b)
0*C
c)
32*C
d)
15*C
23.
How do you separate a mixture of salt, water, and sand?
a)
1. evaporate the liquid 2. heat the solid mixture
b)
1. pour it into a bowl 2. use a hand lens
c)
1. heat the mixture 2. cool the liquid
d)
1. filter the sand 2. evaporate the liquid
24.
Definition: the substance that will be dissolved, like salt or sugar
a)
solution
b)
solute
c)
solvent
d)
dissolve
25.
Does sand dissolve in water?
a)
Yes
b)
No
26.
Felicity added a little sugar to her bowl of cheerios and milk. Which part of this mixture is the solvent?
a)
the bowl
b)
the milk
c)
the sugar
d)
the cheerios
27.
Felicity added a little sugar to her bowl of cheerios and milk. Which part of this mixture is the solute?
a)
the bowl
b)
the milk
c)
the sugar
d)
the cheerios
28.
A student combined powdered paint with water to make a blue liquid paint mixture. What happened to the mixture once it dried?
a)
The container was empty after the mixture evaporated into the air.
b)
The paint evaporated, leaving only clear water in the container.
c)
The water evaporated, leaving only a dry blue solid in the container.
d)
The liquid paint mixture was lighter in color after some water evaporated.
29.
Which of these is not soluble in water?
a)
oil
b)
salt
c)
honey
d)
sugar
30.
Definition: the substance the matter will be dissolved in (ex: water)
a)
solvent
b)
solute
c)
dissolve
d)
solution
31.
10g of four different powdered solids
Four different beakers
100 mL of water to each beaker
Each one sits for half an hour
Which question is the student trying to answer with this investigation?
Four different beakers
100 mL of water to each beaker
Each one sits for half an hour
Which question is the student trying to answer with this investigation?
a)
At what water temperature do the substances dissolve?
b)
How much water is needed to cause a substance to change state?
c)
What causes a substance to sink when put in water?
d)
Which substances dissolve in water?
32.
Which property of the sugar remains the same when the sugar is in the tea solution?
a)
The taste of the sugar
b)
The size of the sugar crystals
c)
The color of the sugar
d)
The texture of the sugar
33.
Definition: to take apart where the substances are not touching or connected
a)
separate
b)
mix
c)
dissolve
d)
combine
34.
Which one is NOT a solution?
a)
saltwater
b)
koolaid
c)
dirty water
d)
lemonade
35.
Which one is NOT a mixture?
a)
trail mix
b)
sand and iron filings
c)
three different types of beads
d)
sweet tea
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