WorksheetsChemical and Physical Changes Unit Review
Total questions: 59
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
A single part of a mixture or solution is called
a)
Mixture
b)
Substance
c)
Solution
d)
An item
2.
A single part of a mixture or solution is called
a)
Mixture
b)
Substance
c)
Solution
d)
An item
3.
A combination of two or more substances where each keep their own properties
a)
Mixture
b)
Solution
c)
Substance
d)
Solute
4.
To make different without changing what the material is made of such as; cutting, folding,etc.
a)
Filter
b)
Physical State
c)
Physical change
d)
Origami
5.
A mixture of one substance dissolved evenly in another
a)
Substance
b)
Mixture
c)
Sieve
d)
Solution
6.
To break down and spread out evenly in a liquid
a)
Buoyancy
b)
Dissolve
c)
Mix
7.
The ability to float in a liquid is called
a)
Surviving
b)
Treading water
c)
Swimming
d)
Buoyancy
8.
This tool is used for separating solids from liquids or coarse particles from fine particles
a)
Hands
b)
Sieve
c)
Boiling water
d)
Evaporation
9.
A material that allows liquids to pass through it, while very small solids remain behind
a)
Filter
b)
Sieve
c)
Funnel
d)
Spoon
10.
liquid to a gas; may be used to separate substances in a solution
a)
Precipitation
b)
Condensation
c)
Evaporation
d)
Freezing
11.
A tool used to separate out magnetic substances in mixtures such as iron filings
a)
Meter Stick
b)
Magnet
c)
Triple Beam Balance
d)
Tweezers
12.
Which of the following would be least effective at separating a liquid from a solid
a)
colander
b)
strainer
c)
sieve
d)
pan/boiling water
13.
Which list includes examples of only solutions
a)
fruit salad, jello and lemonade
b)
lemonade, sugar water, and salt water
c)
tea, lemonade and cookie dough
d)
m&m's and tea
14.
Which is true of both Mixtures and Solutions
a)
Molecules are mixed evenly
b)
They can both be separated
c)
Separated by evaporation
d)
Can be separated with a filter
15.
If ice is placed inside a refrigerator it will
a)
melt into a gas
b)
remain ice
c)
become water vapor
d)
melt into water
16.
When a substance begins to melt its molecules....
a)
Speed up and spread out
b)
Slow down and come together
c)
Speed up and come together
d)
Remain the same
17.
Between which two temperatures is pure water in its liquid form
a)
32 degrees Celsius and 212 degrees Farenheit
b)
0 degrees Celsius and 32 degrees Celsius
c)
0 degrees Celsius and 100 degrees Celcius
d)
0 degrees Farenheit and 100 degrees Farenheit
18.
__________ is the ability of an object to float or sink in water
a)
Solubility
b)
Relative Density
c)
Magnetism
d)
Mass
19.
When we put a substance in water and stir it to see if it dissolves we are testing for_______________________.
a)
Relative Density
b)
Solubility
c)
Mass
d)
Temperature
20.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
hot plate
d)
strainer
21.
If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?
a)
20 grams
b)
0 grams
c)
27 grams
d)
10 grams
22.
A solution is a mixture of one or more substances _________ evenly into another substance.
a)
dissolved
b)
evaporated
c)
carried
d)
split
23.
A mixture is always a solution, but a solution is NOT always a mixture.
a)
True
b)
False
24.
How would you separate a mixture of sand and salt?
a)
Mix them with water and let the water evaporate
b)
Mix them with water, pour the mixture through a sieve, then let the water evaporate
c)
Heat the sand and salt mixture for 5 minutes, then let it cool
d)
I would not do any of these because none of these options would work
25.
Which of the following is NOT a mixture?
a)
sand, salt, and rocks in a bucket
b)
trail mix made with dried fruit,
nuts, chocolate drops, and
pretzels
nuts, chocolate drops, and
pretzels
c)
water in a glass
d)
rocks and sand in the ocean
26.
Salt dissolves in water like ----
a)
Pepper dissolves in water
b)
Sugar dissolves in water
c)
Rocks dissolve in water
d)
Seeds dissolve in water
27.
A _____________________ is a type a mixture where the substances are evenly distributed throughout the mixture.
a)
solution
b)
solvent
c)
solute
d)
mixture
28.
A Mixture is a combination of substances where the original substances keep their original properties
a)
True
b)
False
29.
A solution is a special mixture formed when one substance is _____________evenly throughout the other.
a)
Dissolved
b)
Disappearing
c)
Spread Out
d)
Put
30.
What happens when water mixes with sugar?
a)
the appearance of sugar changes
b)
the shape of water changes
c)
the taste of sugar changes
d)
the state of water changes
31.
A tablespoon of a substance is added to warm water and stirred. The result was that the substance could no longer
be seen.
We can conclude from the results that the substance –
a)
is less dense that water
b)
heated the water
c)
flavored the water
d)
dissolved in water
32.
What tool would best help you sort iron bolts from aluminum bolts?
a)
b)
c)
d)
33.
Which physical property of salt would stay the same in a mixture of salt particles and water?
a)
color
b)
shape
c)
size
d)
taste
34.
Ocean water is a solution?
a)
True
b)
False
35.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
36.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
37.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
38.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
39.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
40.
Is melting ice a chemical or physical change?
a)
chemical
b)
physical
41.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
42.
Is mixing lemonade powder with water a physical or chemical change?
a)
physical
b)
chemical
43.
Is mowing the lawn a phyiscal or chemical change?
a)
physical
b)
chemical
44.
Is corroding metal a chemical or physical change?
a)
physical
b)
chemical
45.
Is bleaching your hair a physical or chemical change?
a)
physical
b)
chemical
46.
Are fireworks exploding a physical or chemical change?
a)
phyiscal
b)
chemical
47.
Is sqeezing organges to make orange juice a phyical or chemcial change?
a)
physical
b)
chemical
48.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
49.
Is pouring milk in your oatmeal a physical or chemical change?
a)
physical
b)
chemical
50.
Is burning leaves a physical or chemical change?
a)
chemical
b)
physical
51.
Is cream being whipped a physical or chemical change?
a)
physical
b)
chemical
52.
Is making salt water to gargle with a physical or chemical change?
a)
physical
b)
chemical
53.
Is burning toast a chemical or physical change?
a)
physical
b)
chemical
54.
Is melting ice cream a phyiscal or chemical change?
a)
physical
b)
chemical
55.
Is sour milk a chemical or physical change?
a)
chemical
b)
physical
56.
Is rancid butter a chemical or physical change?
a)
physical
b)
chemical
57.
Is moldy cheese a chemical or physical change?
a)
chemical
b)
physical
58.
Is spoiled meat a chemical or physical change?
a)
chemical
b)
physical
59.
Is a strong gaseous odor coming from the fridge a chemical or physical change?
a)
Chemical
b)
physical
100 %
