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Worksheetschemical vs physical
Total questions: 100
Worksheet time: 2hrs 48mins
Name
Class
Date
1.
Is a firefly lighting up a physical or chemical change?
a)
Physical
b)
Chemical
2.
Is water melting a physical or chemical change?
a)
Physical
b)
Chemical
3.
Is salt dissolving in water a physical or chemical change?
a)
Physical
b)
Chemical
4.
Is digesting your food a physical or chemical change?
a)
Physical
b)
Chemical
5.
Is a burning candle a physical or chemical change?
a)
Physical
b)
Chemical
6.
Is getting a tan a physical or chemical change?
a)
Physical
b)
Chemical
7.
Is melting iron a physical or chemical change?
a)
Physical
b)
Chemical
8.
Is a car using fuel a physical or chemical change?
a)
Physical
b)
Chemical
9.
Is bending copper wire a physical or chemical change?
a)
Physical
b)
Chemical
10.
Is steam a physical or chemical change?
a)
Physical
b)
Chemical
11.
Are hard boiled eggs a physical or chemical change?
a)
Physical
b)
Chemical
12.
Is melting butter a physical or chemical change?
a)
Physical
b)
Chemical
13.
Is adding sugar to your coffee a physical or chemical change?
a)
Physical
b)
Chemical
14.
When things burn this is a chemical reaction called COMBUSTION. What does every combustion reaction require?
a)
Hydrogen
b)
Carbon dioxide
c)
Oxygen
d)
Water
15.
Is getting sick with a fever a physical or chemical change?
a)
Physical
b)
Chemical
16.
When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?
a)
Physical
b)
Chemical
17.
If liquid nitrogen is brought to a boil, is this a physical or chemical change?
a)
Physical
b)
Chemical
18.
If a new substance is formed would this be a physical or chemical change?
a)
Physical
b)
Chemical
19.
Which type of property is the ability to conduct electricity?
a)
physical property
b)
chemical property
20.
Example for physical property
a)
odor
b)
burns in air
c)
reacts with water to create hydrogen gas
d)
rust
21.
Example for chemical property
a)
color
b)
hardness
c)
toxicity
d)
solubility
22.
Example for physical property
a)
reacts with an acid
b)
explodes
c)
flammibility
d)
taste
23.
Example for physical property
a)
melting point
b)
flammability
c)
reactivity
d)
combustion
24.
Example for chemical property
a)
malleability
b)
texture
c)
combustion
d)
sour taste
25.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
26.
A copper penny turning greenish after a few years is an example of ...
a)
Chemical Change
b)
Physical Change
27.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
28.
Which of the following IS a physical change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
29.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
30.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
31.
Is a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
32.
A change in phase ...
a)
Chemical Change
b)
Physical Change
33.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
34.
Change in size ...
a)
Chemical Change
b)
Physical Change
35.
To go back to the substances original states is not possible or you would need to use chemicals.
a)
Chemical
b)
Physical
36.
Causes a change in temperature ...
a)
Chemical Reaction
b)
Physical Reaction
37.
Causes a change in odor ...
a)
Chemical Reaction
b)
Physical Reaction
38.
Evidence of Chemical Change.
a)
New Substance
b)
Size change
c)
State change
d)
Mixture
39.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
40.
True or False: a physical change may produce a new substance.
a)
True
b)
False
41.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
42.
Is milk going sour a physical or chemical change?
a)
Physical
b)
Chemical
43.
Is mold growing on cheese a physical or chemical change?
a)
Physical
b)
Chemical
44.
Is making orange juice a physical or chemical change?
a)
Physical
b)
Chemical
45.
Is sharpening a pencil a physical or chemical change?
a)
Physical
b)
Chemical
46.
Is the formation of the grand canyon a physical or chemical change?
a)
Physical
b)
Chemical
47.
Is copper tarnishing a physical or chemical change?
a)
Physical
b)
Chemical
49.
In an exothermic reaction, energy is _________.
a)
Released
b)
Absorbed
c)
Stored
d)
Doubled
49.
In an exothermic reaction, energy is _________.
a)
Released
b)
Absorbed
c)
Stored
d)
Doubled
50.
Which is NOT a physical property?
a)
mass
b)
hardness
c)
freezing point
d)
explosiveness
51.
Which is a chemical property?
a)
potassium is a soft metal
b)
potassium is a silver color
c)
potassium is a solid at room temperature
d)
potassium will react with water producing heat
52.
Which is a physical change?
a)
pennies turn green in water
b)
sugar dissolving in water
c)
charcoal gives off heat when burned
d)
baking soda & vinegar bubble
53.
All of these are chemical properties EXCEPT
a)
reactivity
b)
flammablility
c)
corrosiveness
d)
density
54.
Which is NOT a physical property of water?
a)
sugar dissolves in it
b)
it decomposes into hydrogen & oxygen
c)
its colorless
d)
its boiling point is 1000C
55.
Which are chemical processes?
a)
rusting of a nail
b)
freezing of water
c)
compression of oxygen gas
d)
boiling of water
56.
Which of the following is extensive?
a)
viscosity
b)
melting point
c)
density
d)
mass
57.
Sublimation is a
a)
chemical change
b)
physical change
58.
A physical change is...
a)
a change that doesn't change the identity
b)
a change that makes something new.
c)
a chemical reaction
59.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
60.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
61.
A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?
a)
Texture
b)
Temperature
c)
Shape
d)
Mass
62.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
63.
Change in color is a physical change.
a)
True
b)
False
64.
A change where one or more new substances are created.
a)
Physical Change
b)
Chemical Change
65.
Change in density is a physical change.
a)
True
b)
False
66.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
67.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
68.
Which of these is a result of a chemical change?
a)
A mixture
b)
A solution
c)
A new substance
d)
Melting or freezing
69.
Which of these is a result of a physical change?
a)
A new odor
b)
A new gas
c)
A new chemical substance
d)
A solution
70.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
71.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
72.
A change where one or more new substances are created.
a)
Physical Change
b)
Chemical Change
73.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
74.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
75.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
76.
Which of the following is not a chemical property?
a)
rusting
b)
boiling
c)
rotting
d)
burning
77.
Which of the following is a physical property?
a)
melting point
b)
flammability
c)
ability to rust
78.
Which of the following properties is a physical property?
a)
magnetism
b)
reaction
c)
flammability
d)
combustion
79.
Which of the following is a chemical property of water?
a)
Reacts with pure sodium
b)
Boils at 100 oC
c)
Is liquid at room temperature
d)
Has a density of 1 gm/mL
80.
Which type of property is the ability to conduct electricity?
a)
physical property
b)
chemical property
81.
Solubility is the
a)
ability to be scratched
b)
ability to be hammered into thin sheets
c)
how shiny it is
d)
ability to dissolve
82.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
83.
Logs changing shape
a)
physical change
b)
chemical change
84.
burning
a)
physical change
b)
chemical change
85.
burnt
a)
chemical change
b)
physical change
c)
thermal energy
86.
matter changed is state
a)
physical change
b)
chemical change
87.
after 3 substances are mixed, an odor emits
a)
chemical change
b)
physical change
c)
thermal energy is used
88.
temperature changes after a mixture is made
a)
physical change
b)
chemical change
c)
solution is made
89.
ice melting in hot tea
a)
chemical change
b)
physical change
90.
heat produced
a)
chemical change
b)
physical change
91.
Water freezing into ice is an example of a...
a)
Physical Change
b)
Chemical Change
92.
Melting butter to pour over popcorn is a
a)
Chemical change
b)
Physical change
93.
Water that is heated and changed to steam is a
a)
Physical change
b)
Chemical change
94.
Frying an egg is an example of a
a)
Chemical change
b)
Physical change
95.
Cutting an apple into slices is an example of
a)
Physical Change
b)
Chemical Change
96.
A change in temperature observed: baking soda + vinegar
a)
Physical Change
b)
Chemical Change
97.
An ice cube melting from the heat of your hand
a)
Physical Change
b)
Chemical Change
98.
A piece of magnesium metal is cut
a)
Chemical change
b)
Physical Change
99.
Grass growing in a lawn
a)
Chemical Change
b)
Physical Change
100.
A tire is inflated with air.
a)
Chemical Change
b)
Physical Change
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