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WorksheetsChemical vs. Physical Reactions
Total questions: 13
Worksheet time: 16mins
Name
Class
Date
1.
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
2.
Is wood burning a physical or chemical change?
a)
Physical
b)
Chemical
3.
Is milk going sour a physical or chemical change?
a)
Physical
b)
Chemical
4.
Is mold growing on cheese a physical or chemical change?
a)
Physical
b)
Chemical
5.
Is making orange juice a physical or chemical change?
a)
Physical
b)
Chemical
6.
Is sharpening a pencil a physical or chemical change?
a)
Physical
b)
Chemical
7.
Is the formation of the grand canyon a physical or chemical change?
a)
Physical
b)
Chemical
8.
Is copper tarnishing a physical or chemical change?
a)
Physical
b)
Chemical
9.
Which of the following is a reactant
a)
CH4
b)
H2O
c)
CO2
d)
2H2O
10.
In an exothermic reaction, energy is _________.
a)
Released
b)
Absorbed
c)
Stored
d)
Doubled
11.
During Photosynthesis energy is absorbed. What kind of reaction is it?
a)
Physical
b)
Exothermic
c)
Endothermic
d)
Photothermic
12.
The Law of Conservation of Mass tells us matter can't ______________.
a)
change color
b)
change state of matter
c)
be created or destroyed
d)
change temperature
13.
Which of the following IS a clue that a chemical change has occurred?
a)
State of matter change
b)
Size Change
c)
Change in temperature
d)
Shape change
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