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Total questions: 12
Worksheet time: 13mins
Name
Class
Date
1.
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
2.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
3.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
4.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
5.
Which is a physical change?
a)
burning match
b)
vinegar in baking soda
c)
melting butter
d)
cooking an egg
6.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances.
b)
rusting
c)
changes affecting the form of a chemical substance, but not its chemical composition.
d)
any property that is measurable, whose value describes a state of a physical system
7.
what is the definition of chemical change?
a)
any change that results in the formation of new chemical substances.
b)
changing clothes
c)
matter cannot be created or destroyed, only change form
d)
changes affecting the form of a chemical substance, but not its chemical composition.
8.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
9.
Is sharpening a pencil a physical or chemical change?
a)
Physical
b)
Chemical
10.
Is mold growing on cheese a physical or chemical change?
a)
Physical
b)
Chemical
11.
Is milk going sour a physical or chemical change?
a)
Physical
b)
Chemical
12.
A scientist places 10 ml of water in a test tube and heat it over a Bunsen burner for 2 minutes. The liquid boils and escapes as a steam. This experiment is a good example of a:
a)
chemical change
b)
physical change
c)
chemical property
d)
physical property
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