WorksheetsPhysical & Chemical Changes
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
In physical changes, substances might change in __________ but not in __________.
a)
appearance, composition
b)
volume, state of matter
c)
texture, color
d)
weight, mass
2.
What happens to atoms after a chemical change?
a)
They remain in the same place.
b)
They become bigger.
c)
They link up in different ways.
d)
They dissolve to form a mixture.
3.
Which of the following properties can change during a physical change?
a)
shape
b)
pH level
c)
flammability
d)
reactivity
4.
True or False: a physical change may produce a new substance.
a)
True
b)
False
5.
Which of the following is an example of a precipitate?
a)
liquid evaporating into gas
b)
a solid formed from a frozen liquid
c)
a chunk solid formed from two liquids combining
d)
a liquid solution that contains two substances
6.
Which of the following is an example of a physical change?
a)
sugar and oxygen reacting to produce water and carbon dioxide
b)
honey dissolving in tea
c)
a raw egg being cooked
d)
metal rusting after being left out in the rain
7.
A physical change can sometimes result in a color change. Which of the following situations show this?
a)
Milk turns yellow when it spoils.
b)
Dough becomes darker when it is baked into cake.
c)
A red candy dissolves and turns water pink.
d)
A match turns black when it is burned.
8.
Which of the following physical changes shows a change in a substance's state of matter?
a)
a piece of paper being torn in half
b)
clay being molded into a bowl
c)
an ice cube being crushed
d)
liquid water becoming steam
9.
A pH change can be evidence that --
a)
a substance has changed physically.
b)
a substance's state of matter has changed.
c)
no change has taken place.
d)
a substance has changed chemically.
10.
On a camping trip, Mrs. Benavides roasts a marshmallow in the campfire. She notices that the roasted marshmallow smells and tastes differently than the uncooked marshmallows. What change has taken place, and how does Mrs. Benavides know?
a)
a chemical change because the marshmallow changed in taste, color and smell
b)
no change because the marshmallow is not a new substance
c)
only a physical change because the marshmallow changed in size
d)
a chemical change because the marshmallow only changed in pH level
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