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WorksheetsPhysical and Chemical Changes
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
What is an example of a chemical change?
a)
a nail turning rusty
b)
metal being melted
c)
water freezing into ice
d)
boiling water turning into gas
2.
Which of the following is a chemical change?
a)
a piece of paper cut into small pieces
b)
a piece of wood burning
c)
water freezing into ice
d)
mixing sugar and water
3.
Which two substances if mixed together in a glass of water will a student be unable to easily separate from each other once the water had been evaporated?
a)
salt and sugar
b)
sugar and gravel
c)
gravel and iron filings
d)
iron filings and wood chips
4.
Roger put water in the freezer and the water turned into ice. Which type of change took place?
a)
Water underwent a chemical change.
b)
Water changed from alkaline to acidic.
c)
Water molecules changed into compounds.
d)
Water physcially changed from a liquid to a solid.
5.
Which is an example of a chemical change?
a)
baking powder fizzing
b)
water boiling
c)
ice melting
d)
sugar cube dissolving
6.
As a candle is burning, the candle wax makes a pool and dribbles down the side of the candle where it hardens again. The candle wax has undergone...
a)
a physical change
b)
a chemical change
c)
a physical and chemical change
d)
the formation of a new substance
7.
Which is an example of melting?
a)
stirring some sugar in water until you cannot see the sugar
b)
heating a pan of water until the water has evaporated
c)
heating a block of ice until the ice turns to water
d)
cooling water in the freezer until the water becomes solid
8.
Dan added a little baking soda to a beaker that contained vinegar. Bubbles started coming from the mixture as a gas was released. The gas was evidence that...
a)
the mixture was starting to boil
b)
the air in the flask contracted
c)
a chemical reaction took place
d)
the vinegar and baking soda expanded
9.
Which is an example of using chemicals and heat to make something?
a)
baking a cake
b)
making a paper airplane
c)
building a doghouse
d)
riding a bike
10.
Which is an example of a chemical change?
a)
paper being burned
b)
metal being melted
c)
a board being cut in half
d)
water being boiled
11.
A different chemical substance is formed when...
a)
a cloth is cut
b)
a cup breaks
c)
a candle burns
d)
a piece of chalk falls apart
12.
Matter is anything that has _______ and takes up space.
a)
color
b)
shape
c)
mass
d)
life
13.
The state of matter with a definite shape and volume.
a)
solid
b)
liquid
c)
gas
d)
plasma
14.
The state of matter with a definite volume but no definite shape.
a)
solid
b)
liquid
c)
gas
d)
plasma
15.
The state of matter with no definite shape or volume.
a)
solid
b)
liquid
c)
gas
d)
plasma
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