WorksheetsChanges in Matter 4th/5th
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
A_________________happens when one substance changes into another substance.
a)
physical change
b)
product
c)
chemical change
d)
reactant
2.
A substance that is changed in a chemical reaction is called a _________________.
a)
polymer
b)
reactant
c)
physical change
d)
product
3.
A large molecule formed from smaller identical units is called a __________.
a)
reactant
b)
polymer
c)
product
d)
physical change
4.
When objects change by tearing, crushing, or melting, but do not change into different substances, a ______________has occurred.
a)
chemical change
b)
reactant
c)
physical change
d)
product
5.
The process of burning is called _____________.
a)
polymer
b)
product
c)
combustion
d)
reactant
6.
A substance that forms during a chemical reaction is called a _________________.
a)
product
b)
combustion
c)
polymer
d)
reactant
7.
A special sentence that describes what happens in a chemical reaction is called a _________________.
a)
chemical reaction
b)
chemical equation
c)
physical reaction
d)
product
8.
Which is an example of a chemical change?
a)
water freezing in a puddle
b)
a dry sponge expanding after being put in dishwater
c)
food being digested in the small intestine
d)
butter melting in a microwave oven
9.
What kind of reaction occurs when water breaks down, producing hydrogen and oxygen gases?
a)
a combination reaction
b)
a decomposition reaction
c)
a recombination reaction
d)
a replacement reaction
10.
What matter did chemist make in a lab?
a)
cotton
b)
wood
c)
silk
d)
nylon
100 %
