WorksheetsChemical Reactions & Mixtures
Total questions: 12
Worksheet time: 11mins
Name
Class
Date
1.
Making a mixture results in ___________________ only.
a)
chemical reactions
b)
separate parts
c)
physical changes
d)
two subtances
2.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
d)
mixtures
3.
Salad is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
4.
Coloured water is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
5.
What is a chemical change?
a)
change in the state of matter
b)
change in the size of a substance
c)
change in the shape of a substance
d)
change that results in the formation of new chemical substances
6.
What is a physical change?
a)
It creates a new substance
b)
Change that does not change their chemical composition
c)
It changes atomic bonds
7.
You know you a chemical reaction has occurred if
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
8.
When materials combine to form new compounds it is a chemical change. Which example is a chemical change?
a)
baking powder fizzing
b)
water boiling
c)
ice melting
d)
sugar cube dissolving
9.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
10.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
11.
Which option below is NOT evidence of a chemical reaction?
a)
an odor is detected
b)
bubbles appear
c)
Light is emitted from a flame
d)
solid dry ice turns to a gas
12.
What are the two main parts of a chemical reaction? (Choose 2)
a)
reactants
b)
mixtures
c)
products
d)
compounds
100 %
