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WorksheetsPure substances
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following is a pure substance?
a)
Water
b)
Salad
c)
Chocolate milk
d)
All of them
2.
What is matter?
a)
Anything that has mass and occupies space
b)
Anything that has mass
c)
Anything that is made of air
d)
ALL of them
3.
Miss Pamela is thirsty and she prepares a lemonade. This is an example of a:
a)
Pure substance
b)
Mixture
4.
A mixture can be separated into its components.
a)
True
b)
False
5.
A pure substance has different physical properties.
a)
True, it depends
b)
False, it always has exact physical properties.
6.
The smallest particle of matter that makes up an element and a compound?
a)
Element
b)
Chemical
c)
Atom
d)
Substance
7.
Examples are water (H2O) and carbon dioxide (CO2).
a)
elements
b)
compounds
8.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
9.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.
a)
Chemical Change
b)
Physical Change
10.
A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?
a)
Cutting a piece of paper with scissors.
b)
Folding a piece of paper into an airplane.
c)
Ripping a piece of paper with their hands.
d)
Burning a piece of paper with a match.
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