WorksheetsMatter Pre-Assessment 5th Gr (CND)
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
Which is the correct definition for molecules?
a)
a thing that is composed of two or more separate elements
b)
the basic unit of a chemical element.
c)
a group of atoms bonded together
d)
a type of element
2.
Which is NOT an example of a compound?
a)
Water
b)
Salt
c)
Helium
3.
Salad dressing is a mixture.
a)
True
b)
False
4.
Is air a compound or a mixture?
a)
Mixture
b)
Compound
c)
Neither
d)
It is a compound and a mixture
5.
All of these are examples of elements EXCEPT-
a)
Helium
b)
Carbon
c)
Water
d)
Sodium
6.
Is the image shown a mixture or a compound?
a)
Compound
b)
Mixture
7.
Which is a compound in the image?
a)
A
b)
B
c)
C
d)
E
8.
Potassium is a compound.
a)
False
b)
True
9.
When two or more elements combine, they are called mixtures.
a)
True
b)
False
10.
Joe's little brother finds a balloon in his backyard. The helium in the balloon is a-
a)
Compound
b)
Atom
c)
Element
d)
Mixture
11.
Joe sees salt on the counter. What is the salt?
a)
Compound
b)
Mixture
c)
Atom
d)
Element
12.
Which is the correct definition of a mixture?
a)
a substance made by mixing other substances together.
b)
When two or more elements combine to form a new substance
13.
Which is the correct definition for an atom?
a)
a substance made by mixing other substances together
b)
When two or more elements combine to form a new substance
c)
the basic unit of a chemical element.
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