wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Elements, Compounds, and Mixtures

Total questions: 50

Worksheet time: 31mins

Name
Class
Date
1.

DIFFERENT kinds of atoms chemically bonded to form a substance are called

a)

Mixture

b)

Element

c)

Compound

d)

Substance

2.

This contains a variety of elements and compounds that ARE NOT chemically combined.

a)

Water

b)

Mixture

c)

Elements

d)

Compounds

3.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
4.
A compound is made of ________ atoms. 
a)
big 
b)
similar 
c)
different 
5.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
6.
Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
7.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
8.

In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

a)

I

b)

II

c)

III

d)

IV

9.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
10.

Which statement identifies why oxygen is classified as a pure substance and air is classified as a mixture?

a)

Oxygen is more reactive than air.

b)

Oxygen has a higher density than air.

c)

Oxygen goes under a phase change, whereas air is always a gas.

d)

Oxygen contains only one substance, but air contains several substances.

11.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
12.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
13.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
14.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of two elements
15.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
16.
The blue numbers in the image below are called ___________.
a)
compounds
b)
coefficients
c)
subscripts
d)
chemical formulas
17.
The horizontal rows on the periodic table are known as
a)
periods.
b)
atoms.
c)
groups or families.
d)
valence electrons.
18.
Vertical columns in the periodic table are called _________ of elements and have similar properties. 
a)
groups
b)
periods
19.
Pizza
a)
Heterogeneous
b)
Homogeneous
20.
Stainless steel
a)
Heterogeneous
b)
Homogeneous
21.
Soup
a)
Heterogeneous
b)
Homogeneous
22.

Each element has a place in an arrangement called the ____________________________________.

a)

Elements Table

b)

Elementary Table

c)

Kitchen Table

d)

Periodic Table of the Elements

23.
DIFFERENT kinds of atoms chemically combined to form a substance are
a)
Mixture
b)
Element
c)
Compound
d)
Substance
24.
This contains a variety elements and compounds that ARE NOT chemically combined.
a)
Water
b)
Mixture
c)
Elements
d)
Compounds
25.

This is made up of one or more of the SAME kind of atom

a)

Element

b)

Mixture

c)

Compound

d)

Matter

26.

Which contains only elements?

a)

A

b)

B

c)

C

d)

D

27.

Which contains only elements (no compounds)? (Choose all)

a)

A

b)

B

c)

C

28.

Which is a heterogeneous mixture? (Choose all)

a)

1

b)

2

c)

3

d)

4

29.
Are there any compounds on the periodic table 
a)
yes there are many 
b)
no because only elements are on the periodic table
c)
I think they are?
30.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
31.
_____ small particles that make up most types of matter on Earth.
a)
compounds
b)
atoms
c)
mixtures
d)
elements
32.
These can only be separated by chemical means. 
a)
element 
b)
compound 
c)
mixture 
d)
stuff 
33.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
34.
The air is a _________. 
a)
element 
b)
mixture 
c)
compound 
d)
energy 
35.
The things in a mixture always retain their........
a)
smell properties 
b)
physical and chemical properties 
c)
shape 
d)
color 
36.
Compounds contain a _____ set of elements.
a)
fixed
b)
random 
c)
sweet 
d)
inaccurate 
37.
These are mixtures that are the same throughout. 
a)
homogeneous mixtures 
b)
heterogeneous mixtures 
c)
mixed mixtures 
38.
These are mixtures that are not the same throughout. 
a)
homogeneous mixtures 
b)
heterogeneous mixtures 
c)
solutions 
d)
water 
39.
The things that make up a mixture ________ their individual properties. 
a)
lose 
b)
share 
c)
retain 
d)
alter 
40.
A compound is made of ________ atoms. 
a)
big 
b)
similar 
c)
different 
41.

Carbon is a(n) ______

a)

compound

b)

element

c)

mixture

42.
What is H2SO4 
 made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
43.

Examples are diamonds (C) and Uranium (U)

a)

elements

b)

mixtures

c)

compounds

44.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
45.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
46.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements & Compounds
d)
Mixture of Compounds
47.
Classify the picture with the correct label.
a)
Compounds
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements & Compounds
48.
Classify the picture with the correct label.
a)
Mixture of Elements
b)
Compound
c)
Mixture of Compounds
d)
Element
49.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Compounds
d)
Mixture of Elements
50.
Classify the picture with the correct label.
a)
Mixture of Compounds
b)
Mixture of Elements
c)
Compound
d)
Mixture of Elements & Compounds

Similar Resources on Wayground

Elements, Compounds, and Mixtures

45 questions

Elements, Compounds, and Mixtures

quiz

Worksheet

•

KG - University

Chemical Equations

55 questions

Chemical Equations

quiz

Worksheet

•

6th - 7th Grade

Y9 Earth and Atmosphere

48 questions

Y9 Earth and Atmosphere

quiz

Worksheet

•

5th - 8th Grade

Chemistry of Matter

52 questions

Chemistry of Matter

quiz

Worksheet

•

7th - 8th Grade

8th grade science final review

54 questions

8th grade science final review

quiz

Worksheet

•

7th - 8th Grade

Atoms & Periodic Table

47 questions

Atoms & Periodic Table

quiz

Worksheet

•

6th - 9th Grade

Acids and Alkalis

45 questions

Acids and Alkalis

quiz

Worksheet

•

7th - 9th Grade

Chemical and Physical Changes

50 questions

Chemical and Physical Changes

quiz

Worksheet

•

7th Grade