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Worksheets

Pure Substances and Mixtures

Total questions: 25

Worksheet time: 28mins

Name
Class
Date
1.

 Steel 

a)

 Heterogeneous 

b)

 Homogeneous 

c)

 Compound 

d)

Element

2.

 Table Salt (NaCl) 

a)

 Heterogeneous 

b)

 Homogeneous 

c)

 Compound 

d)

 Element 

3.

 Orange juice with pulp

a)

 Homogeneous 

b)

 Heterogeneous 

c)

Compound

d)

Pure Substance

4.

 Copper 

a)

 Homogeneous 

b)

 Heterogeneous 

c)

Compound

d)

Element

5.

Ice water

a)

 Homogeneous 

b)

 Heterogeneous 

c)

 Element 

d)

 Compound

6.

Mixtures: matter that is always made up of the same combination of atoms.

Elements and compounds can both be considered pure substances.

a)

True

b)

False

7.

Heterogeneous: A mixture in which the substances that make up the mixture are not evenly mixed.

a)

True

b)

False

8.

Compounds are two or more substances chemically bonded together.

a)

True

b)

False

c)

Depends on the compound

d)

Compounds are not chemically bonded together

9.

Sweet tea

a)

 Heterogeneous 

b)

 Homogeneous 

c)

 Element 

d)

 Compound 

10.

Which of the following best describes compounds?

a)

They can only be separated chemically

b)

They are always liquid at room temperature

c)

They contain the atoms of just one element

d)

They are the same properties as their elements

11.

 Air 

a)

 Homogeneous 

 Mixture 

b)

 Heterogeneous 

 Mixture 

c)

 Pure Substance

d)

 Element 

12.

Why kind of mixture is this?

a)

Heterogeneous

b)

Homogenous

c)

Element

d)

Compound

13.

The smallest building blocks of matter and make up everything around us.

a)

Element

b)

Matter

c)

Molecule

d)

Atom

14.

A material made up of two or more different chemical substances which are not chemically bonded

a)

Mixture

b)

Pure Substance

c)

Element

d)

Cell Phone

15.

Any substance composed of identical molecules consisting of atoms of two or more chemical elements.

a)

Atom

b)

Compound

c)

Matter

d)

Reactant

16.

A single kind of matter that cannot be separated into other kinds of matter by any physical mean

a)

Compound

b)

Molecule

c)

Mixture

d)

Pure Substance

17.

N (Nitrogen) is an example of a(n)

a)

compound

b)

element

c)

mixture

d)

photon

18.

Use the photo to identify the image with the element

a)

A

b)

B

c)

C

d)

A & B

19.

Which of the following would represent a compound?

a)

Model 1 (left)

b)

Model 2 (middle)

c)

Model 3 (right)

20.

What type of substance is being modeled here?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

21.

What type of substance is being modeled here?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

22.

What type of substance is being modeled here?

a)

pure substance of one element

b)

mixture of two elements

c)

mixture of two compounds

d)

pure substance of one compound

23.
Jorge prepared a drink and salad for dinner. The chart lists the ingredients for both.
Using the information in the chart, which statement is the BEST description of the drink and salad?
a)
The salad and fruit drink are both mixtures.
b)
The salad and the fruit drink are both solutions.
c)
The fruit drink is a mixture because the ingredients can't be separated.
d)
The salad is a solution because the ingredients can't be separated.
24.

How many different types of compounds are pictured?

a)

1

b)

2

c)

4

d)

8

25.

Which diagrams are modeling mixtures?

a)

i, iii, and iv

b)

ii, iii, v, and vi

c)

v and vi only

d)

ii and iii only