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Pure substances

Total questions: 15

Worksheet time: 24mins

Name
Class
Date
1.

An _______________ is made up of one or more of the same kind of atom chemically combined.

a)

atom

b)

element

c)

molecule

d)

compound

2.

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

a)

compound

b)

element

c)

molecule

d)

mixture

3.

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

a)

mixture

b)

pure substance

c)

compound

d)

element

4.

A ______________ mixture is one that does not have a uniform composition.

a)

heterogeneous

b)

homogenous

c)

pure substance

5.

A _________________ mixture is one where the substances are evenly spread throughout.

a)

heterogeneous

b)

homogeneous

c)

pure substance

6.

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

7.

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

8.

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

9.
Combination of two or more pure substances that are not chemically combined
a)
compound          
b)
atom
c)
mixture 
d)
element
10.
made up of one kind of matter and has a definite set of properties
a)
compound          
b)
atom
c)
mixture 
d)
pure substance
11.
A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an
a)
Mixture 
b)
Substance
c)
Solution
12.

A pure substance that cannot be broken down into other substances by chemical or physical means.

a)

compound

b)

atom

c)

mixture

d)

element

13.
Liquids that are combined together and maintain their physical properties are labeled as a 
a)
solute
b)
mixture
c)
solvent
d)
compound
14.
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.
15.

A grainy, multi-colored substance is combined with a liquid, doesn't dissolve, and settles on the bottom of the container. Determine if the substance is a mixture or pure substance and what type.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture