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Pure Substances & Mixtures Review

Total questions: 20

Worksheet time: 8mins

Name
Class
Date
1.

A pure substance that contains only one type of atom?

a)

element

b)

compound

c)

solution

d)

collid

2.

What is a compound?

a)

The parts of a element.

b)

A heterogenius mixture.

c)

Two or more elements joined by physical bonds.

d)

Two or more elements joined by chemical bonds.

3.

Which of the following is a homogeneous Mixture?

a)

Cereal in milk

b)

Soil

c)

Air

d)

Blood

4.

___________ are the smallest unit of an element that maintains the properties of that element.

a)

Atoms

b)

Elements

c)

Compounds

d)

Mixtures

5.

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

a)

compound

b)

element

c)

molecule

d)

mixture

6.

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

a)

heterogeneous

b)

homogenous

c)

pure substance

7.

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

a)

heterogeneous

b)

homogeneous

c)

pure substance

8.

_______________ are mixtures in which its particles are too big to stay mixed without being stirred or shaken.

a)

Solutions

b)

Colloids

c)

Suspensions

9.

A type of mixture that falls in between suspensions and solutions are called ______________.

a)

solutions

b)

colloids

c)

suspensions

d)

pure substances

10.

A snow globe would be an example of a __________________.

a)

colloid

b)

solution

c)

suspension

11.

Milk and gelatin are examples of __________________.

a)

suspensions

b)

colloids

c)

solutions

12.

Tea and air are examples of ________________.

a)

solutions

b)

suspensions

c)

colloids

13.

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

a)

heterogeneous

b)

homogeneous

c)

pure

d)

green

14.

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

a)

heterogeneous

b)

homogeneous

c)

pure

d)

purple

15.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

16.

Which of these is a compound?

a)

Aluminium (Al)

b)

Table Salt (NaCl)

c)

Nitrogen (N)

d)

Dirt

17.

What is this?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

18.

What type of substance is pictured?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous MIxture

19.

What type of substance is pictured?

a)

element

b)

compound

c)

mixture

d)

solution

20.
Two or more physically combined substances form —
a)
a compoud
b)
an acid
c)
an element
d)
a mixture