wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Mixtures, Atoms, Molecules, Substances

Total questions: 42

Worksheet time: 28mins

Name
Class
Date
1.

An Atom

a)

cannot be broken into any smaller piece of matter

b)

is a molecule

c)

a chemical bond

d)

all of the above

2.

A molecule

a)

Has one type of atom

b)

As two or more different atoms

c)

is an element

d)

all of the above

3.

two or more atoms that bind together form

a)

an element

b)

a molecule

c)

atoms

d)

none of the above

4.

CO2 is a molecule

a)

true

b)

false

c)

none

d)

both

5.

True or False? An atom is SMALLER than a molecule.

a)

True

b)

False

6.

Matter is...

a)

Energy, like light and sound

b)

What everything is made of

7.

Two atoms stuck together would be called...

a)

A team

b)

A molecule

c)

A chemical

d)

A duet

8.

Look at the picture. How many atoms do you see?

a)

3 atoms

b)

6 atoms

9.

Look at the picture. How many molecules do you see?

a)

3 molecules

b)

6 molecules

10.

Look at the picture. It's a glucose molecule - that's a type of sugar. How many TYPES of atoms do you see?

a)

All one type of atoms

b)

3 types of atoms: white, black, and red

c)

It's not made of atoms

11.

Look at the picture. It's a molecule of Lauric Acid, a saturated fat found in coconut oil. How many TYPES of atoms do you see?

a)

3 types of atoms: C, H, and O

b)

It's all the same atoms

c)

It's not made of atoms

12.

Look at the picture. This is a molecule of ammonia, which we use for cleaning. How many atoms are in it? (The total number, not how many types)

a)

One

b)

Two

c)

Three

d)

Four

13.

Water is clear, wet, and easy to pour. These are its...

a)

Matter

b)

Properties

c)

Atoms

d)

Mixture

14.

The Moon is very large. It's made of a lot of...

a)

Cheese

b)

Properties

c)

Matter

d)

Energy

15.

Substance is just another name for...

a)

Material or stuff

b)

Properties or traits

c)

Liquid or water

d)

Scale or size

16.

Which of the following is made of atoms?

a)

Molecules

b)

Air

c)

You

d)

All of these answers!

17.

All matter is made of what

a)

energy

b)

atoms

c)

electrons

d)

compounds

18.
What is the total number of atoms in an ammonia (NH3) molecule?
a)
1
b)
2
c)
3
d)
4
19.

This is a picture of a(n)

a)

molecule

b)

atom

c)

electron

d)

nucleus

20.

This is a picture of __________________.

a)

molecules

b)

atoms

c)

electrons

d)

protons

21.

This is a picture of __________________

a)

molecules

b)

atoms

c)

electrons

d)

protons

22.
What is the basic unit of matter and is the smallest particle of an element?
a)
Atoms
b)
Elements
c)
Compounds
d)
Molecules
23.
How many hydrogen atoms are there in a water molecule? 
a)
0
b)
1
c)
2
d)
3
24.
How many carbon atoms are there in a methane molecule? 
a)
0
b)
1
c)
4
d)
5
25.

This is anything that has mass and takes up space (meaning it has a volume).

a)

matter

b)

mass

c)

element

d)

energy

26.

The smallest particle of an element is a/an

a)

matter

b)

atom

c)

molecule

d)

electron

27.
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.
28.

Matter is anything that has ____________ and takes up ____________.

a)

atoms, energy

b)

mass, space

c)

minerals, volume

d)

mass, time

29.

Which image represents a mixture.

a)
b)
c)
d)
30.

Pizza, soil, and lemonade are all examples of

a)

compounds.

b)

atoms.

c)

mixtures.

d)

elements.

31.

A combination of two or more substances that are not chemically combined is known as a

a)

mixture

b)

molecule

c)

compound

d)

element

32.

All elements are composed of extremely small particles called

a)

atoms.

b)

molecules.

c)

compounds.

d)

mixtures.

33.

Matter that is made up of one or more substance is called a ______________.

a)

Soluble

b)

Atom

c)

Mixture

d)

Dissolve

34.

Something that you figure out based on observations, evidence, and what you already know is called an _____________.

a)

Inference

b)

Answer

c)

Mixture

d)

Attraction

35.

Matter that is made up of only one kind of atom or molecule is called a ________________.

a)

Soluble

b)

Model

c)

Mixture

d)

Substance

36.

Mixing evenly into a liquid by breaking into pieces that are too small to see is to __________________.

a)

Molecule

b)

Dissolve

c)

Atom

d)

Evidence

37.

To _________ means to pull on an object even without touching it.

a)

Inference

b)

Substance

c)

Mixture

d)

Attract

38.

_________ are made by scientist to answer questions.

a)

Substances

b)

Molecules

c)

Models

d)

Atoms

39.

_______________ are small bits of solid materials that settle to the bottom of a liquid.

a)

Mixtures

b)

Sediments

c)

Properties

d)

Substances

40.

___________ means to be able to be dissolved in another liquid.

a)

Inferences

b)

Mixture

c)

Matter

d)

Soluble

41.

Information that supports an answer to a question is called _______________.

a)

Attraction

b)

Evidence

c)

Solubility

d)

Inference

42.

A ________________ is what you can observe or measure about something that helps you describe it.

a)

property

b)

inference

c)

attraction

d)

molecule