Free Printable Unit 3 Review: Elements

1.

Substance R?

a)

Iodine

b)

Phosphorus

c)

Gallium

d)

Potassium

2.

The smallest particle of an element

a)

Atom

b)

Proton

c)

Cell

d)

Molecule

3.

All matter on Earth is made from ___________.

a)

elements

b)

wood

c)

cells

d)

metal

4.

Symbol for nitrogen

a)

N

b)

n

c)

Ni

d)

Na

5.

Salt - element or not element?

a)

Element

b)

Not element

6.

What does this chemical formula represent?

a)

water

b)

hydrogen peroxide

c)

sodium hydroxide

d)

magnesium sulfate

7.

Symbol for sulfur

a)

S

b)

s

c)

Sr

d)

Sf

8.

Symbol for aluminum

a)

Al

b)

Am

c)

AL

d)

aL

9.

__________ and __________ are found in the atmosphere.

a)

Nitrogen and oxygen

b)

Hydrogen and oxygen

c)

Sodium and chlorine

d)

Carbon and phosphorus

10.

Can you change an element into another element?

a)

Yes

b)

No

11.

Symbol for hydrogen

a)

H

b)

h

c)

He

d)

he

12.

Symbol for sodium

a)

Na

b)

S

c)

So

d)

N

13.

How many elements are found in the oceans?

a)

4

b)

5

c)

2

d)

3

14.

Phosphorus is found in...

a)

living matter

b)

oceans

c)

atmosphere

d)

Earth's crust

15.

Hydrogen is found in...

a)

living matter, oceans

b)

atmosphere, living matter

c)

oceans, atmosphere

d)

atmosphere, living matter, oceans

16.

Which of the following is an element?

a)

He

b)

HE

c)

NaBrO

d)

NaCl

17.

Bronze - element or not element?

a)

Element

b)

Not element

18.

Symbol for phosphorus

a)

P

b)

Ph

c)

Ps

d)

Po

19.

Chlorine - element or not element?

a)

Element

b)

Not element

20.

Water - element or not element?

a)

Element

b)

Not element

21.

Symbol for carbon

a)

C

b)

c

c)

Ca

d)

Cb

22.

Copper - element or not element?

a)

Element

b)

Not element

23.

What two elements make up water?

a)

hydrogen and oxygen

b)

helium and oxygen

c)

helium and carbon

d)

hydrogen and sulfur

24.

Symbol for chlorine

a)

Cl

b)

Ci

c)

CL

d)

C

25.

Sodium - element or not element?

a)

Element

b)

Not element

26.

Symbol for oxygen

a)

O

b)

o

c)

Ox

d)

On

27.

Symbol for iron

a)

Fe

b)

Ir

c)

IR

d)

FE

28.

Elements are made from only ____ type(s) of atom.

a)

one

b)

two

c)

three

d)

four

29.

Nitrogen - element or not element?

a)

Element

b)

Not element

30.

Symbol for helium

a)

He

b)

H

c)

HE

d)

Hm

31.

Steel - element or not element?

a)

Element

b)

Not element

32.

_________ is found in living matter, the oceans, and the atmosphere.

a)

Oxygen

b)

Hydrogen

c)

Nitrogen

d)

Carbon

33.

Which describes elements?

a)

pure substances

b)

impure substances

c)

tiny particles of matter

d)

can be broken down

34.

Symbol for calcium

a)

Ca

b)

Cl

c)

CA

d)

ca

35.

Plastic - element or not element?

a)

Element

b)

Not element

36.

Symbol for silicon

a)

Si

b)

S

c)

s

d)

SI

37.

Glass - element or not element?

a)

Element

b)

Not element

38.

Silicon - element or not element?

a)

Element

b)

Not element

39.

True/False? You can break down an element into a simpler substance.

a)

True

b)

False

40.

Why is water not an element?

a)

It is made of two elements - hydrogen and oxygen

b)

It is made of two elements - helium and oxygen

c)

It is made of three elements - hydrogen, oxygen, and sulfur

d)

It is made of three atoms

41.

Most of Earth´s atmosphere consists of which element?

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Helium

Unit 3 Review: Elements

Total questions: 41

Worksheet time: 21mins

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