Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Unit 1 Review

Total questions: 44

Worksheet time: 25mins

Name
Class
Date
1.

All matter is made up of __________

a)

energy

b)

atoms

c)

electrons

d)

compounds

2.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

3.

How many Electrons does this element have?

a)

2.5

b)

5

c)

6

d)

10.81

4.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
5.
Which of these is the proton.
a)
A
b)
B
c)
C
d)
None
6.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
7.

Which of these is the neutron?

a)

A

b)

B

c)

C

d)

D

8.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
9.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
10.

What is the total number of atoms in an ammonia (NH3) molecule?

a)

1

b)

2

c)

3

d)

4

11.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture (both)

12.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture of elements and compounds (both)

13.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture of compounds and elements (both)

14.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture (both)

15.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture of elements and compounds (both)

16.

Element, Compound, or Both?

a)

element

b)

compound

c)

mixture of elements and compounds (both)

17.

What type of charge does a proton have?

a)

Negative

b)

Neutral

c)

Positive

18.

What type of charge does a neutron have?

a)

Negative

b)

Neutral

c)

Positive

19.

What type of charge does an electron have?

a)

Negative

b)

Neutral

c)

Positive

20.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Coefficients
c)
Precipitates
d)
Reactants
21.
The substances listed on the right side of a chemical equation are the
a)
Yields
b)
Reactants
c)
Products
d)
Precipitates
22.
A molecule is smaller than an atom.
a)
True
b)
False
23.
How many Oxygen (O) atoms are in 2C2HO8Cl2
a)
2
b)
16
c)
8
d)
5
24.
How many Hydrogen (H) atoms are in NH3O5
a)
3
b)
4
c)
5
d)
1
25.

Which of the following is true based on the information below?

Na (Sodium) is an explosive gas

Cl (Chlorine) is a poisonous metal

NaCl is Table Salt

a)

Na is a gas

b)

Cl combusts when put in water

c)

NaCl is very different than Na and Cl

d)

Cl is a metal

26.

During a reaction, atoms are

a)

created

b)

destroyed

c)

neither created or destroyed - just rearranged

27.

How many total atoms are in this compound? Al2O3

a)

2

b)

5

c)

6

d)

3

28.

Is a copper penny turning greenish after a few years a chemical or physical change?

a)

Chemical Change

b)

Physical Change

29.

A chemical reaction is when...

a)

Atoms and molecules are destroyed

b)

Atoms and molecules are created

c)

Atoms and molecules break apart and regroup to form new products

d)

Atoms and molecules go on vacation and relax a little

30.

Which chemical equation matches the model shown?

a)

3C + 4O --> 3CO2

b)

3C + 2O2 --> 3CO2

c)

C3 + 4O --> 3CO6

d)

C3 + 2O2 --> 3CO6

31.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
32.

Which chemical formula matches the model?

a)

H2O

b)

O2

c)

NH4

d)

H2O2

33.

Which chemical formula matches the model?

a)

H2O

b)

O2

c)

NH4

d)

H2O2

34.

Which chemical formula matches the model?

a)

H2O

b)

O2

c)

NH4

d)

H2O2

35.

Melting ice

a)

physical change

b)

chemical change

36.

Burning wood

a)

physical change

b)

chemical change

37.

Acid in stomach, breaking down food.

a)

physical change

b)

chemical change

38.

Burning coal

a)

chemical change

b)

physical change

39.

Soured milk

a)

physical change

b)

chemical change

40.

Which change describes a substance that changes shape, form, or appearance but is still the same substance?

a)

physical change

b)

chemical change

41.

What happens when a new substance is produced during a reaction?

a)

chemical change

b)

physical change

42.

rusty nail

a)

chemical change

b)

physical change

43.

broken glass

a)

physical change

b)

chemical change

44.

mixing baking soda and vinegar

a)

chemical change

b)

physical change

Similar Resources on Wayground

Science 8 Diagnostic (Fall 2020)

40 questions

Science 8 Diagnostic (Fall 2020)

quiz

Worksheet

•

8th Grade

Final review of Chemistry 20-21

45 questions

Final review of Chemistry 20-21

quiz

Worksheet

•

8th - 10th Grade

Human Body Practice Test

44 questions

Human Body Practice Test

quiz

Worksheet

•

6th - 8th Grade

Science Form 3_Chap 1.3 & 1.4

40 questions

Science Form 3_Chap 1.3 & 1.4

quiz

Worksheet

•

9th Grade

8K Energy Transfers

40 questions

8K Energy Transfers

quiz

Worksheet

•

7th - 9th Grade

Biology Finale 2021

47 questions

Biology Finale 2021

quiz

Worksheet

•

9th - 10th Grade

SCIENCE QUIZ(18/4/23)

40 questions

SCIENCE QUIZ(18/4/23)

quiz

Worksheet

•

9th - 12th Grade

1234

39 questions

1234

quiz

Worksheet

•

9th - 12th Grade