wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

End of Semester Review (2021)

Total questions: 51

Worksheet time: 52mins

Name
Class
Date
1.

The things that are kept the same to ensure the results are due to the experiment is called..

a)

Constant

b)

Dependent Variable

c)

Independent Variable

2.
The variable the is changed on purpose is..
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
3.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
4.
Its one of the independent variables that is use for comparison, does not get any change, original or plain variable.
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
5.
Which brand of paper towel will absorb the most liquid? What is the independent variable?
a)
Brand of paper towel
b)
Amount of water absorbed
6.

Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the independent variable?

a)

type of soap

b)

how long the laundry takes

7.

The ____________ of an object is the total amount of space filled by the object.

a)

mass

b)

area

c)

volume

8.
In an appropriately designed experiment, a scientist is able to test the effect of
a)
 a single variable
b)
 multiple variables
c)
 the hypothesis
d)
 scientific observations
9.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
10.
A testable answer to a scientific question
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
11.

The atomic number identifies the number of __________.

a)

electrons

b)

atoms

c)

protons

d)

neutrons

12.

Subatomic particles that have a negative charge

a)

electrons

b)

protons

c)

quarks

d)

neutrons

13.

The number 16 for the atomic element sulfur is the

a)

ionic number

b)

isotope

c)

atomic mass

d)

atomic number

14.

How many protons does sulfur have?

a)

32

b)

16

c)

48

d)

12

15.

How many electrons does sulfur have

a)

16

b)

32

c)

48

d)

12

16.

The center of an atom is called the ________________.

a)

electron cloud

b)

nucleus

c)

neutrion

d)

nuetron

17.

Which parts of the atom move around the nucleus?

a)

electrons

b)

protons

c)

electrode particles

d)

neutrons

18.

What is the mass number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons and electrons in the atom

19.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

20.
How is the number of neutrons in the nucleus of an atom calculated?
a)
Add the number of e- and p+ together
b)
Subtract the number of e- from p+
c)
Subtract the number of p+ from the mass number
d)
Add the mass number to the number of e-
21.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
22.

Which of the following determines the identity of an element?

a)

number of protons

b)

atomic mass

c)

number of neutrons

d)

number of shells

23.

A green powder is heated & a gas is given off while it turns to a black solid. This describes

a)

Physical Change

b)

Chemical Change

c)

Change in State

d)

Change in Temperature

24.

Which of the following could indicate that a chemical change took place?

a)

Change in color

b)

Production of Energy

c)

Formation of Gas

d)

All are correct

25.

The formation of a solid when two liquids combine is called?

a)

Solidification

b)

Freezing

c)

Precipitate

d)

Solubility

26.

The difference between a Physical change and a Chemical change is…

a)

Physical change is only a change to the outside appearance.

b)

Chemical change is when matter is changed into something new.

c)

Atoms are rearranged in chemical changes & not in physical.

d)

All are correct.

27.

Which type of change is most often easily reversed?

a)

Chemical

b)

Physical

c)

Both a physical and chemical change.

d)

Neither a physical or chemical change.

28.

Which of the following is not a compound?

a)

HCl

b)

Cl2

c)

NaCl

d)

CO2

29.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
30.
Name this compound: H2O
a)
Water
b)
Carbon dioxide
c)
Hydrogen peroxide 
d)
Sulfuric acid
31.
A molecule is
a)
two or more atoms bonded together
b)
one type of atom
c)
smaller than an atom 
d)
an element
32.

How many Oxygen atoms are in H2O?

a)

1

b)

2

c)

0

d)

4

33.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
34.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
35.

When two or more different elements combine.

a)

Atoms

b)

Elements

c)

Molecules

d)

Compounds

36.

Calculate the number of Oxygen atoms in Al(OH)3

a)

1

b)

2

c)

3

d)

4

37.

The ______ are numbers found on the lower right-hand side of an element symbol.

a)

Coefficient

b)

Exponent

c)

Multiplier

d)

Subscript

38.

4CF2Cl2

a)

C = 4, F = 4, Cl = 2

b)

C = 1, F = 8, Cl = 8

c)

C = 4, F = 8, Cl = 8

d)

C = 1, F = 4, Cl = 8

39.

What does the number 3 represent in 4NH3?

a)

Subscript

b)

Superscript

c)

Coefficient

40.

In the equation shown, what are the reactant(s)?

a)

N2 + H2

b)

NH3

41.

Is this equation balanced?

a)

Yes

b)

No

42.
How do you say Merry Christmas in Spanish?
a)
Noel
b)
Feliz Navidad
c)
Buenos Dias 
d)
Hola
43.
What magical article of clothing bring Frosty The Snowman to life?
a)
Cap
b)
Bow
c)
Black Hat
d)
Scarf
44.
In the popular Christmas song, Grandma Got Run Over By A _________?  Who ran over Grandma?
a)
GrandPa
b)
Santa Claus
c)
Reindeer
d)
Pickup Truck
45.
A triple beam balance measures in 
a)
grams
b)
litters
c)
kilometers
46.
A graduated cylinder measures in 
a)
litters
b)
grams
c)
kilometers
47.
Friction causes objects to
a)
speed up
b)
slow down
48.

To make an object move you must first apply ---

a)

an opposing force

b)

an unbalanced force

c)

a stationary force

d)

a vertical force

49.

a force is best defined as ---

a)

the application of weight

b)

a push or pull that is exerted on matter

c)

the flow of electric charges

d)

a bond in which electrons are shared

50.

A student pushes against a wall with 20 N of force and the wall does not move. In this situation, the wall exerts --

a)

0 N of force

b)

less than 20 N of force

c)

20 N of force

d)

more than 20 N of force

51.

Which law explains the relationship among mass, force and acceleration?

a)

Universal Law of Gavitation

b)

Newton's First Law of Motion

c)

Newton's Second Law of Motion

d)

Newton's Third Law of Motion

Similar Resources on Wayground

Unit 1 & 2 Test Review

48 questions

Unit 1 & 2 Test Review

quiz

Worksheet

•

8th Grade

Rocks and Minerals Review

55 questions

Rocks and Minerals Review

quiz

Worksheet

•

8th Grade

Forces Review PreAP

47 questions

Forces Review PreAP

quiz

Worksheet

•

8th Grade

Vocabulary

48 questions

Vocabulary

quiz

Worksheet

•

5th Grade - University

Reproduction Review

49 questions

Reproduction Review

quiz

Worksheet

•

8th Grade

Matter 1 and 2 Review

54 questions

Matter 1 and 2 Review

quiz

Worksheet

•

6th - 8th Grade

Seasons

50 questions

Seasons

quiz

Worksheet

•

8th Grade

Classification of Matter

53 questions

Classification of Matter

quiz

Worksheet

•

8th - 10th Grade