wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

1st nine weeks exam 23/24

Total questions: 89

Worksheet time: 2hrs 28mins

Name
Class
Date
1.

What is the difference between a conductor and an insulator?

a)

An insulator allows electricity to flow through it easily and a conductor does not

b)

A conductor allows electricity to flow through it easily and an insulator does not.

c)

An insulator is magnetic and a conductor is not

d)

A conductor is magnetic and an insulator is not

2.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
3.

What is happening at the boiling point?

a)

liquid to gas

b)

solid to liquid

c)

gas to liquid

d)

liquid to solid

4.

Copper and Iron are good _____________.

a)

insulators

b)

conductors

c)

driver

d)

protector

5.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
6.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
7.

Matter can be classified by characteristics.

In science, what do we call these characteristics?

a)

acidic and basic

b)

physical and chemical

c)

positive and negative

8.

A student sees bubbles begin to form within a mixture. the student believes this is a good sign that a chemical reaction has taken place. Explain why the bubbles are good evidence of a chemical reaction.

a)

Bubbles are cool.

b)

Bubbles are evidence of a chemical reaction because they indicate the presence of air.

c)

Bubbles are REALLY cool

d)

Bubbles are evidence of a chemical reaction because they indicate that a new substance (gas) has formed.

9.

What is PROOF that a chemical change has occured?

a)

a new substance with different properties is created.

b)

you can put the reactants back together

c)

the substance changes state, solid to liquid or liquid to solid.

10.

any characteristic of matter that you can observe without changing the identity of the substances that make it up

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

11.

a characteristic of matter you observe as it reacts or changes into a different substance

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

12.

When heat is released it is an

a)

exothermic reaction

b)

endothermic reaction

c)

both

d)

none

13.

This is when heat is absorbed, it is an

a)

Exothermic reaction

b)

endothermic reaction

c)

both

d)

none

14.
The ability of a metal to allow heat or electricity to pass through it.
a)
conductivity
b)
insulator
c)
mass
d)
density
15.
What state of matter does the picture best describe?
a)
Solid
b)
Liquid
c)
Gas
16.
Which State of Matter does the diagram best represent?
a)
Solid
b)
Liquid
c)
Gas
17.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
18.

Iron is a good conductor, malleable, magnetic and usually shiny. What type of element is Iron?

a)

Metal

b)

Non Metal

c)

Metalloid

d)

Pretty

19.
What is the definition of change of state?
a)
a characteristicof a substance that does not involve a chemical change, such as density, color, or hardness
b)
The change of a substance from one physical state to another.
c)
a change of matter from one form to another without a change in chemical properties
d)
a state of matter that starts as a gas and then becomes ionized
20.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
21.

What is the approximate density of water?

a)

1 cm

b)

almost 1g/mL

c)

2 g

d)

2 g/cm3

22.

The kinetic energies of particles in a sample of matter are increasing. This sample is most likely

a)

a liquid that is warming.

b)

a gas that is cooling.

c)

a liquid that is turning into a solid.

d)

a gas that is turning into a liquid.

23.

An air-filled balloon shrank when moved from a warm room to a refrigerator. Which statement best explains why the balloon shrank?

a)

The volume of air decreased as the number of particles decreased.

b)

The mass of the air decreased as the balloon cooled.

c)

External pressure on the balloon increased due to lower temperature.

d)

The internal pressure of the balloon decreased due to lower kinetic energy

24.

Which of the following changes made to a sample of liquid would increase the distance between individual molecules of the substance?

a)

Transferring the substance to a smaller container

b)

Decreasing the overall kinetic energy of the liquid

c)

Adding heat energy to the substance

d)

Changing the phase of matter from liquid to solid

25.

What is a solvent

a)

A liquid that will dissolve a solid solute

b)

Another word for solution

c)

A thing that make drinks change colour

d)

Usually the solid about to be dissolved

26.

The ___ is the thing being dissolved.

a)

solute

b)

solvent

c)

mixture

d)

solution

27.

Define the term soluble.

a)

Can dissolve in water

b)

Cannot dissolve in water

c)

Partially dissolves in water

28.

______ refers to the ability of a substance to combine and form a solution

a)

solvent

b)

solute

c)

solution

d)

solubility

29.
A change in a substance that only affects size, shape or state of matter.
a)
chemical change
b)
physical change
c)
chemical property
d)
endothermic
30.

Cutting, crushing, melting, and boiling are all examples of what?

a)

physical changes

b)

chemical changes

c)

messes

d)

Law of Conservation of Particles

31.

As thermal energy is added to a substance, which of the following changes is likely?

a)

Spacing between particles will decrease.

b)

Vibration of individual particles will increase.

c)

Temperature of the substance will decrease.

d)

Pressure of the substance will increase.

32.

Which of the following changes made to a sample of liquid would increase the distance between individual molecules of the substance?

a)

Transferring the substance to a smaller container

b)

Decreasing the overall kinetic energy of the liquid

c)

Adding heat energy to the substance

d)

Changing the phase of matter from liquid to solid

33.

Large molecules made up of small monomers are called

a)

polymers

b)

peptides

c)

peptones

d)

monomers

34.

During an experiment, a class heated a balloon that had an initial circumference of 25 cm. The circumference increased to 27 cm. Which is the best conclusion that can be drawn?

a)

The molecules inside the balloon lost energy to the outside.

b)

The molecules inside the balloon gained energy from the heat.

c)

The energy of the molecules inside the balloon remained the same.

d)

The molecules inside the balloon were escaping outside.

35.

An air-filled balloon shrank when moved from a warm room to a refrigerator. Which statement best explains why the balloon shrank?

a)

The volume of air decreased as the number of particles decreased.

b)

The mass of the air decreased as the balloon cooled.

c)

External pressure on the balloon increased due to lower temperature.

d)

The internal pressure of the balloon decreased due to lower kinetic energy

36.
Which container will have a lower pressure?
a)
left
b)
right
c)
they both have the same pressure
d)
I don't know
37.
Physical or Chemical change:
a bicycle changes color as it rusts
a)
physical change
b)
chemical change
38.
Which of the following indicates a PHYSICAL change?
a)
Change in temperature
b)
Change in shape
c)
Formation of a precipitate
d)
Change in color
39.

the temperature at which a solid changes to a liquid

a)

solubility

b)

boiling point

c)

melting point

d)

state of matter

40.
Dissolving a solid into a liquid is a ___.
a)
physical change
b)
chemical change
41.
Temperature describes  the ______________ of particles.
a)
volume
b)
mass
c)
motion
d)
conductivity
42.
Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)

.14 g/cm3

43.

Claire has a liquid. It has a mass of 9g and a volume of 3mL. What is its density?

a)

3 g/mL

b)

.33 g/mL

c)

27 g/mL

d)

39 g/mL

44.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
45.

Students are able to introduce a sample of gas into a chamber with a moveable divider. 

The divider allows them to change the portion of the chamber occupied by the gas.

When the volume of the gas is reduced, what change in property would be the most reasonable to expect?

a)

The density will decrease

b)

The temperature will decrease

c)

The pressure will decrease

d)

The pressure will increase.

46.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

a)

The pressure will increase

b)

The pressure will decrease

c)

The pressure will remain constant

d)

The pressure will equalize

47.

A helium balloon is taken outside on a very cold day. The balloon wrinkles and becomes a little smaller, but returns to its normal size when it is taken back inside the warm house. Why does the balloon inflate when it reenters the warm house?

a)

The warmer temperature causes more gas to enter the balloon, and it expands.

b)

The warmer temperature causes the gas in the balloon to contract.

c)

The warmer temperature causes the gas in the balloon to expand.

d)

The warmer temperature causes the gas in the balloon to turn into a solid.

48.

Which of the following is a measure of the amount of matter in an object?

a)

Mass

b)

Volume

c)

Density

d)

Weight

49.

Which of the following is a measure of how much mass is contained in a given volume?

a)

Mass

b)

Volume

c)

Density

d)

Weight

50.

Which of the following is a measure of the space occupied by an object?

a)

Mass

b)

Volume

c)

Density

d)

Weight

51.

Which subatomic particle has a POSITIVE charge?

a)

Proton

b)

Neutron

c)

Electron

d)

none of these

52.

The two subatomic particles found in the nucleus are ____________________.

a)

protons and electrons

b)

protons and neutrons

c)

neutrons and electrons

d)

protons, neutrons, and electrons

53.

An atom is ______________.

a)

the smallest living organism

b)

a subatomic particle

c)

the smallest unit of matter

d)

a philosopher from 420 B.C.

54.

Which subatomic particle has a NEGATIVE charge?

a)

Proton

b)

Neutron

c)

Electron

d)

none of these

55.
Electrons carry what charge? 
a)
neutral 
b)
negative
c)
positive
56.
What is the mass number?
a)
The average atomic mass
b)
the number of protons and neutrons in the nucleus
c)
the number of protons in the nucleus
d)
the number of protons and electrons in the nucleus
57.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
58.
The smallest particle of any particular type of matter is known by which of the following terms?
a)
Compound
b)
Atom
c)
Chemical
d)
Element
59.

What is the atomic number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

energy shells

60.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
61.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
62.
Cobalt (Co) has 27 protons in each atom. Based on this information, which of the following also describes an atom of Cobalt?
a)
It has no neutrons.
b)
It has 27 electrons.
c)
It has 13 neutrons and 14 electrons.
d)
It has a total of 86 neutrons and electrons.
63.
Iodine (I) has 53 electrons in each atom. Based on this information, which of the following also describes an atom of silver?
a)
It has 53 neutrons.
b)
It has 53 protons.
c)
It has 27 neutrons and 26 electrons.
d)
It has a total of 180 neutrons and electrons.
64.
An element with an atomic number of 37 and an atomic mass of 85 has how many neutrons in each atom?
a)
37
b)
48
c)
85
d)
122
65.
An atom has 54 protons, 54 electrons, and 131 neutrons. What is the atomic number of the atom?
a)
54
b)
77
c)
131
d)
185
66.
All atoms of an element have the same number of _____________.
a)
neutrons
b)
electrons
c)
protons
d)
atomic mass
67.

Which TWO of the following subatomic particles are inside the nucleus?

a)

protons

b)

electrons

c)

neutrons

d)

There are no subatomic particles in the nucleus of an atom.

68.

If the solar system were used as a model of an atom, what would the Sun most likely represent?

a)

an ion

b)

a nucleus

c)

a neutron

d)

an electron

69.

What subatomic particles identify silver atoms?

a)

neutrons

b)

electrons

c)

nuclei

d)

protons

70.

most of the mass of an atom is found in the

a)

protons

b)

neutrons

c)

orbitals

d)

nucleus

71.
The Greek philosopher Aristotle decribed matter with the phrase "unable to be divided." The modern concept that grew from Aristotle's idea is the
a)
atom
b)
proton
c)
neutron
d)
electron
72.
True or False: The majority of an atom is made up of empty space
a)
True
b)
False
73.
Who performed the Gold Foil Experiment?
a)
J. J. Thomson
b)
Ernest Rutherford
c)
Neils Bohr
d)
John Dalton
74.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
75.
A compound is made of ________ atoms. 
a)
big 
b)
similar 
c)
different 
76.
Carbon Dioxide is a ______ 
a)
compound 
b)
element 
c)
mixtures 
d)
Battle of Bunker Hill 
77.
Contains two or more atoms combined
a)
Elements
b)
Compounds
c)
Mixtures
78.

The diagram shows

a)

element

b)

mixture

c)

compound

79.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
80.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
81.
A pure substance that cannot be broken down into other substances by chemical or physical means. 
a)
compound          
b)
atom
c)
mixture 
d)
element
82.
The building block of matter is
a)
Mixture
b)
Atom
c)
Element
d)
Substance
83.
a)
Element
b)
Compound
c)
Mixture
84.
a)
Element
b)
Compound
c)
Mixture
85.

Elements

a)

are made of two or more types of atoms chemically bonded together

b)

are made of one type of atom

c)

are made of two or more types of molecules combined in the same space

d)

are always individual atoms

86.

Compounds

a)

are made of two or more types of atoms chemically bonded together

b)

are made of one type of atom

c)

are found on the periodic table

d)

can be separated into their individual parts through physical means

87.

Which of the following are examples of ELEMENTS?

a)

Oxygen

b)

Water

c)

F2

d)

Lemonade

e)

Sulfur Dioxide (SO2)

88.

Which of the following are examples of Compounds?

a)

Salt

b)

Salt Water

c)

N2 + O2

d)

C6H12O6

e)

Co

89.

How many elements are in the compound Fe2O3?

a)

0

b)

1

c)

2

d)

3

Similar Resources on Wayground

Chemical Reaction Unit Review

90 questions

Chemical Reaction Unit Review

quiz

Worksheet

•

7th Grade

Photosynthesis and respiration

89 questions

Photosynthesis and respiration

quiz

Worksheet

•

7th Grade

Digestion Test Review

90 questions

Digestion Test Review

quiz

Worksheet

•

6th - 8th Grade

Révision fin d'année (ST1)

85 questions

Révision fin d'année (ST1)

quiz

Worksheet

•

7th - 8th Grade

Grade 7 Quarter 6

92 questions

Grade 7 Quarter 6

quiz

Worksheet

•

7th Grade

GS2 Semester 1 Review(NGSS 8th grade)

85 questions

GS2 Semester 1 Review(NGSS 8th grade)

quiz

Worksheet

•

7th - 8th Grade

6th Intro Test

92 questions

6th Intro Test

quiz

Worksheet

•

6th - 8th Grade