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SNC1W Grade 9 Final Exam 2026

Total questions: 97

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

An electron is:

a)

Positively charged

b)

Negatively charged

c)

Neutral

2.

The atomic number of an element tells us:

a)

The number of protons

b)

The number of neutrons

c)

The number of protons plus neutrons

d)

The atomic mass

3.

An ice cube melting is an example of a:

a)

Physical change

b)

Chemical change

4.

Beryllium's atomic number is 4 and its atomic mass is 9. How many neutrons will a beryllium atom have?

a)

4

b)

5

c)

9

d)

13

5.

Which of these is NOT a physical property?

a)

Colour

b)

Melting Point

c)

Hardness

d)

Flammability

6.

In a Bohr-Rutherford Diagram, the innermost shell has a maximum of how many electrons?

a)

1

b)

2

c)

8

d)

18

7.

Calcium's atomic number is 20. A calcium ion has a charge of +2. How many electrons does a calcium ion have?

a)

18

b)

20

c)

22

d)

40

8.

Where would you tend to find non-metals on the periodic table?

a)

In the left-most groups

b)

In the middle of the table

c)

In the right-most groups

d)

At the bottom of the table

9.

If an ion is positively charged, it is referred to as a:

a)

Anion

b)

Cation

10.

The charge of an ion is -3. This means the atom must have:

a)

Gained 3 protons

b)

Lost 3 protons

c)

Gained 3 electrons

d)

Lost 3 electrons

11.

A sulfur atom has 16 protons and 16 neutrons. What is its atomic mass?

a)

16

b)

24

c)

32

d)

48

12.

Fill-in-the-blank: Elements in the same ____________ have similar chemical properties.

a)

group

b)

row

c)

period

13.
Which of the following is an example of an element?
a)
Water
b)
Carbon 
c)
Oil
d)
Carbon Dioxide 
14.
Which of the following is an example of a mechanical mixture?
a)
Water
b)
cereal and milk 
c)
brass
d)
salt water 
15.
When the number of electrons and protons is the same, the atom will: 
a)
Have no charge
b)
A positive charge
c)
Explode
d)
A negative charge
16.
State the type and number of atoms found in CO2:
a)
2 carbons and 2 oxygen
b)
1 Carbon and 2 Oxygen
c)
1 Nitrogen and 2 Oxygen
d)
2 Carbon and 1 Oxygen
17.
Breaking a toothpick is an example of which type of change?
a)
Chemical Change 
b)
Mechanical Change 
c)
No Change 
d)
Physical Change 
18.

Adding hydrochloric acid (HCl) to a magnesium ribbon strip and making bubbles is an example of what type of change?

a)

Physical Change 

b)

Chemical Change 

c)

No Change 

d)

Mechanical Change

19.
What is an example of a compound?
a)
Salt water
b)
Sugar water
c)
Oil and vinegar mixture
d)
Water
20.

Is burning wood in a campfire an example of a Physical or Chemical change?

a)

Physical Change

b)

Chemical Change

21.

Which of the following elements are metals? (check all the apply)

a)

Oxygen

b)

Potassium

c)

Copper

d)

Neon

e)

Uranium

22.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
23.

Which is a halogen?

a)

Helium

b)

Chlorine

c)

Oxygen

d)

Lithium

24.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
25.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
26.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
27.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
28.
How many neutrons in C-14?
a)
6
b)
7
c)
14
d)
8
29.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
30.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
31.

how many electrons does an uncharged atom of Neon have?

a)

8

b)

9

c)

10

d)

11

32.

How many electrons does an atom of bromine (Br) if it has a charge of -1

a)

30

b)

32

c)

35

d)

36

33.

Which two components of an atom contribute to the mass?

a)

Protons and neutrons

b)

Protons and electrons

c)

neutrons and electrons

34.

What type of bond is formed when atoms share electrons?

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Polyatomic

35.

Who came up with the billiard ball model of the atom?

a)

Dalton

b)

Rutherford

c)

Crookes

d)

Bohr

36.

Which term is used to describe the transformation of a liquid into a gas?

a)

Solidification/freezing

b)

Sublimation

c)

Condensation

d)

Evaporation

37.

Na has an atomic number of 11 and a mass number of 23. State the number of protons, neutrons and electrons.

a)

P = 11, E = 11, N = 12

b)

P = 11, E = 11, N = 34

c)

P = 11, E = 12, N = 11

d)

P = 11, E = 11, N = 11

38.

What group is this element in?

a)

3

b)

1

c)

11

d)

4

39.

Why does an atom have an overall neutral charge?

a)

Equal numbers of protons and neutrons

b)

Equal numbers of electrons and neutrons

c)

Equal numbers of protons and electrons

d)

Equal numbers of protons, neutrons and electrons

40.

Why does potassium oxide have the following formula: K2O?

a)

2 K atoms required for every 1 oxygen atom

b)

1 K ion required for every 1 oxide ion

c)

1 K atom required for every 1 oxygen atom

d)

2 K ions required for every 1 oxide ion

41.

Which animal occupies the fourth trophic level?

a)

hawk

b)

lizard

c)

snake

d)

grass

42.

Check off all animal(s) that is/are a secondary consumer.

a)

hawk

b)

rabbit

c)

snake

d)

mouse

e)

lizard

43.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
44.

Check all term(s) that can be used to describe organisms that create their own energy from sunlight or chemicals.

a)

Herbivore

b)

Omnivore

c)

Autotroph

d)

Heterotroph

e)

producer

45.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
46.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
47.

Check all terms that describe an organism that obtains energy by eating other organisms.

a)

Consumer

b)

Producer

c)

hetertroph

d)

autotroph

48.
How many herbivores are in this web?
a)
1
b)
2
c)
3
d)
4
49.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
50.

Choose the best answer. A food web has arrows. The arrow shows:

a)

The direction of energy flow (from predator TO prey)

b)

The direction of energy flow (from prey TO predator)

c)

The energy at each trophic level

d)

Possible feeding relationships

51.

A pilot fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Decomposition

52.
A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?
a)
Predator-Prey
b)
Commensalism
c)
Mutualism
d)
Parasitism
53.

A feeding relationship where one organism hunts and one is hunted, such as a Lynx hunting a snowshoe hare, is known as:

a)

Commensalism

b)

Decomposistion

c)

Mutualism

d)

Predator-Prey

54.

The maximum population size of a species that the environment can sustain:

a)

Prey

b)

Decomposer

c)

Carrying Capacity

d)

Commensalist

55.

Another word for a plant that makes its own food using energy from sunlight…

a)

photosynthesis

b)

producer

c)

heterotroph

d)

carnivore

e)

herbivore

56.
What follows evaporation during the water cycle? How does this occur?
a)
Water evaporates into water vapor
b)
Water vapor condenses and forms a  cloud
c)
Water precipitates to the ground
d)
Water runs down into the hydrosphere
57.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
58.

According to this diagram, what are two methods by which water on land (in lakes and streams) returns to the oceans? (Select TWO answers)

a)

Surface runoff

b)

Groundwater

c)

Evaporation

d)

Precipitation

59.

According to this diagram, what are two methods by which water is converted to vapor? (Select TWO answers)

a)

Condensation

b)

Transpiration

c)

Evaporation

d)

Precipitation

60.

The image shows various stages in the water cycle. During which stage does water flow back towards the sea as runoff?

a)

W

b)

X

c)

Y

d)

Z

61.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
62.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
63.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
64.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

65.

What percent of the atmosphere is compose of Nitrogen?

a)

18%

b)

8%

c)

78%

d)

70%

66.
What converts some atmospheric nitrogen into nitrates that organisms can use?
a)
Sun
b)
Rain
c)
Thunder
d)
Lighting
67.
A battery or other device which provides energy for a circuit
a)
Conductor
b)
Power source
c)
Parallel circuit
d)
Complete circuit
68.
a)
Series circuit
b)
Incomplete circuit
c)
Parallel circuit
d)
Power source
69.
The flow of electricity through a conductor
a)
Battery
b)
Current
c)
Static electricity
d)
Switch
70.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
71.
What is the major difference between static electricity and current electricity?
a)
Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
b)
Current electricity can be deadly; static electricity is almost always safe
c)
In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
d)
Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons
72.

Which of these materials is a good conductor of electricity?

a)

Rubber

b)

Metal

c)

Newspaper

d)

Glass

73.
This is the symbol for a _____?
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
74.
This is the symbol for a _____?
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
75.

1. Which switch or switches must be closed to make the lamps light?

a)

Only switch 1

b)

Only switch 1

c)

Switches 1 and 2

d)

Switches 1 , 2 and 3

76.

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

a)

It will stay lit

b)

It will go out

c)

It will get dimmer

d)

It will dissapear

77.

If two charges repel each other, the two charges must be

a)

Positive and neutral

b)

Positive and negative

c)

positive and neutral

d)

negative and negative

78.
An object becomes charged when the atoms in the object gain or lose
a)
electrons
b)
protons
c)
neutrons
d)
all of the above
79.

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

a)

friction destroyed electrons in the rod.

b)

the silk has become negatively charged.

c)

protons have moved to the rod.

d)

glass attracts more protons.

80.
The unit for current is the 
a)
Volt
b)
Ohm
c)
Electron
d)
Amp
81.
Lightning is an example of _________.
a)
static electricity
b)
current electricity
c)
watts
d)
voltage
82.
As the resistance in a circuit increases, the electric current __________.
a)
increases
b)
decreases
c)
stays the same
83.
Which formulas represents Ohm's law?
a)
V=IR
b)
R=IV
c)
I=RV
84.

Which of these will repel each other?

a)

Negatively charged balloon and positively charged sphere.

b)

Negatively charged balloon and neutral sphere.

c)

Negatively charged balloon and negatively charged sphere.

d)

Negatively charged balloon and neutral wall.

85.

If the light bulb in the middle burned out, what would happen to the other two?

a)

The light bulb to the left would stay lit, but the one to the right would turn off.

b)

They would both stay lit.

c)

The light bulb to the right would stay lit, but the one to the left would turn off.

d)

They would both turn off.

86.
The accumulation of excess electric charge on an object is called
a)
Static electricity 
b)
Electric discharge
c)
Resistance
d)
Circuit 
87.
Which is the largest object in our solar system?
a)
Sun
b)
Jupiter
c)
Earth
d)
Pluto
88.
One of the main differences between the outer and inner planets is __________.
a)
The inner planets all have water
b)
the inner planets are much bigger than the outer planets
c)
the outer planets are gas planets
d)
the outer planets have rings, and the inner planets don't
89.
The order of the planets is:
a)

Mars, Venus, Earth, Mercury, Saturn, Jupiter, Uranus, Neptune

b)

Venus, Mars, Earth Jupiter, Neptune, Mercury, Saturn, Uranus

c)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus Neptune

d)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus

90.

The shadow of the Earth falls on the moon is called a __________ Eclipse

a)

Oceanic

b)

Mars

c)

Lunar

d)

Solar

91.
What are comets made of?
a)
Metals like iron and nickel
b)
Gas
c)
Hydrogen Gas
d)
Ice and rock
92.

One full orbit of an object around another object is called a ________.

a)

axis

b)

rotation

c)

revolution

d)

satellite

93.

What do we use astronomical units to measure?

a)

distances in our solar system

b)

How far our solar system is from others in our galaxy.

c)

The distances between galaxies. 

d)

The distance from one side of the universe to the other. 

94.

The material to form a star comes from

a)

Black holes

b)

Nubes

c)

neutron clouds

d)

nebula

95.

A star that has used all its hydrogen, expands and now fuses helium to carbon and oxygen

a)

Neutron Star

b)

White Dwarf

c)

Red Giant Star

d)

Black Hole

96.

What do main sequence stars use for nuclear fusion?

a)

Oxygen

b)

Hydrogen

c)

Carbon

d)

Iron

97.

Stars produce light and heat by the process of

a)

Gravity

b)

Orbiting

c)

Nuclear Fusion

d)

Combustion

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