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3rd year revision

Total questions: 153

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

Which organ of the digestive system physically breaks down food by the squeezing and churning of muscular contractions?

a)

mouth

b)

stomach

c)

esophagus

d)

small intestine

2.

The muscular tube that connects the mouth to the stomach.

a)

stomach

b)

esophagus

c)

large intestine

d)

small intestine

3.

Which organ is responsible for absorbing water from digested food?

a)

small intestine

b)

stomach

c)

large intestine

d)

mouth

4.

Digestion begins here, where food is broken into smaller pieces before entering the esophagus.

a)

large intestine

b)

stomach

c)

small intestine

d)

mouth

5.

In which organ does most of the chemical digestion of food occur?

a)

small intestine

b)

large intestine

c)

stomach

d)

mouth

6.

Which of the following organs does NOT contribute digestive juices and enzymes?

a)

liver

b)

gallbladder

c)

pancreas

d)

thyroid

7.

Which organ of the digestive system secretes pepsin and hydrochloric acid?

a)

mouth

b)

stomach

c)

esophagus

d)

small intestine

8.

The enzyme, PEPSIN, breaks down proteins into...

a)

glucose

b)

fatty acids

c)

amino acids

d)

nucleic acids

9.

Amylase is an enzyme found in the ___________ and begins breaking down which food molecule?

a)

mouth; fats

b)

stomach; fats

c)

stomach; carbohydrates

d)

mouth; carbohydrates

10.

Why do we need food to break apart the food we eat?

a)

So it can fit into our stomachs

b)

So our bodies can use the nutrients from the food

c)

So liquids can be separated from solids

d)

So that our bodies' enzymes have something to do.

11.

Chewing is an example of what type of digestion?

a)

Dental

b)

Fragmentary

c)

Chemical

d)

Mechanical

12.

What is chyme?

a)

A particular type of digestive enzymes

b)

What food is called after it has been digested by the stomach

c)

A chemically active part of the small intestine

d)

The passage that leads from the small intestine to the large intestine

13.

What is the main function of villi?

a)

They move food from the stomach to the small intestine

b)

They absorb nutrients into the bloodstream

c)

They absorb water from chyme

d)

They move food from the small intestine to the large intestine

14.

thin walled upper heart chamber which receives blood and pump blood to the ventricles.

a)

Atria (Atrium)

b)

Ventricle

c)

Aorta

d)

Lungs

15.

muscular, thick-walled lower chamber that pumps blood from the heart.

a)

Atria (Atrium)

b)

Ventricle

c)

Aorta

d)

Lungs

16.

carry blood away from the heart.

a)

Capillaries

b)

Veins

c)

Arteries

d)

Lungs

17.

carry blood towards the heart.

a)

Veins

b)

Arteries

c)

Capillaries

d)

Small Intestines

18.

connects arteries to veins, site of exchange for nutrients, waste and oxygen.

a)

Capillaries

b)

Veins

c)

Arteries

d)

Valves

19.

a fluid tissue that helps maintain homeostasis for all cells in the body. Composed of 55% plasma; 45% blood cells

a)

Plasma

b)

Lymph

c)

Blood

d)

Mucus

20.

liquid portion of blood, typically yellow, where nutrients are dissolved.

a)

Blood

b)

Plasma

c)

Lymph

d)

Mucus

21.

protein in every red blood cell that carries oxygen.

a)

Saliva

b)

Mucus

c)

Hemoglobin

d)

Goblin

22.

Hemoglobin contains (a)   , which gives blood it's red color.

23.

The smallest blood cells needed for clotting are called (a)  

24.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

25.

What is the purpose of the respiratory system?

a)

takes in oxygen and release carbon dioxide

b)

takes in carbon dioxide and releases oxygen

c)

takes in nitrogen and releases carbon dioxide

d)

takes in oxygen and releases nitrogen

26.

Where does oxygen initially enter into the body?

a)

nose and mouth

b)

eyes

c)

brain

d)

throat

27.

This area warms, moisturizes, and filters air before going to the lungs. What is it?

a)

nasal cavity

b)

nose

c)

mouth

d)

trachea

28.

What is the formal name for your throat area?

a)

pharynx

b)

larynx

c)

throat

d)

esophagus

29.

Where are your vocal chords housed and what is this area called?

a)

pharynx

b)

larynx

c)

throat

d)

trachea

30.

Your windpipe is also called the...

a)

trachea

b)

larynx

c)

pharynx

d)

esophagus

31.

What are the two branches called that branch off from your trachea and into your lungs?

a)

bronchus (bronchi)

b)

alveoli

c)

lungs

d)

trachea

32.

What are the smaller branches of the bronchi called?

a)

bronchioles

b)

alveoli

c)

ravioli

d)

lungs

33.

These tiny grape-like air sacs is where the gas exchange of oxygen and carbon dioxide happen in the lungs. What is it?

a)

alveoli

b)

lungs

c)

ravioli

d)

bronchioles

34.

What gas do plants take in that animal/humans breathe out?

a)

carbon dioxide

b)

oxygen

c)

nitrogen

d)

phosphorus

35.

What is the function of the diaphragm?

a)

the muscle that contracts and relaxes when you breathe

b)

the muscle that regulates your heart beat

c)

no function

36.

When salt completely dissolves in water, we say that salt is _______ in water.

a)

Soluble

b)

Insoluble

c)

Solvent

d)

Solute

37.

Copper (II) sulphate (a blue solid), is placed into water to form a solution. Copper (II) sulphate is also known as a(n) ________ in this simple experiment.

a)

solvent

b)

solute

c)

element

d)

suspension

38.

Common gases in our air includes carbon dioxide, water vapour, nitrogen, oxygen. Which of the following is true?

a)

our air contains elements only

b)

our air contains compounds only

c)

our air is a mixture of compounds and elements

d)

air is a solution

39.

Ozone (made of 3 oxygen molecules) and Nitrogen gas (made of 2 nitrogen molecules) are both considered as?

a)

Element

b)

Compound

c)

Solute

d)

Mixture

40.

Which of the following is a mixture? (please select more than 1 option if necessary)

a)

water

b)

salt water

c)

cold water

d)

iced lemon tea

41.

Which of the following can increase the rate of dissolving? (please select more than 1 option if necessary)

a)

increasing the temperature of the solute

b)

increase the rate of stirring the mixture

c)

shining light into the mixture

d)

placing the mixture in a fridge

42.

Icebergs float on water because

a)

Ice is less dense than water

b)

Ice is more dense than water

c)

Ice and water are both mixtures

d)

Ice and water are both elements

43.

What are the physical properties of metals?

a)

Poor conductors of electricity and heat

b)

Non-ductile and brittle

c)

Shiny and good conductors of electricity and heat

d)

Soft and opaque

44.

What are the properties of non-metals?

a)

Malleable and ductile

b)

Shiny and opaque

c)

Good conductors of electricity and heat

d)

Soft and brittle

45.

What are the properties of metals?

a)

Poor conductors of electricity and heat

b)

Non-ductile and brittle

c)

Shiny and good conductors of electricity and heat

d)

Soft and opaque

46.

Water vapor leaves a plant in the biosphere and goes into the atmosphere through

a)

transpiration

b)

respiration

c)

precipitation

d)

evaporation

47.

biosphere

a)

all the water on Earth

b)

regions that contain all the living things on Earth

c)

the envelope of gases that surrounds Earth

d)

living things on land

48.

_____ moves underground to the ocean

a)

sea water

b)

groundwater

c)

lake water

d)

rain drops

49.

atmosphere

a)

all the water on Earth

b)

regions that contain all the living things on Earth

c)

the envelope of gases that surrounds Earth

d)

living things on land

50.

____ happens when liquid turns into a gas on Earth's surface

a)

evaporation

b)

condensation

c)

respiration

d)

transpiration

51.

Which statement does NOT apply to the water cycle?

a)

it has no beginning

b)

it has no end

c)

it is continuous

d)

it very rarely changes

52.

clouds

a)

water storage areas during the water cycle

b)

places reserved for water usage by humans and animals

c)

made from water and ice that are too big to remain suspended in the air

d)

made up of water droplets or ice crystals that are so small they remain suspended in the air

53.

Precipitation that enters the soil is called

a)

ground water

b)

surface water

c)

runoff water

54.

The water that moves along the surface of the earth is called

a)

ground water

b)

surface water

c)

runoff water

55.

What is it called when water droplets form on the outside of a cool glass?

a)

Condensation

b)

Transpiration

c)

Precipitation

d)

Evaporation

56.
What step of the water cycle occurs when clouds become too heavy? 
a)
Condensation
b)
Runoff
c)
Precipitation
d)
Evaporation
57.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
58.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
59.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
60.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

61.

_____________ is an essential element of all living creatures.

a)

Gold

b)

Carbon

c)

Carbon dioxide

d)

Silver

62.

Carbon is used in the process called __________ by plants and algae to make food and the building blocks for growth.

a)

carbon cycle

b)

life

c)

photosynthesis

d)

decomposition

63.

Bacterias that decompose dead plants release _____________ back into the atmosphere.

a)

water

b)

nitrogen

c)

oxygen

d)

carbon

64.

Since the mid- 1800's, _____________ activity has significantly altered the carbon cycle.

a)

animal

b)

plant

c)

unknown

d)

human

65.

Burning fossil fuels has raised the concentration of ___________ in the atmosphere.

a)

oxygen

b)

rain

c)

carbon

d)

nitrogen

66.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
67.
Combustion is another word for _______________.
a)
a train
b)
a bus
c)
a dog
d)
burning
68.
In the carbon cycle, producers take in the gas __
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
carbon monoxide
69.

Ecology is the study of:

a)

only the living things in the environment

b)

only the nonliving things in the environment

c)

how living things interact with each other and the nonliving things in the environment

d)

scientists who perform research on living things

70.

What term do ecologists use to describe where an animal lives (an animal’s home)?

a)

Ecosystem

b)

Ecologist

c)

Habitat

d)

Population

71.

What is a species?

a)

Different animals that compete for the same resources

b)

A group of similar organisms that can reproduce with each other

c)

A group of organisms that live together

d)

A group of organisms that are physically and functionally very different from each other

72.

Which of the following is an example of a living thing?

a)

A bacterium

b)

A shell

c)

Water

d)

Sweat

73.

What type of organism can make its own food?

a)

A producer (an autotroph)

b)

A consumer (a heterotroph)

c)

A decomposer

d)

All of the above

74.

Organisms that can make their own food do so by the process of:

a)

decomposition

b)

respiration

c)

photosynthesis

d)

scavenging

75.

What is a food chain?

a)

A representation of an organism’s life cycle

b)

A way to show the feeding relationships between organisms

c)

The sequence of events that occurs during photosynthesis

d)

A way to show how animals interact with nonliving parts of the environment

76.

The first organism in a food chain is ALWAYS a:

a)

producer

b)

consumer

c)

decomposer

d)

Any of the above

77.

What is biodiversity?

a)

The different ways species reproduce

b)

The degree of variation of life on Earth

c)

A way to describe similarities between different species

d)

The process of creating new species

78.

A push or a pull that starts, stops or changes the direction of an object

a)

force

b)

energy

c)

gravity

d)

motion

79.

MASS x ACCELERATION =

a)

Force

b)

motion

c)

speed

d)

push/pull

80.

Give and example of a force

a)

Gravity

b)

weather

c)

sleeping

d)

swimming

81.

What does this measure

a)

force

b)

weight

c)

mass

82.

The SI unit for force is _______

a)

Newtons

b)

Gravity

c)

Meter

d)

Joules

83.

9.8 newtons is the constant pull of which force.

a)

Gravity

b)

wind

c)

ocean waves

d)

tornado

84.

When forces are going in the opposite direction of each other you should do what do find the net force

a)

Subtract

b)

Add

c)

Divide

d)

Multiply

85.

What happens to an object if equal forces are pushing from opposite directions?

a)

Does not move

b)

Pushed up

c)

Pushed down

d)

Explodes

86.

An object will move when the forces are

a)

balanced

b)

unequal

87.

Without air resistance objects drop,

a)

at the same time

b)

faster depending on mass

c)

depends on the object

d)

there will be no gravity

88.

What causes on object so slow down while sliding on a surface?

a)

friction

b)

inertia

c)

momentum

d)

force

89.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

90.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
91.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
92.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
93.

The energy of an object that is due to the objects motion.

a)

Mechanical Energy

b)

Potential Energy

c)

Kinetic Energy

d)

Energy

94.

The energy an object has due to its position.

a)

Energy

b)

Mechanical Energy

c)

Kinetic Energy

d)

Potential Energy

95.

Is this a speed or acceleration graph?

a)

speed

b)

acceleration

96.

What is happening at segment E?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

97.

What is happening at segment F?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

98.

What is happening at segment A?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

99.

What is happening at segment B?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

100.

Is this a speed or acceleration graph?

a)

speed

b)

acceleration

101.

The smallest particle of an element; made of electrons, protons, and neutrons

a)

Atoms

b)

Elements

c)

Molecules

d)

Products

102.

A substance produced during a chemical reaction

a)

Product

b)

Reactant

c)

Properties

103.

A substance that takes part in and undergoes change during a reaction

a)

Product

b)

Molecule

c)

Reactant

104.

A chemical reaction or process that releases heat.

a)

Endothermic

b)

Exothermic

105.

A chemical reaction or process that absorbs heat from the surroundings

a)

Endothermic

b)

Exothermic

106.

The graph above is from which type of reaction?

a)

Endothermic reaction

b)

Exothermic reaction

107.

The graph above is from which type of reaction?

a)

Endothermic reaction

b)

Exothermic Reaction

108.

Earth's _____ helps protect life from ultraviolet radiation.

a)

water

b)

oxygen

c)

ozone layer

d)

ice

109.

Earth's atmosphere is mostly made up of the gases _____ and _____.

a)

water and ice

b)

atmosphere and ozone layer

c)

oxygen and nitrogen

d)

oxygen and water

110.

14) The diagram below represents the Sun and planets of our solar system. Which planet on the above diagram represents Earth?

a)

G

b)

H

c)

K

d)

M

111.
What phase is illustrated here?
a)
1st Quarter
b)
Waning gibbous
c)
Waxing crescent
d)
New moon
112.
How long does one lunar cycle take?
a)
1 week
b)
2 weeks
c)
4 weeks
d)
1 year
113.
In which position would the Northern Hemisphere be experiencing spring?
a)
Position A
b)
Position B
c)
Position C
d)
Position D
114.
In Which position would the Southern Hemisphere experience winter?
a)
Position A
b)
Position B
c)
Position C
d)
Position D
115.
What causes the day and night cycle on Earth?
a)
Rotation of the Sun
b)
Revolution of the Earth
c)
Gravitational pull from the moon
d)
Rotation of the Earth
116.
Which of the following has the biggest impact on the seasons?
a)
Earth's rotation
b)
Tilted axis
c)
Moon's gravitational pull
d)
Pressure systems
117.

Which term describes when the moon is less illuminated each night?

a)

waxing

b)

waning

c)

wandering

d)

whining

118.
a)

Lunar eclipse

b)

solar eclipse

119.

During a solar eclipse...

a)

The sun is blocked by the moon

b)

The moon is blocked by the sun

c)

The Earth is blocked moon

120.

A lunar eclipse only happens during a ________ moon.

a)

New

b)

Full

c)

Crescent

d)

Gibbous

121.

A solar eclipse only happens during a ________ moon.

a)

New

b)

Full

c)

Crescent

d)

Gibbous

122.

During a solar eclipse...

a)

The sun is blocked by the moon

b)

The moon is blocked by the sun

c)

The Earth is blocked moon

123.
This image is an example of
a)
Lunar Eclipse
b)
Full Moon
c)
New Moon
d)
Solar Eclipse
124.

An imaginary line drawn around Earth that divides it into two halves

a)

Axis

b)

Equator

c)

Latitude

d)

Longitude

125.

Marked by the longest or shortest day of the year

a)

Equinox

b)

Rotation

c)

Revolution

d)

Solstice

126.

The path an object takes as it revolves around another object

a)

Axis

b)

Equinox

c)

Orbit

d)

Solstice

127.

The process of turning or spinning on an axis

a)

Rotation

b)

Revolution

128.

The earth is a tilted planet. What is the degree of tilt?

a)

Approximately 25 degrees

b)

Exactly 25 degrees

c)

23.5 degrees

d)

90 degrees with respect to the sun

129.

What does the earth's tilt cause?

a)

The seasons

b)

Day and Night

c)

Tsunamis

d)

Earthquakes

130.

What is the shape of the earth's orbit around the sun?

a)

Circular

b)

Elliptical (slightly oval)

c)

Square to rectangular

d)

Variable and changes with the seasons (no particular shape)

131.

What season is it at position 3 in the northern hemisphere?

a)

Summer

b)

Fall

c)

Winter

d)

Spring

132.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

133.

What unit is used to measure resistance?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

134.

What is the current in a circuit with 6 ohms of resistance and a battery containing 24 Volts?

a)

1/4 A

b)

144 A

c)

4 A

d)

0.4 A

135.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
136.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
137.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
138.

What is the formula for ohms law?

a)

1+2=3

b)

R X E = I

c)

V =I x R

d)

E= MC squared

139.
What is this symbol?
a)
resistor
b)
switch
c)
battery
d)
bulb
140.
a)

Battery

b)

Fuse

c)

Switch (closed)

d)

Switch (open)

141.
a)
Buzzer
b)
Switch (Open)
c)
Diode
d)
Horn
142.
What is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
143.
This is the symbol for a _____?
a)
LED
b)
LDR
c)
Lamp
d)
Loudspeaker
144.
a)
Wire
b)
Light
c)
Battery
d)
Switch
145.
a)
Light
b)
Battery
c)
Motor
d)
Switch (Closed)
146.

What is the following symbol represent?

a)

Wire

b)

Resistor

c)

Battery

d)

Switch

147.

What is this symbol?

a)

Switch

b)

Fuse

c)

Buzzer

d)

Cell

148.

This switch is open.

a)

True

b)

False

149.
This is the symbol for a ...
a)
Bulb
b)
Battery
c)
Horn
d)
Fuse
150.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
151.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
152.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
153.
This picture is an example of what kind of circuit?
a)
Series
b)
Complete
c)
Broken
d)
Parallel

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