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Worksheets

Year 9 Year Summary

Total questions: 172

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

What is the function of the cell membrane in plant and animal cells?

a)

Controls the movement of substances in and out of the cell

b)

Strengthens the cell and provides support to the cell

c)

Controls activities of the cell

d)

Carries out protein synthesis

2.

Which organelle is the site of aerobic respiration in the cell?

a)

Mitochondria

b)

Cytoplasm

c)

Chloroplast

d)

Ribsosome

3.

Which of the following is in a plant cell, but is not in an animal cell

a)

Vacuole

b)

Cell membrane

c)

Mitochondria

d)

Nucleus

4.

What is defined as: A cell that has specific features that allow it to carry out a particular function

a)

Specialised Cell

b)

Animal Cell

c)

Prokaryotic Cell

d)

Eukaryotic Cell

5.

Which specialised cell contain cilia which help to waft mucus along airways?

a)

Ciliated Epithelial Cell

b)

Muscle Cell

c)

Nerve Cell

d)

Root Hair cell

6.

This is a root hair cell. Why does it not contain chloroplasts?

a)

It is not a plant cell, and only plant cells contain chloroplasts

b)

It is underground so cannot absorb sunlight

c)

It doesn't need to produce glucose

d)

It doesn't need to carry out respiration

7.

This is a root hair cell. What is its function?

a)

To carry out photosynthesis and to make glucose

b)

To absorb water and minerals from the soil

c)

To move dust and microorganisms away from the lungs

d)

To transport oxygen around the body of the plant

8.

This is a root hair cell. What is its function?

a)

To carry out photosynthesis and to make glucose

b)

To absorb water and minerals from the soil

c)

To move dust and microorganisms away from the lungs

d)

To transport oxygen around the body of the plant

9.

The process of an undifferentiated cell becoming adapted to carry out a specific function is called:

a)

Differentiation

b)

Adaptation

c)

Specialised Cell

d)

Diffusion

10.

What is magnification?

a)

The degree to which an object is made to appear bigger

b)

The smallest interval measurable by an instrument

c)

How much an image can be zoomed in by

d)

How clearly you can see an image

11.

Which type of microscope has the highest resolution and magnification?

a)

Light Microscope

b)

Electron Microscope

12.

What is the correct definition of diffusion?

a)

Net movement of particles from an area of high concentration to an area of low concentration

b)

The spreading out of particles in random directions

c)

Net movement of particles from an area of low concentration to an area of high concentration

d)

Water particles moving from dilute to concentrated solution

13.

Will the oxygen molecules diffuse into or out of the cell? Why?

a)

Into the cell because going from high concentration to low concentration

b)

Out of the cell because going from high concentration to low concentration

c)

Into the cell because going from low concentration to high concentration

d)

Out of the cell because going from low concentration to high concentration

14.

Which of the following will affect the rate of diffusion? (more than one answer)

a)

Distance particles have to travel

b)

The concentration gradient

c)

The surface area

d)

The type of particle

15.

These are villi which are found inside the small intestine. What do they do?

a)

Increase the surface area of the small intestine so more diffusion can take place

b)

Decrease the surface area of the small intestine so more diffusion can take place

c)

Make it easier for food to travel around in the small intestine

d)

Increase the surface area of the small intestine so less diffusion can take place

16.

What type of cell division produces 2 identical cells?

a)

Mitosis

b)

Meiosis

c)

Differentiation

d)

Stem Cells

17.
The ___________ is the basic unit of life
a)
organ
b)
cell
c)
atom
d)
tissue
18.
Organs and tissues that perform the same function is called _____________?
a)
cells
b)
tissues 
c)
organ system
d)
organs
19.
What is the correct order of organization
a)
tissues-cells-organs-organ systems-organism
b)
cell-tissue-organs-organ systems-organism
c)
organism-cells-tissues-organ systems-organism
d)
tissues-cells-organs-organ sytems-organism
20.

What type of digestion takes place in the stomach?

a)

mechanical

b)

chemical

c)

both mechanical and chemical

21.

What enzyme is found in saliva that starts digesting carbohydrates?

a)

amylase

b)

chyme

c)

pepsin

d)

bile

22.

What chemically breaks down food into smaller molecules?

a)

teeth

b)

muscles of the stomach

c)

enzymes

23.

What does the pancreas do?

a)

produces digestive enzymes to break down proteins and fats

b)

produces sodium bicarbonate to neutralize stomach acid

c)

regulates our blood sugar levels

d)

all answers are correct

24.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
25.
What is structure A?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
26.
What is structure D?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
27.
What is structure C?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
28.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
29.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
30.

Enzymes in your body probably work best at which of the following temperatures>

a)

25oC

b)

98oC

c)

37oC

d)

210oC

31.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
32.

Which of the following are the smallest blood vessels?

a)

artery

b)

vein

c)

venule

d)

capillary

33.

The function of valves in the human circulatory system is to

a)

stimulate the heart beat.

b)

accelerate the flow of blood.

c)

prevent the backward flow of blood.

d)

serve as a cushion to prevent friction

34.

Blood vessels that carry blood away from the heart are called

a)

veins.

b)

arteries.

c)

capillaries.

35.

Aorta

a)

1

b)

2

c)

4

d)

5

36.

Left ventricle

a)

1

b)

2

c)

3

d)

4

37.

The upper chambers of the heart are ventricles.

a)

true

b)

false

38.
This chamber of the heart RECEIVES blood returning from the body
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
39.
Name the organ label # 6. 
a)
alveoli 
b)
bronchi 
c)
trachea 
d)
lungs 
40.
What is the main bone structure that protects the lungs
a)
Vertebrae
b)
Rib cage
c)
Skull
d)
Pelvis
41.
When the diaphragm contracts and moves down, the lungs are...
a)
expanding with air
b)
shrinking - pushing air out
42.

A disease that cannot be passed from person to person is

a)

Communicable

b)

Non Communicable

43.

Chemotherapy is a treatment that destroys cancer cells in a specific location

a)

True

b)

False

44.

Cardiovascular disease is a condition that reduces the strength or function of the heart or blood vessels

a)

True

b)

False

45.

Catching it from someone else is a risk factor for cancer

a)

True

b)

False

46.

Type 2 diabetes is closely linked to poor food choices, being overweight, and lack of physical activity.

a)

True

b)

False

47.

Chemotherapy is the use of powerful medicines to destroy cancer cells.

a)

True

b)

False

48.
What is the diffusion of water only across a cell or semi-permeable membrane?
a)
Osmosis
b)
Diffusion
c)
Active Transport
d)
Passive Transport
49.
What type of cellular transport uses energy?
a)
Passive Transport
b)
Active Transport
50.
Active transport requires energy because...
a)
The cell is moving something against a concentration gradient
b)
The cell is moving something with a concentration gradient
51.
In the given scenario what will happen?  An egg is placed in pure water for 48 hours.
a)
The egg will gain water and swell.
b)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
c)
The egg will lose water and shrink.
52.

Vascular tissue (tubes) responsible for the transportation of water and minerals up from the roots and around the plant.

a)

Stomata

b)

Transpiration

c)

Phloem

d)

Xylem

53.

Where is xylem found in the plant?

a)

leave -> roots -> stem

b)

roots -> stem -> leaves

c)

root hairs -> leaves -> veins

d)

stem -> roots

54.

Which element is graphene made from?

a)

Carbon

b)

Copper

c)

Hydrogen

d)

Sodium

55.

Which structure is a fullerene?

a)

A

b)

B

c)

C

d)

D

56.

What type of forces act between the ions in an ionic compound?

a)

Electrostatic

b)

Frictional

c)

Gravitational

d)

Magnetic

57.

What are TWO properties of ionic compounds?

a)

Conducts electricity when molten

b)

High melting point

c)

Low melting point

d)

Small molecules

e)

Weak bonds between particles

58.

Each carbon atoms in graphite is joined to _______ other carbon atoms

a)

Two

b)

Three

c)

Four

59.

What type of bonding holds together the atoms in graphite?

a)

ionic

b)

covalent

c)

metallic

60.

Why is graphite so soft and slippery?

a)

It is made of layers of atoms

b)

It is made of small molecules

c)

It is an ionic compound

61.

Diamond is made from what type of atoms?

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Silicon

62.

The atoms in diamond are joined together by which type of bonds?

a)

Ionic

b)

Covalent

c)

Metallic

63.

In diamond each atom is joined to _______ others

a)

two

b)

three

c)

four

64.

Diamond is suitable for the cutting end of a drill bit because it is

a)

hard

b)

shiny

c)

soft

65.

Which structure has a very low boiling point?

a)

A

b)

B

c)

C

d)

D

e)

E

66.

What type of bond is in a molecule of hydrogen chloride?

a)

Ionic

b)

Covalent

c)

Metallic

67.

What type of bonding is preset in calcium oxide?

a)

Ionic

b)

Covalent

c)

Macromolecular

d)

Metallic

68.

What type of particle is this?

a)

An ion

b)

A lattice

c)

A molecule

d)

A polymer

69.

What type of structure is C60?

a)

Diatomic

b)

Giant ionic

c)

A Fullerene

d)

Giant Metallic

70.

What type of bond is labelled A?

a)

Metallic

b)

Double

c)

Ionic

d)

Covalent

71.

This is propane. What type of bonding holds the atoms together?

a)

Ionic

b)

Covalent

c)

Metallic

72.

In silicon dioxide the bonds between atoms are

a)

Easily broken

b)

Very strong

c)

Weak

73.

What type of structure does this diagram represent?

a)

Ionic

b)

Metallic

c)

Alloy

d)

Covalent

74.

Which term would NOT apply to a metallic structure?

a)

High melting point

b)

Good insulator

c)

Delocalised electrons

d)

Malleable

75.

When can ionic substances conduct electricity?

a)

Never

b)

As a solid

c)

As a liquid

d)

As a solution

76.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
77.
If an atom loses two electrons what charge will it have?
a)
+ 2
b)
 - 2
c)
+1
d)
-1
78.

What type of structure is H20 ?

a)

Simple Covalent

b)

Giant Covalent

79.

What are the properties of giant covalent structures?

a)

Low melting and boiling points

b)

Can conduct electricity

c)

Cannot Conduct electricity

d)

High melting and boiling points

80.

Why are metals malleable?

a)

The particles are not able to slide over each other

b)

The particles are able to slide over each other

81.

Why are alloys harder than pure metals?

a)

The different sized atoms distort the layers in the structure making it easier for them to slide over each other.

b)

The different sized atoms distort the layers in the structure making to more difficult for them to slide over each other.

c)

There is no difference in hardness.

82.

Why do small molecules have low melting and boiling points?

a)

Weak forces between molecules

b)

Strong forces between molecules

c)

The covalent bonds are broken more easily than giant molecules.

d)

Weak ionic bonds

83.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
84.
In a covalent bond, one or more electrons are? 
a)
shared 
b)
lost 
c)
gained 
d)
transferred 
85.

Why are dots and crosses used to show the electrons in the bonds?

a)

To show which atoms the electrons belong to

b)

Because this is what electrons looks like

c)

To show if the electron came from a metal

d)

To show if the electrons are gained or lost

86.
What is the basis of a metallic bond?
a)
the attraction of neutral metal atoms.
b)
the attraction between protons and neutrons.
c)
the attraction between positive metal ions and interlocking electrons.
d)
the attraction between positive metal ions and free floating electrons.
87.
What does malleable mean?
a)
able to be shaped
b)
will break easily
c)
can be used for wire
d)
is shiny
88.
Which of these is NOT an alloy?
a)
bronze
b)
copper
c)
brass
d)
stainless steel
89.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
90.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
91.

Energy is measured in.....

a)

kilograms

b)

metres per second

c)

Joules

d)

metres

92.

Which energy store is missing? Magnetic, electrostatic, nuclear, gravitational, elastic, thermal, chemical and....

a)

heating

b)

lighting

c)

kinetic

d)

sounding

93.

Energy cannot be created or destroyed, it can only be _________ between the stores

a)

removed

b)

dissipated

c)

transferred

d)

stored

94.

When a kettle boils, energy is transferred from the electrostatic store to the _________________ energy store.

a)

chemical

b)

kinetic

c)

elastic

d)

thermal

95.

On a rollercoaster, the gravitational potential is at its highest/lowest when it reaches the top of the track

a)

highest

b)

lowest

96.

On a rollercoaster, gravitational energy is transferred to which other two energy stores?

a)

thermal and electrostatic

b)

kinetic and chemical

c)

kinetic and nuclear

d)

thermal and kinetic

97.

Work done is another way of saying energy is transferred. What are the units of measurement fir work done?

a)

kilograms

b)

Joules

c)

Degrees celcius

d)

Joules per kilogram degrees celcius

98.

What is the equation to work out kinetic energy?

a)

mass x velocity

b)

0.5 x mass x velocity

c)

0.5 x mass x velocity3

d)

0.5 x mass x velocity2

99.

The mass of a car is 2500kg. It travels at 20m/s. Calculate the kinetic energy.

a)

500,000J

b)

600,000J

c)

400,000J

d)

700,000J

100.

What is the equation to work out gravitational potential energy?

a)

mass x gravitational field strength x height

b)

0.5 x mass x velocity2

c)

mass x height

d)

height x gravitational field strength

101.

A book has a mass of 2.7kg. It is on a shelf that is 2.4m above the ground. The gravitational field strength is 10N/kg. Calculate the gravitational potential energy:

a)

64.7

b)

64.8

c)

64.9

d)

65.0

102.

What is the unit of measurement for mass?

a)

grams

b)

kilograms

c)

metres

d)

metres per second

103.

How much energy is needed to heat 2kg of water from 10oC to 100oc. The specific heat capacity of the water is 4200J/kg oC. Use the equation sheet to calculate the change in thermal energy.

a)

753,000J

b)

754,000J

c)

755,000J

d)

756,000J

104.

Power = ______________ ÷\div   time

a)

mass

b)

height

c)

energy

d)

work done

105.

What is the unit of measurement for Power?

a)

metres

b)

kilograms

c)

Watts

d)

Joules

106.

Conduction mainly occurs in _________

a)

solids

b)

liquids

c)

gases

107.

Conduction is where particles vibrate and transfer thermal energy along the object. Do metals have a high or low thermal conductivity?

a)

high

b)

low

108.

Insulation reduces the rate of energy transfer by heating. What methods below do we use in our homes to reduce wasted energy?

a)

double glazed windows

b)

log burners

c)

thick carpets

d)

cavity wall insulation

109.

Lubricating certain machines or bikes reduces which type of force?

a)

air resistance

b)

tension

c)

magnetic

d)

friction

110.

Efficiency = useful energy ÷\div  total energy. Torch A transfers 1200J of energy per minute. 480J of this energy is useful. Calculate the efficiency.

a)

40%

b)

41%

c)

42%

d)

50%

111.

Efficiency = useful energy ÷ total energy. A blender is 70% efficient. It has a total power output of 600W. Calculate the useful power output.

a)

410W

b)

420W

c)

430W

d)

440W

112.

Which of these are non renewable energy resources?

a)

coal, oil, gas, wind

b)

coal, oil, gas, tidal

c)

coal, oil, gas, nuclear

d)

coal, oil, gas, solar

113.

What is a negative impact of wind turbines?

a)

unreliable

b)

noisy

c)

visual pollution

d)

produce carbon dioxide gas

114.

What are the units for velocity?

a)

mph

b)

m/s

c)

m/s2

d)

km/h

115.

What is the equation linking gravitational field strength, gravitational potential energy and height?

a)

Gravitational field strength = mass x gravitational potential energy x height

b)

Gravitational potential energy = mass x gravitational field strength x height

c)

Height = mass x gravitational field strength

116.

What is the equation linking energy transferred, power and time?​

a)

Power = energy x time

b)

Power = energy / time

c)

Energy = time / power

117.

Food, batteries, fuel and muscles store which energy type?

a)

Elastic potential energy

b)

Kinetic energy

c)

Thermal energy

d)

Chemical energy

118.

Which energy store changes as height of an object changes?

a)

Kinetic energy

b)

Gravitational potential energy

c)

Elastic potential energy

d)

Sound energy

119.

Which energy store is linked with springs and catapults?

a)

Nuclear energy

b)

Light energy

c)

Kinetic energy

d)

Elastic potential energy

120.

Which two energy stores change depending on the position of an object?

a)

Electrical energy

b)

Elastic potential energy

c)

Gravitational potential energy

d)

Chemical energy

121.

What is the definition of efficiency?

a)

A measure of how much energy is wasted by an appliance

b)

A measure of how quickly energy is transferred to an appliance

c)

A measure of the energy transferred usefully to an appliance

d)

A measure of the energy given off to the surroundings by an appliance

122.

What is the equation used to calculate efficiency?

a)

Efficiency = total energy input / total energy output

b)

Efficiency = useful energy output / total energy input

c)

Efficiency = useful energy input / useful energy output

d)

Efficiency = total energy input / useful energy output

123.

Which key term is used to describe energy being spread out or wasted?

a)

Efficient

b)

Deficient

c)

Dissipate

d)

Elevate

124.

What term is used to describe a method for reducing unwanted energy transfers by reducing friction?

a)

Insulation

b)

Titration

c)

Lubrication

d)

Dissipation

125.

What is a thermal insulator?

a)

A non-conductive material

b)

A conductive material

126.

What is the law of conservation of energy?

a)

Energy is created and transferred

b)

Energy is created and stored

c)

Energy is stored and destroyed

d)

Energy is stored and transferred

127.

What is the definition of power?

a)

How much electricity passes through an appliance

b)

The amount of energy wasted by an appliance

c)

The rate of energy transfer or the rate of doing work

d)

The rate of electron transfer

128.

Which energy transfers relate to a vehicle accelerating?

a)

Increase chemical, increase elastic, increase sound

b)

Decrease chemical, decrease KE, increase thermal

c)

Decrease chemical, increase KE, increase thermal

129.

Which energy transfers relate to a boiling kettle?

a)

Decrease electrical, increase thermal, increase sound

b)

Decrease electrical, increase thermal, increase chemical

c)

Increase electrical decrease thermal, increase sound

130.

What does it mean if a resource is renewable?

a)

The resource is replenished

b)

The resource will eventually run out

c)

The resource will always release energy

d)

The resource relies on external factors

131.

What does it mean if a resource is reliable?

a)

The resource is replenished

b)

The resource will eventually run out

c)

The resource will always release energy

d)

The resource relies on external factors

132.

What does it mean if a resource is non-renewable?

a)

The resource is replenished

b)

The resource will eventually run out

c)

The resource will always release energy

d)

The resource relies on external factors

133.

Which resource is renewable?

a)

Coal

b)

Natural gas

c)

Nuclear

d)

Biofuel

134.

Which resource does not release carbon dioxide?

a)

Coal

b)

Natural gas

c)

Nuclear

d)

Biofuel

135.

What is the wasted energy output from a TV?

a)

Sound and Light

b)

Thermal

c)

Chemical and Nuclear

d)

Gravitational and Thermal

136.

Energy cannot be created or destroyed, it can only be _________ between the stores

a)

removed

b)

dissipated

c)

transferred

d)

stored

137.

Specific heat capacity = energy / (mass x change in temperature).


How much energy is needed to heat 2kg of water from 10oC to 100oC. The specific heat capacity of the water is 4200J/kg oC.

a)

753,000J

b)

754,000J

c)

755,000J

d)

756,000J

138.
a.  Energy stored in the nucleus of an atom.
a)
A. Sound Energy
b)
B. Potential Energy
c)
C. Nuclear Energy
d)
D. Thermal energy
139.
A microwave has a power rating of 1550 W. How much energy does it transfer per second?
a)
1.550 Joules
b)
15.50 Joules
c)
155.0 Joules
d)
1550 Joules
140.

A ____ converts chemical energy into kinetic energy?

a)
b)
c)
d)
141.
what is a non renewable resource?
a)
water
b)
wind
c)
coal
d)
biomass
142.
Where does most of earth`s energy come from?
a)
The sun
b)
Mars
c)
Wind
d)
Water
143.
What is an example of a renewable resource?
a)
hydroelectric
b)
oil
c)
coal
d)
fossil fuel
144.

Wind is a __________ energy resource.

a)

Non renewable

b)

Renewable

145.

Wind energy is intermittent which means what?

a)

Can use all the time

b)

Is reliable

c)

Only works some of the time

d)

Is cheap

146.

Fossil fuels take ... of years to form.

(a)  

147.

What are fossil fuels?

a)

Solar, Wind, Hydro

b)

Coal, Solar, Natural Gas

c)

Coal, Oil, Natural Gas

148.

One ADVANTAGE of using fossil fuels is that:

a)

They are better for the environment.

b)

They can produce extremely high amounts of energy.

c)

They contribute to the greenhouse effect.

d)

They will never run out.

149.

What is one DISADVANTAGE of using fossil fuels?

a)

Fossil fuels will never run out.

b)

Fossil fuels are very efficient forms of energy and are readily available, making them cheaper.

c)

Burning fossil fuels contributes to the greenhouse effect which causes global warming.

d)

Fossil fuels are better for the environment.

150.

What is one ADVANTAGE of using renewable resources?

a)

They will never run out.

b)

They are more expensive.

c)

They are bad for the environment.

151.

Geothermal energy uses heat from ____ to produce electricity.

a)

the earth

b)

coal

c)

oil

d)

natural gas

152.

Why are fossil fuels considered nonrenewable resources if they are still forming beneath the surface today?

a)

They are being formed as a type of methane which we cannot use.

b)

The fossil fuels are being broken down by a natural process.

c)

They are being formed too far beneath the surface.

d)

We are depleting the fossil fuels much faster than they can form.

153.

Type of energy that comes from the movement of the air.

a)

Solar Energy

b)

Geothermal Energy

c)

Hydroelectric Energy

d)

Wind Energy

154.

Kinetic energy is...

a)

energy carried in ultraviolet waves

b)

energy stored in food

c)

energy in motion

d)

energy from splitting an atom

155.

What two factors affect an object's kinetic energy?

a)

area and volume

b)

mass and weight

c)

weight and height

d)

mass and speed

156.

Where would this tossed baseball have the least amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

157.

Where would this tossed baseball have the greatest amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

158.

Which is the correct definition for an element?

a)

A substance made up of only one type of atom that can be broken down

b)

Two or more substances that are not chemically combined

c)

Two or more different atoms that are chemically combined

d)

A substance made up of only one type of atom that cannot be broken down

159.

C is the correct chemical symbol for which element?

a)

calcium

b)

copper

c)

carbon

d)

caesium

160.

The smallest part of an element is called...

a)

a compound

b)

a mixture

c)

an element

d)

an atom

161.

Which is the correct definition for a compound?

a)

A substance made up of only one type of atom that can be broken down

b)

Two or more substances that are not chemically combined

c)

Two or more different atoms that are chemically combined

d)

A substance made up of only one type of atom that cannot be broken down

162.

What is the missing word? The properties of a compound are __________ the elements it is made up of.

a)

the same as

b)

different to

163.

Which is correct?

a)

iron and sulfur are both metals

b)

iron and sulfur are both non metals

c)

iron is a non metal and sulfur is a metal

d)

iron is a metal and sulfur is a non metal

164.

What is the correct name for CO?

a)

carbon dioxide

b)

carbon monoxide

c)

cobalt

d)

carbon oxide

165.

Which elements are present in H2SO4?

a)

hydrogen and oxygen

b)

hydrogen, oxygen and sodium

c)

hydrogen, oxygen and sulfur

d)

hydrogen, oxygen and silicon

166.

How many atoms of aluminium are there in the chemical formula for aluminium oxide: Al2O3

a)

2

b)

3

c)

5

d)

1

167.

Which element has the chemical symbol Ni?

a)

nitrogen

b)

nickel

c)

sodium

d)

neon

168.

What is the chemical symbol for copper?

a)

C

b)

Co

c)

Cp

d)

Cu

169.

What is the chemical symbol for gold?

a)

Ag

b)

Go

c)

Gu

d)

Au

170.

Is water an element or a compound?

a)

compound

b)

element

171.

How many different elements are there in Mg(OH)2

a)

2

b)

3

c)

4

d)

5

172.

True or false: Hydrogen atoms go around in pairs called molecules

a)

True

b)

False

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