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Year 9 Revision

Total questions: 148

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

What does "homeo" mean?

a)

same

b)

different

c)

equal

d)

frozen

2.

What does "stasis" mean?

a)

different

b)

warped

c)

a state of equilibrium

d)

same

3.

How does your body maintain homeostasis when it's cold out?

a)

You sweat

b)

You shiver

c)

Your skin gets goose bumps

d)

Both shivering and getting goose bumps

4.

How does your body maintain homeostasis when it's hot out?

a)

You shiver

b)

You sweat

c)

You cry

d)

You breathe

5.
what is the function of control centre? 
a)
Process message and sends response message to effector
b)
Produce a respond to bring back factor value to normal condition
c)
Regulation of chemical and physical factors
d)
detects changes in stimulus and send message to control centre
6.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
7.

If you are dehydrated, in order to maintain homeostasis, you should

a)

drink water

b)

go for a run

c)

take a nap

d)

drink coffee

8.

Which of the following could help you maintain homeostasis? Choose all that apply

a)

Going to the bathroom

b)

Riding a roller coaster

c)

Sweating

d)

Eating a snack

e)

Taking a test

9.

How does sweat keep us cool?

a)

Sweat is cool, so it cools us down

b)

As sweat evaporates, it removes heat from the skin

c)

It carries heat from one part of the body to another

10.

Homeostasis is a ________ of an internal environment in organisms body to be in ________ and balance condition.

a)

repair , stable

b)

maintenance , stable

c)

repair , higher

d)

maintenance , higher

11.

What is the main function of the nervous system?

a)

to inhale oxygen and exhale carbon dioxide

b)

to break down food consumed by a person for nutrients

c)

to control the body's activities by relaying messages

d)

to control the body's movements

12.

What are the two divisions of the nervous system?

a)

Central and Lower nervous systems

b)

Central and Peripheral nervous systems

c)

Lower and Cerebral nervous systems

d)

Central and Muscular nervous systems

13.

What are the three parts of the nervous system?

a)

brain, spinal cord, nerves

b)

brain, lungs, spinal cord

c)

heart, brain, nerves

d)

brain, nerves, neurons

14.

A nerve cell is called a:

a)

neutron

b)

nerve

c)

neuron

d)

synapse

15.

The space between an axon of a neuron that is communicating with a dendrite of another neuron is called a ________________.

a)

Neuron

b)

Brain message

c)

Stimulus

d)

Synapse

16.

Senses recognize ____________ which are recognized by the brain and results in a response.

a)

Synapses

b)

Brain messages

c)

Stimuli (plural of stimulus)

d)

Cerebrums

17.

When the spinal cord responds in an emergency to a stimulus before the brain, this is called a...

a)

response

b)

synapse

c)

cerebral response

d)

reflex

18.
What part of the ear sends signals to the brain?
a)
optic nerve
b)
ear canal
c)
auditory nerve
d)
middle ear
19.
Which part of the ear contains tiny bones called the hammer, anvil, and stirrup?
a)
middle ear
b)
outer ear
c)
inner ear
d)
eardrum
20.
What happens to the eardrum when sound hits, causing transmission of sound to the inner ear?
a)
it opens
b)
it grows hair
c)
it refracts the sound
d)
it vibrates
21.
Which part of the ear acts as a funnel?
a)
middle ear
b)
outer ear
c)
inner ear
d)
cochlea
22.
In what part of the ear can damage occur to hair cells and nerve endings causing deafness?
a)
cochlea
b)
outer ear
c)
stirrup
d)
ear canal
23.
The part of the electromagnetic spectrum that humans can easily see is called _____________.
a)
visible light
b)
gamma rays
c)
microwaves
d)
eye waves
24.
A person who is farsighted can be assisted by_________________.
a)
lenses that are tinted lenses
b)
concave lenses that make light rays focus on the cornea
c)
convex lenses that make light rays converge farther toward the retina
d)
surgery that enlarges the pupil
25.
For clear vision, an image must be focused exactly on the ________________.
a)
retina
b)
pupil
c)
optic nerve
d)
lens
26.
What is the order of the path of light in the human eye?
a)
cornea, pupil, lens, retina, optic nerve, brain
b)
 lens,cornea, pupil, retina, optic nerve, brain
c)
pupil, lens, retina, optic nerve, cornea, brain
d)
brain, pupil, lens, retina, optic nerve, cornea,
27.
Which part of the ear is the first to vibrate as sound enters?
a)
cochlea
b)
auditory nerve
c)
eardrum
d)
hair cells
28.

Which of these functions are the main function of the endocrine system?

a)

To ensure that we take in oxygen through the lungs

b)

To make hormones that control growth and development

c)

To control balance, movement, and coordination

d)

To protect the body from disease caused by pathogens

29.

Release of chemical messengers are called

a)

glands

b)

muscles

c)

hormones

d)

bones

30.

These chemical messengers are synthesized and secreted by various ______________ glands

a)

nervous

b)

endocrine

c)

chemical

d)

circulatory

31.

 

Insulin is produced by

a)

the liver

b)

the pancreas

c)

the kidneys

d)

the gall bladder

32.

Which one here reduces the amount of glucose in the blood?

a)

Glucagon

b)

Insulin

c)

Glycogen

d)

ADH

33.

A hormone is _____________________.

a)

a chemical substance produced by a gland and carried by the lymph.

b)

an enzyme produced by a gland and carried by the blood.

c)

a chemical substance produced by an organ and carried by the blood.

d)

a chemical substance produced by a gland and carried by the blood.

34.

 

The main elements of the endocrine system are ______.

a)

The glands, hormones, and cell receptors

b)

The glands, nerves, and blood vessels

c)

The blood, tissue, and brain

d)

The hormones, blood, and brain

35.

Hormones cause specific effects by ______.

a)

Flooding the entire body

b)

Targeting specific parts of the brain

c)

Targeting specific groups of cells in the body

d)

Spreading through the nervous system

36.

Does the endocrine system help with the overall health of the human body?

a)

True

b)

False

37.

 

Most hormone systems use negative feedback mechanism.

a)

True

b)

False

38.

What are the smallest and simplest pathogens?

a)

virus

b)

fungi

c)

bacteria

39.

What is a combination of body defenses made up of cells, tissues, and organs that fight pathogens in the body?

a)

immunity

b)

immune system

c)

lymphocytes

40.

What is the secondary circulatory system that helps the body fight pathogens and maintain its fluid balance?

a)

lymphatic system

b)

circulatory system

c)

blood vessels

41.

What is a preparation of dead or weakened pathogens that is introduced into the body to cause an immune response?

a)

fungi

b)

vaccine

c)

antigens

42.

What are the substances that send the immune system into action?

a)

antigens

b)

antibodies

c)

vaccines

43.

What is any condition that interferes with the normal or proper functioning of the body or mind?

a)

disease

b)

antibiotics

c)

immunity

44.

What is a disease that can be spread to a person from another person, an animal, or an object?

a)

cancer

b)

chronic disease

c)

communicable disease

45.

What are specific proteins that attach to antigens, keeping them from harming the body?

a)

virus

b)

antibodies

c)

lymphocytes

46.

What is the body’s response to injury or disease, resulting in a condition of swelling, pain, heat, and redness?

a)

inflammation

b)

infection

c)

death

47.

What is the ability to resist the pathogens that cause a particular disease?

a)

defense

b)

immunity

c)

immune system

48.

What are germs that cause diseases?

a)

fungi

b)

bacteria

c)

pathogens

49.

What is a condition that happens when pathogens enter the body, multiply, and cause harm?

a)

infection

b)

inflammation

c)

pain

50.

What are the special white blood cells in the blood and lymphatic system?

a)

antigens

b)

lymphocytes

c)

t-cells

51.

All matter is made of what?

a)

energy

b)

atoms

c)

electrons

52.

The positive particles of an atom are ___________.

a)

electrons

b)

protons

c)

neutrons

53.

The center of an atom where its neutrons and protons are is called the _____________.

a)

nucleus

b)

electron cloud

c)

center

54.

An atom with atomic number 6 would have how many protons?

a)

6

b)

12

c)

3

55.

Particles in an atom that are neutral and have no charge are

a)

protons

b)

electrons

c)

neutrons

56.
True or False? Neutrons have a negative charge
a)
True
b)
False
57.

What is the atomic number for an element with three protons?

a)

6

b)

1

c)

3

58.

A particle that moves around the nucleus is called an _________.

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

59.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
60.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
61.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
62.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
63.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
64.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
65.
How many protons are in an atom of carbon?
a)
12.01
b)
8
c)
6
d)
14
66.

Different isotopes have...

a)

different masses

b)

different protons

c)

different electrons

67.

Which number here is the atomic number?

a)

5

b)

10.811

68.

Isotopes are weighted in the same way that your ____________ are weighted.

a)

bank account

b)

grades

c)

shoes

69.

Isotopes are atoms that have the same number of protons but a different number of _____________.

a)

neutrons

b)

electrons

c)

atoms

70.

The atomic weight represents the weighted average of the

a)

electrons

b)

isotopes

c)

protons

71.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

72.

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

73.

the positively charged subatomic particle contained in the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

74.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

75.

a negatively charged subatomic particle that orbits the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

76.

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

a)

Periodic Table of Elements

b)

Atomic Theory

c)

Isotopes

d)

Subatomic Particles

77.

one or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

78.

a unique number for each element that equals the number of protons in an atom of that element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

79.

the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

80.

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

81.

a row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

82.

one of several forms of a single element, which contains the same number of protons, but different numbers of neutrons

a)

isotope

b)

ion

c)

orbital

d)

nucleus

83.

an atom or group of atoms that has gained or lost one or more electrons and is now either positively or negatively charged

a)

isotope

b)

ion

c)

orbital

d)

nucleus

84.

What is the atomic number of Barium, Ba? (enlarge the periodic table)

a)

20

b)

38

c)

56

d)

88

85.

How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)

a)

Sodium has 1 proton.

b)

Sodium has 3 protons.

c)

Sodium has 11 protons

86.

An element has the mass number 12 and atomic number 6. The number of neutrons in it is:

a)

6

b)

10

c)

4

d)

8

87.

If an atom has 10 electrons, how many protons does it have?

a)

0

b)

1

c)

10

d)

5

88.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
89.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
90.
The chart scientists use to organize and classify all the known elements
a)
elements chart
b)
the chart
c)
Periodic Table of the Elements
d)
Period table
91.
Vertical columns of elements (families) on the periodic table with similar  properties
a)
groups
b)
periods
c)
quadrants
d)
rows
92.
Which element could be lustrous and brittle?
a)
A
b)
B
c)
G
d)
L
93.

What is the name of the family that is highlighted?

a)

Alkali Metal Family

b)

Halogen Family

c)

Noble Gas Family

d)

Transition Metal Family

94.
Which element has a full valence shell?
a)
F
b)
D
c)
C
d)
E
95.

Which element has 3 valence electrons?

a)

A

b)

B

c)

E

d)

C

96.
Which elements have the same number of valence electrons?
a)
A & C
b)
E & C
c)
F & A
d)
F & B
97.
Which element belongs to the group that is made up of only gases?
a)
D
b)
L
c)
E
d)
A
98.
Which elements are in the same period?
a)
A & F
b)
F, B & D
c)
E & D
d)
F & B
99.
Is silicon a metal, nonmetal or metalloid?
a)
Metal
b)
NonMetal
c)
Metalloid
100.
Is this a metal, nonmetal or metalloid?
a)
Metal
b)
Nonmetal
c)
Metalloid
101.

To which group does this atom belong?

a)

1

b)

3

c)

13

d)

11

102.
How many energy levels does an atom of Chlorine have?
a)
2
b)
3
c)
4
d)
7
103.
What is the group number of this atom?
a)
2
b)
7
c)
14
d)
15
104.
Which element has the same number of valence electrons as this element?
a)
Bromine (Br)
b)
Nitrogen (N)
c)
Calcium (Ca)
d)
Boron (B)
105.
How many valence electrons does an atom of oxygen have?
a)
2
b)
5
c)
6
d)
16
106.
List the two most reactive families on the periodic table.
a)
Alkali metals & Transition Metals
b)
Noble gases & Oxygen Family
c)
Halogens & Alkali metals
d)
Halogens & Noble gases
107.
What side of the periodic table are metals on?
a)
left
b)
right
c)
top
d)
bottom
108.
What does malleable mean?
a)
able to bend
b)
will break easily
c)
can be used for wire
d)
is shiny
109.
What does ductile mean?
a)
electricity flows easily
b)
quacks like a duck
c)
can be drawn into a wire
d)
able to bend
110.
What side of the periodic table are nonmetals on?
a)
left
b)
right 
c)
top
d)
bottom
111.
Is oxygen metal or nonmetal?
a)
metal
b)
nonmetal
112.
Is gold metal or nonmetal?
a)
metal
b)
nonmetal
113.
Which has a higher density?
a)
metal
b)
nonmetal
114.
What do metals conduct?
a)
heat
b)
electricity
c)
both
d)
neither
115.
All of these properties describe metals EXCEPT...
a)
malleable
b)
conductors
c)
brittle 
d)
luster
116.
How would this element be classified?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Metamorphic
117.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
118.
If a material can easily be drawn into the shape of a wire, it is
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
119.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
120.
A certain substance does not conduct heat or electricity, and breaks easily when hit with a hammer. What other property might this substance have?
a)
can be pulled into long wires
b)
dull surface
c)
high density
d)
malleable
121.
Which of the following elements is a metal?
a)
calcium
b)
chlorine
c)
iodine
d)
oxygen
122.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
123.
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
a)
alpha particle
b)
beta particle
c)
gamma ray
d)
positron
124.
Negatively charged particles emitted from a nucleus at a high speed are ____.  
a)
alpha particle
b)
gamma rays
c)
beta particles
d)
X rays
125.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
ions
d)
reaction partners
126.

What do these isotopes of carbon all have in common?


126C, 136C, 146C

a)

they all have the same number of neutrons & mass number

b)

they all have the same atomic number and neutrons

c)

they all have the same atomic number and electrons

d)

they all have the same number of protons, atomic number, and mass number

127.

Which type of nuclear radiation is being emitted here?

a)

Alpha

b)

beta

c)

gamma

d)

none

128.
Positively charged particles that consist of two protons and two neutrons are called
a)
alpha particles
b)
beta particles
c)
gamma rays
d)
neutron emissions
129.
In order of most to least penetrating radiation we have
a)
Alpha , Beta,  Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
130.
Which type of nuclear radiation is being emitted here?
a)
alpha
b)
beta
c)
gamma
d)
none
131.

Which of these is a use of alpha radiation?

a)

Sterilising food

b)

Smoke detectors

c)

Monitoring paper thickness

d)

Industrial tracers

132.
For which of the following problems would a scientist most likely use carbon-14? 
a)
to calculate the age of the Earth's oldest rocks
b)
to calculate the age of a piece of bone 
c)
to identify the elements that make up a rock 
d)
to identify the elements that make up a bone
133.
Radioactive tracers are useful in ____.
a)
calculating the ages of fossils 
b)
fueling nuclear reactions 
c)
determining medical problems 
d)
treating brain tumors 
134.
The major drawback to nuclear fission reactors is the difficulty of achieving safe disposal of radioactive waste products.
a)
true
b)
false
135.
A benefit to using nuclear fission power is that it:
a)
supplies a lot of electricity
b)
conserves organic fuels, like oil, coal, and wood
c)
eliminates huge quantities of sulfur dioxides, which pollute our air
d)
all of the choices
136.
Where does radioactivity have application in our lives?
a)
Medicine
b)
Energy (electricity)
c)
Agriculture
d)
All of the above
137.

Radioactive dating uses the half-life of different radioactive materials to provide information about the _______ of a sample.

a)

purity

b)

age

c)

radioactivity

d)

nuclear stability

138.

What is a use of radioactive materials in medicine?

a)

oxygen masks

b)

antibiotics

c)

tracers

d)

heat monitors

139.

How is radiation used to treat cancer?

a)

Radiation is used to stimulate the growth of cancer cells

b)

Cancer cells are bombarded with radiation and become inactive

c)

Cancer cells are burned up by radiation

d)

Radiation melts cancer cells

140.

Radioactivity can be harmful and cause disease because it affects _________.

a)

air

b)

water

c)

cells

d)

blood

141.

Nuclear medicine (like radiation used in cancer treatment) is used to both diagnose and treat different diseases.

a)

True

b)

False

142.

Suggest way that a scientist can protect themselves against exposure when handling radioactive sources.

a)

Storing sources in a lead–lined box using tongs

b)

Goggles and gloves

c)

Tie hair back

143.

Which of these is a use of alpha radiation?

a)

Sterilising food

b)

Smoke detectors

c)

Monitoring paper thickness

d)

Industrial tracers

144.
Radioactive tracers are useful in ____.
a)
calculating the ages of fossils 
b)
fueling nuclear reactions 
c)
determining medical problems 
d)
treating brain tumors 
145.

What type of radiation is used for sterilisation of medical equipment?

a)

alpha

b)

beta

c)

gamma

d)

Xray

146.

What type of radiation is used in household fire (smoke) alarms?

a)

Alpha

b)

Beta

c)

Gamma

d)

Xray

147.

What type of radiation is used in gauging thickness of cardboard?

a)

Alpha

b)

Beta

c)

Gamma

d)

Xray

148.

What type of radiation is used in irradiating food?

a)

Alpha

b)

Beta

c)

Gamma

d)

Xray

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IGS Final Review 2

quiz

Worksheet

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7th - 10th Grade