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Yr 9 EOS2 Exam Revision

Total questions: 67

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

An electron is

a)

positively charged

b)

neutral

c)

negatively charged

2.

atomic number is

a)

the number of protons

b)

the number of electrons

c)

the number of neutrons

d)

the location of an atom on the periodic table

3.

Atomic Mass is the number of

a)

protons and neutrons in the nucleus of an atom

b)

protons and electrons in the nucleus of an atom

c)

neutrons and electrons in the nucleus of an atom

4.

Conservation of mass means

a)

all the atoms present before a chemical reaction are not present after

b)

atoms present before chemical reactions are present after

c)

new substances and new elements are formed in a chemical reaction

5.

An elements is

a)

a substance that cannot be split into simpler substances

b)

a substance that can be split into simpler substances

6.

Signs of a chemical change include;

a)

change of colour, change of temperature, precipitate (solid) formed, gas released.

b)

change of colour, reversing back to original form, precipitate (solid) formed, gas released.

7.

The type of reaction that releases energy as heat is called

a)

endothermic

b)

exothermic

c)

respiration

d)

photosynthesis

8.

A Ph scale of7/8 is

a)

acidic

b)

neutral

c)

basic

9.

To neutralise an acid you add a

a)

acid

b)

base

c)

Ph indicator

d)

equal amount of water

10.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
11.
True or False? Neutrons have a negative charge
a)
True
b)
False
12.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
13.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
14.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
15.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
16.
Which scientific law states that an atom cannot be created or destroyed:
a)
Law of Conservation of Matter
b)
Law of Gravity
c)
Law of Conservation of Mass
d)
Law of Motion
17.

Which best describes a chemical reaction?

a)

Products --> Reactants

b)

Reactants --> Products

18.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
19.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
20.
An isotope of an element has the same number of _________, but a different number of _________.
a)
Protons, electrons
b)
Protons, neutrons
c)
Electrons, neutrons
21.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
22.

The three types of nuclear radiation in order of increasing penetrating power are

a)

alpha, beta, gamma

b)

alpha, gamma, beta

c)

beta, alpha, gamma

d)

gamma, alpha, beta

23.
The rate at which a radioactive element decays is its ____.
a)
quarter life
b)
whole life
c)
wonderful life 
d)
half life
24.
An ion with a positive charge is a/an 
a)
anion
b)
cation
25.
If I gain electrons I become
a)
Positive because I've added to my atom
b)
negative because I've added electrons
c)
same because i'm balanced
d)
equal because now I have electrons
26.

How many neutron are in the atom "K"?

a)

7

b)

2

c)

39

d)

12

27.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

28.

Identify the product(s) in this word equation

a)

Sodium

b)

Sodium chloride

c)

Sodium and Chlorine

d)

Sodium and sodium chloride

29.

The new substances formed in a chemical reaction are called

a)

Reactants

b)

Atoms

c)

Products

d)

Reagents

30.

What are the reactants in this word equation?

a)

Carbon dioxide and oxygen

b)

Carbon dioxide and water

c)

Oxygen and glucose

d)

Oxygen and water

31.

Carbon is released into the atmosphere when fossil fuels are burned.

a)

True

b)

False

32.

Global spheres operate together and flows of matter is moved between spheres.

a)

True

b)

False

33.

Most carbon on Earth is stored in rocks and sediments

a)

True

b)

False

34.

The

a)

geosphere

b)

magnetosphere

c)

lithosphere

d)

hydrosphere

35.

What are the three layers of the earth called?

a)

Crust, mantle, core

b)

Crust, mental, crow

c)

Crust, bread, loaf

d)

Crust, epi-centre, seismic

36.
The ______ was the time when humans started using machines to produce goods.
a)
scientific period
b)
Agricultural Revolution
c)
Industrial Revolution
37.

Has permafrost; in the Arctic or Antarctic

a)

taiga

b)

savanna

c)

desert

d)

tundra

38.
Has clumps of trees and seasonal rains
a)
temperate deciduous forest
b)
coniferous forest
c)
savanna
d)
temperate grassland
39.
This biome is found around the equator and is home to a large amount of biodiversity.
a)
Deserts
b)
Tropical Rain Forests
c)
Savannas
d)
Chaparral 
40.
What is this biome?
a)
Grassland
b)
Desert
41.
Areas defined by their geographical location and ecological similarity are called?
a)
ecozones
b)
biotopes
c)
biomes
d)
biodomes
42.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
43.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
44.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
45.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
46.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
47.

What are the two main reservoirs for carbon dioxide?

a)

Ocean, fossil fuels

b)

Ocean, atmosphere

c)

Atmosphere, fossil fuels

d)

Calcium Carbonate, ocean

48.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)

Hydrosphere

b)
Atmosphere
c)

Geosphere

d)

Biosphere

49.
Identify the components involved in the carbon cycle above ground.
a)

Sun

b)

Trees

c)

Animal Respiration

d)

Plant Respiration

e)

Burning Fossil Fuel/Emissions

f)

Dead Organisms

g)

Fossils and Fossil Fuels

1
2
3
4
5
6
7
1)
2)
3)
4)
5)
6)
7)
50.

The process of changing a vapor into a liquid, which occurs when warm vapor mixes with cooler air in the atmosphere

a)

Transpiration

b)

Evaporation

c)

Condensation

d)

Precipitation

51.

Plants giving off moisture and releasing water into the air

a)

Precipitation

b)

Evaporation

c)

Transpiration

d)

Runoff

52.

Water running off the land surface

a)

Evaporation

b)

Sublimation

c)

Transpiration

d)

Run-off

53.

When clouds get too heavy and water falls back to earth in the form of rain, snow, hail or other forms.

a)

Precipitation

b)

Evaporation

c)

Percolation

d)

Transpiration

54.

Changes liquid and frozen water into water vapor gas which floats up into the skies to become clouds

a)

Evaporation

b)

Precipitation

c)

Condensation

d)

Runoff

55.

 The prefix "bio" comes from a Greek word that means what?

a)

LIFE

b)

WATER

c)

AIR

d)

GROUND

56.

 The prefix "geo" comes from a Greek word that means what?

a)

LIFE

b)

WATER

c)

AIR

d)

GROUND

57.

 The prefix "atmo" comes from a Greek word that means what?

a)

LIFE

b)

WATER

c)

AIR

d)

GROUND

58.

 The prefix "hydro" comes from a Greek word that means what?

a)

LIFE

b)

WATER

c)

AIR

d)

GROUND

59.

 The prefix "cryo" comes from a Greek word that means what?

a)

FROST

b)

WATER

c)

AIR

d)

EARTH

60.

Which of the following is found in the earths Geosphere?

a)

Minerals

b)

Rocks

c)

Soil

d)

ALL of the Above

61.

Clouds can be considered part of Earth's atmosphere and the (a)   ?

62.

Identify the interaction between which two of Earth's spheres shown in the picture.

a)

Atmosphere - Biosphere

b)

Hydrosphere - Atmosphere

c)

Hydrosphere - Geosphere

d)

Geosphere - Biosphere

63.

The (a)   includes the continents, the ocean floor, all the rocks on Earth's surface, and all of the sand in the deserts? 

64.

Which sphere is composed of all the living things?

a)

atmosphere

b)

hydrosphere

c)

biosphere

d)

geosphere

65.

 

The body of air surrounding our planet is known as the (a)  

66.

When plants use energy from the sun and convert carbon dioxide from the air and water into oxygen and glucose sugars, which two main spheres are interacting?

a)

Atmosphere - Biosphere

b)

Geosphere - Atmosphere

c)

Hydrosphere - Geosphere

d)

Geosphere - Biosphere

67.

Plants and animals are part of the (a)   ?

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