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Science Spring Term Examination Revision Practice

Total questions: 105

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

The purpose of a simple machine is to make work easier by allowing for a push or pull to occur over an increased distance.

a)

True

b)

False

2.

Which simple machine is a wheel on an axle or shaft that is designed to support movement and change of direction?

a)

Wheel-and-axle

b)

Wedge

c)

Pulley

d)

Lever

3.

Which simple machine consists of a sloping surface, used for raising heavy objects, or sliding objects down?

a)

Wedge

b)

Inclined Plane

c)

Pulley

d)

Screw

4.

Why are levers useful?

a)

For seesawing

b)

Allow us to measure the force of an object

c)

Helps lift weight at one point of its length

d)

All of the above

5.

Which of the items lifted below can be considered a wedge?

a)

A Pencil

b)

A hammer

c)

An axe

d)

Two inclined planes put together

6.

Which simple machine is an inclined plane that is wrapped around a pole?

a)

Screw

b)

Pulley

c)

Wedge

d)

Wheel-and-axle

7.

Why are simple machines "simple"?

a)

They reduce the effort required to perform a simple task. Less force can be applied.

b)

They are actually quite complicated.

c)

You can easily put two pieces of wood together.

d)

Splitting through wood is much faster.

8.

Which simple machine is this?

a)

Pulley

b)

Wheel-and-axle

c)

Inclined Plane

d)

Lever

9.

Where might a screw be used?

a)

A bottle cap

b)

A Lightbulb

c)

Cell Phone Charger

d)

All of the above

10.

Which simple machines are present?

a)

Wedge

b)

Wheel-and-axle

c)

Inclined Plane

d)

Lever

11.
What does endangered mean?
a)
gone forever
b)
very few of its kind left
c)
find a new home
d)
break down of dead plants
12.
Smog is what kinds of pollution?
a)
recycle
b)
water pollution
c)
land pollution
d)
air pollution
13.
Where is pollution found on Earth?
a)
in water and land
b)
only in air
c)
in air, land and water
d)
in air and water
14.
What type of pollution is caused by a bus, car or truck?
a)
air pollution
b)
land pollution
c)
water pollution
d)
garbage pollution
15.
What is one way trash and litter hurt wildlife?
a)
trash blows on their homes and make it messy
b)
animals can't smell the other animals they are looking for
c)
animals try to eat plastic and choke on them
d)
animals don't like to clean up the trash
16.
Which one can NOT be recycled?
a)
batteries
b)
Ms. Garris' favorite book
c)
plastic bottles
d)
coke cans
17.
How can one person help conserve energy?
a)
ride a bike to the store
b)
use an elevator instead of using the stairs
c)
leave the water on while you brush your teeth and use hot water
d)
drive a big car with no passengers
18.
Choose the option which a truly environmentally friendly person does.
What's the last thing you do before you leave the house?
a)
Turn off my computer... that's about it.
b)
Check to make sure I have my cell and iPod.
c)
Turn off all the lights in the house.
d)
Turn on the TV so it looks like someone's home, just in case a thief tries to break in!
19.
Choose the option which a truly environmentally friendly person does.
What do you use to carry your groceries?
a)
Paper bags
b)
Plastic bag
c)
Paper or plastic that I recycle after
d)
Re-usable canvas bags
20.
What is a landfill?
a)
Where garbage gets dumped
b)
air pollution
c)
soil pollution
d)
litter
21.

Do you ...........plastic bags at home?

a)

pollute

b)

recycle

c)

throw away

22.

What do people in your country do ............the environment?

a)

recycle

b)

damage

c)

save

d)

waste

23.

Environment is the _____________ that surround any living organism.

a)

Place

b)

People

c)

Things

d)

All of the above

e)

None of the above

24.

Landforms are found over the ________________

a)

Continents

b)

Oceans

c)

Ocean floors

d)

Both a and b

25.

The human environment does not reveal the:

a)

Activities among human beings

b)

Plants and animals that surround the human being

c)

Creations among human beings

d)

Interactions among human beings

26.

Land, water, air etc., comprise the _________ environment.

a)

natural

b)

human

c)

man-made

d)

artificial

27.

Hydrosphere is ___________

a)

Essential for all living organisms.

b)

Not essential but is beneficial for all living organiisms.

c)

Essential for all non living things

d)

Both a and b

28.

The thin layer of air that surrounds the earth is ________

a)

Hydrosphere

b)

Atmosphere

c)

Lithosphere

d)

Hemisphere

29.

The ________ holds the atmosphere around the earth.

a)

Atmospheric pressure

b)

Gravitational force of the earth

c)

Humidity

d)

Winds

30.

A thin layer of soil covers the _____________

a)

Atmosphere

b)

Hydrosphere

c)

Lithosphere

d)

All of the above

31.

Which is the life support system among the following?

a)

Transportation

b)

Music system

c)

Television

d)

Environment

32.

Which is an abiotic component of environment?

a)

Table

b)

Water

c)

Human

d)

Plants

33.

When is the World Environment day celebrated?

a)

5th January

b)

5th June

c)

5th August

d)

5th October

34.

Which one of the following is a human made environment?

a)

Mountain

b)

Road

c)

Sea

d)

Oceans

35.

What is the solid of crust of the earth called?

a)

Atmosphere

b)

Biosphere

c)

Lithosphere

d)

Hydrosphere

36.

Which is the life bearing domain on the earth?

a)

Biosphere

b)

Hydrosphere

c)

Lithosphere

d)

Atmosphere

37.

The three domains of Biosphere are:

a)

land, water and air

b)

land, plants and animals

c)

land, mountain and air

d)

land, human beings and water

38.

Which is not a natural ecosystem?

a)

Desert

b)

Aquarium

c)

Forest

d)

Mountains

39.

Which is a threat to environment?

a)

Growing plants

b)

Growing population

c)

Growing crops

d)

None of these

40.

It is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors of the environment on which they live.

a)

ecosystem

b)

biosystem

c)

subsystem

d)

multi-system

41.

It is a trade in which goods are exchanged without the use of money

a)

Barter system

b)

Bio system

c)

Eco system

d)

Micro system

42.

Lithosphere is the domain that provides us forests, grasslands, land and human settlement which is a source of _________ wealth

a)

mineral

b)

animal

c)

plant

d)

creatures

43.

What type of changes does erosion cause?

a)

Physical changes

b)

Chemical changes

c)

Electrical changes

d)

Magnetic changes

44.

The two main types of weathering are:

a)

mechanical and physical

b)

potential and kinetic

c)

chemical and physical

d)

potential and chemical

45.

Pick and example of PHYSICAL weathering:

a)

Frost wedging

b)

Acid rain

c)

Oxidation

d)

Carbonic acid

46.

Which event breaks rocks down into smaller pieces?

a)

Sedimentation

b)

Deposition

c)

Weathering

d)

Erosion

47.

In what way are weathering and erosion the same?

a)

Both move sediment from one place to another.

b)

Both break down rocks into smaller pieces

c)

Both change the Earth's surface

d)

Both leave sediment in new places

48.

Which of these would be the BEST example of chemical weathering?

a)

Limestone rocks dissolving in water

b)

Plant roots growing through concrete and splitting it

c)

Waves carrying sand away from a beach

d)

A large rock splitting into pieces because of ice

49.

Which is an example of CHEMICAL weathering?

a)

Frost wedging

b)

Animal activity

c)

Plant growth

d)

Acid rain

50.

How do the processes of weathering and deposition differ?

a)

Weathering breaks down rocks and deposition leaves them in new places

b)

Weathering has to do with air and deposition has to do with plants

c)

Weathering occurs only in summer and deposition occurs year-round

d)

Weathering can be chemical or physical and deposition is only chemical

51.

Which of these is the BEST example of physical weathering?

a)

Sediment piling up at the mouth of a river

b)

Plant roots growing through concrete and splitting it

c)

Waves carrying sand away from a beach

d)

Small rocks being carried along a river bed

52.

What would be the BEST example of erosion?

a)

Sediment piling up at the mouth of a river

b)

Plant roots growing through concrete and splitting it

c)

Waves carrying sand away from a beach

d)

A large rock splitting into pieces because of ice

53.

Which would be the BEST example of deposition?

a)

Sediment piling up at the mouth of a river

b)

Plant roots growing through concrete and splitting it

c)

Waves carrying sand away from a beach

d)

A large rock splitting into pieces because of ice

54.

... occurs when materials are worn away and transported by natural forces such as wind or water.

a)

Weathering

b)

Erosion

c)

Deposition

55.

Liquid water, wind, or ice are ...... that provoke erosion.

a)

natural disasters

b)

agents

c)

rocks

56.

Others factors that provoke erosion are...

a)

Electricity

b)

Energy

c)

Gravity and human activities

57.

The movement of soil or rock due to the force of ..... provokes erosion.

a)

energy

b)

gravity

c)

air

58.

Examples of gravitational erosion are...

a)

landslide and slums

b)

mudflows and deposition

c)

Creeps and tsunamis

59.

When rocks and soil come down a hill fast and sometimes it blocks roads, it is a ...

a)

creep

b)

landslide

c)

slump

60.

When rocks, objects, and soil come down a hill slowly, it is a ...

a)

creep

b)

landslide

c)

slump

61.

When a part of a hill is pulled from the bottom, it is a ...

a)

creep

b)

mudflow

c)

slump

62.

When a mass of a mixture of rocks, soil and water is coming down a hill, it is a ...

a)

creep

b)

mudflow

c)

slump

63.

Erosion can happen very quickly, or sometimes it takes thousands of ...

a)

rocks

b)

years

c)

water

64.

What is this?

a)

landslide

b)

mudflow

c)

creep

d)

slump

65.

What is this?

a)

landslide

b)

mudflow

c)

creep

d)

slump

66.

What is this?

a)

landslide

b)

mudflow

c)

creep

d)

slump

67.

What is this?

a)

landslide

b)

mudflow

c)

creep

d)

slump

68.

What is the process before erosion?

a)

weathering

b)

deposition

69.

What is the process after erosion?

a)

weathering

b)

deposition

70.

An example of human activities that provoke erosion is...

a)

deforestation

b)

earthquake

c)

contamination

71.

__________ happens when there are too many people living in an area.

a)

A. population

b)

B. overpopulation

c)

C. community

d)

D. A &B are correct

72.

What’s causing overpopulation?

a)

A. People are living longer now.

b)

B. People are having lots of children.

c)

C. People are moving to big cities.

d)

D. All are correct.

73.

causes algal blooms in lakes

a)

sulfur dioxide

b)

nitrous oxide

c)

carbon dioxide

d)

ammonia

74.

Part of smog that is caused by burning fossil fuels and volcanoes

a)

sulfur dioxide

b)

nitrous oxide

c)

carbon dioxide

d)

ammonia

75.
The ozone layer protects us from
a)
UV rays
b)
CFCs
c)
Increased atmospheric heat
d)
Decreased atmospheric heat
76.
The ozone layer is damaged by
a)
CFCs
b)
Increase in greenhouse gases
c)
Increased global temperatures
d)
Sulfuric and nitric acids
77.

Carbon monoxide is released from...

a)

human body

b)

plants

c)

vehicles

d)

styrofoam

78.
To help our environment, you should
 
 
  
a)
recycle, remember, and reduce.
b)
reduce, reuse, and recycle.
c)
reduce, repair, and recycle. 
d)
  reuse, replace, and recycle. 
79.
Which is NOT one of the three types of pollution?
a)
air
b)
water
c)
fire
80.
_________ means to make something smaller.
a)
reduce
b)
reuse
c)
recycle
81.
__________ means to use something again.
a)
reduce
b)
reuse
c)
recycle
82.
__________ means to use something old to make something new.
a)
reduce
b)
reuse
c)
recycle
83.
What is the greenhouse effect?
a)
The warming of a planet due to trapped radiation.
b)
The cooling of Earth due to air pollution.
c)
The heating of a solid, such as a rock.
84.

The Earth's atmosphere acts like a greenhouse that traps heat from the sun.

a)

true

b)

false

85.
What is algal bloom?
a)
Plants bloom early down stream
b)
Water becomes cloudy
c)
Too much of nutrients
d)
Extremely rapid growth of algea
86.
A rock which contains a useful mineral is call a/an
a)
gem
b)
quarry
c)
ore
d)
alloy
87.
The color of a mineral in powder form is called the mineral's 
a)
hardness
b)
specific gravity
c)
luster
d)
streak
88.
How light reflects off of a mineral is called the mineral's 
a)
luster
b)
streak
c)
cleavage
d)
fracture
89.
Why is coal not a mineral?
a)
It's not a solid
b)
It is man-made
c)
It is not inorganic
d)
It is made of carbon
90.
The following image shows what mineral property?
a)
Hardness
b)
Streak
c)
Cleavage
d)
Density
91.
Diamond has a hardness of ___ on Mohs Hardness Scale.
a)
1
b)
5
c)
8
d)
10
92.
Dull, silky, waxy, pearly, and earthy are terms that best describe which property of minerals?
a)
luster
b)
color
c)
streak
d)
cleavage
93.
By definition, a mineral has which of the following characteristic(s)?
a)
definite chemical composition
b)
crystal structure
c)
naturally occuring
d)
all of the above
94.
How do you test the hardness of a mineral? 
a)
Throw it against a wall
b)
Step on it
c)
Scratch Test
d)
Kick it until it breaks
95.
What mineral is used for pencils?
a)
Graphite
b)
Galena
c)
Magnetite
d)
Quartz
96.
What mineral is salt?
a)
quartz
b)
sulfur
c)
halite
d)
calcite
97.
A naturally occurring, inorganic solid with a crystal structure and a definite chemical composition is referring to
a)
density
b)
streak
c)
mineral
d)
non silicate mineral
98.
The solid, geometric form of a mineral produced by a repeating pattern of atoms
a)
crystal
b)
density
c)
element
d)
fracture 
99.
What mineral is the softest mineral on Moh's Hardness Scale and the main ingredient in baby powder?
a)
feldspar
b)
talc
c)
gypsum
d)
kaolinite
100.
Which mineral smells like rotten eggs?
a)
talc
b)
sulfer
c)
mica
d)
pyrite
101.
A mineral's resistance to being scratched is called?
a)
streak
b)
luster
c)
hardness
d)
heft
102.
The mineral halite is formed by 
a)
hot water solutions
b)
cooling of magma
c)
cooling of lava
d)
evaporation
103.
This narrow channel of gold intruding into the surrounding rock is called a 
a)
sill
b)
dike
c)
volcanic neck
d)
vein
104.
The mineral iron is primarily used to make
a)
jewelry
b)
tools
c)
cement
d)
glass
105.
Large crystals are going to form
a)
when lava erupts from a volcano
b)
when a shallow sea evaporates
c)
when magma underground cools off
d)
all of the above

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