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Science 6 Online Revision 10: SE 4

Total questions: 110

Worksheet time: 1hrs 23mins

Name
Class
Date
1.
a push or pull
a)
force
b)
inretia
c)
gravity
2.
If a spoonful of salt is mixed in a glass of water, the water is called ________.
a)
solute
b)
solvent
c)
element
3.
The amount of force needed to move an object is measured in _________.
a)
newtons
b)
kilometers
c)
seconds
4.
It is a good conductor of heat and electricity.
a)
metalloid
b)
non-metal
c)
metal
5.
force of attraction between any two objects.
a)
gravitational Force
b)
velocity
c)
acceleration
6.
is a measure how fast an object is moving.
a)
speed
b)
velocity
c)
acceleration
7.
used to measure the force of a load.
a)
gravitational pull
b)
spring scale
c)
stopwatch
8.
carbon dioxide
a)
mixture
b)
element
c)
compound
9.
oxygen
a)
mixture
b)
element
c)
compound
10.
pizza
a)
mixture
b)
element
c)
compound
11.
Water
a)
mixture
b)
element
c)
compound
12.
salt
a)
element
b)
mixture
c)
compound
13.

Friction tends to increase as surface become smoother.

a)

True

b)

False

14.
John placed a pot of water on a stove. As the water boils, how does the state of the water change?
a)
from gas to liquid
b)
from liquid to a gas
c)
from a liquid to a solid
d)
from a solid to a liquid
15.
The state of matter in which a substance has a definite volume but no definite shape.
a)
gas
b)
liquid
c)
solid
d)
matter
16.

Heat energy traveling through space is an example of _____

a)

convection

b)

density

c)

radiation

d)

conduction

17.
What happens to particles as they cool down?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
18.
What type of material makes the best insulators?
a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
19.
What type of material makes the best conductor?
a)
Food
b)
Wood
c)
Styrofoam
d)
Metal
20.
Why does the Earth have day & night?
a)
Earth revolves around the sun
b)
Earth rotates on its axis
c)
Earth's axis is tilted
d)
The moon revolves around Earth
21.
Who studied and proposed the idea of gravity?
a)
Sir Isaac Newton
b)
Copernicus
c)
Kepler
d)
Galileo
22.

How long does it take for light to get from the Sun to the Earth?

a)

150 million years

b)

10 seconds

c)

8 minutes

d)

Sandwich

23.

A black hole is formed when...

a)

After a supernova occurs

b)

When a white dwarf turns into a black dwarf

c)

When a black dwarf turns into a black dwarf

d)

Sandwich

24.

Which planet has 2 small satellites?

a)

mars

b)

mercury

c)

venus

d)

jupiter

25.

how many days in a year

a)

266

b)

165

c)

356

d)

366

26.

Alexander Fleming noticed that bacteria growing on a plate of agar did not grow next to a mold that was growing on the same plate. He wrote in his laboratory report “The mold may be producing a substance that kills bacteria”. This statement is best described as

a)

an observation

b)

a hypothesis

c)

a generalization

d)

a conclusion

27.

Why do stars seem to twinkle?

a)

They are too hot

b)

Their size and color vary

c)

They are covered with clouds

d)

Light bends as it passes through layers of the atmosphere

28.

As a candle burns, the chemical energy stored in the wax is transformed into

a)

heat and light

b)

heat and magnetism

c)

electricity and light

d)

electricity and magnetism

29.

Which energy source is nonrenewable?

a)

solar

b)

wind

c)

biomass

d)

fossil fuels

30.
Read the graduated cylinder.
a)
24mL
b)
28mL
c)
2.4mL
d)
25mL
31.
Read the graduated cylinder.
a)
66mL
b)
6.5mL
c)
6.6mL
d)
66mL
32.
Opposite magnetic poles will
a)
Attract
b)
Repel
c)
Create friction
d)
Cause the moon phases to change
33.
A stick of butter is placed in a pot to make macaroni and cheese. The butter melts. What causes the butter to melt?
a)
heat
b)
gravity
c)
light
d)
friction
34.
If an electric circuit is left open, 
a)
Electricity will flow
b)
Electricity will not flow
c)
Electricity will flow and then stop
35.
Which earth material is best for building structures that must support heavy weight?
a)
iron
b)
wood
c)
copper
d)
plastic
36.
Magnetic poles that are alike will...
a)
attract
b)
repel
c)
generate electricity
37.
Glow sticks produce light for a short amount of time. The light from the glow stick is produced by...
a)
chemical energy
b)
heat energy
c)
magnetism
d)
gravity
38.

How an object feels to the touch is

a)

matter

b)

mass

c)

states of matter

d)

texture

39.

A bright object with a long tail of glowing gases is in orbit around the Sun. This object is most likely

a)

a planet

b)

a star

c)

an asteroid

d)

a comet

40.
The Moon ________ around the Earth.
a)
moves parallel
b)
rotates
c)
moves perpendicular
d)
revolves
41.
Day and night is caused by the _____________ of earth on its axis.
a)
revolution
b)
orbit
c)
rotation
42.

what is the law of conservation of mass?

a)

energy can be created but not destroyed

b)

energy can be either created or destroyed

c)

energy can not be created or destroyed

d)

energy can be destroyed but not created

43.

What is NOT a force?

a)

Gravity

b)

Running

c)

Pulling

d)

Upthrust

44.

What is the biggest body of water?

a)

Lakes

b)

Rivers

c)

Streams

d)

The ocean

45.

What is the smallest of these bodies of water.

a)

A pond

b)

A river

c)

A lake

46.

How does reusing paper help protect Earth?

a)

Saves money

b)

Saves time

c)

Saves trees and animals

d)

Reduces greenhouse gasses

47.

About how much of Earth's surface is covered by water?

a)

1/4

b)

1/3

c)

2/3

d)

1/2

48.

Name the separation technique

a)

Centrifuge

b)

Bunsen burner

c)

Distillation

d)

Evaporation

49.

Name the separation technique

a)

Distillation

b)

Crystallisation

c)

Magnetic Separation

d)

Condensation

50.

Name the separation technique

a)

Filtration

b)

Evaporation

c)

Distillation

d)

Separation

51.

Name the separation technique

a)

Distillation

b)

Filtration

c)

Sieving

d)

Crystallisation

52.

What separation techniques is this?

a)

Sieving

b)

Decanation

c)

Filtration

d)

Centrifugation

53.

What separation techniques is this?

a)

Sieving

b)

Decanation

c)

Filtration

d)

Centrifugation

54.

What separation techniques is this?

a)

Sieving

b)

Decanation

c)

Filtration

d)

Centrifugation

55.

What separation techniques is this?

a)

Sieving

b)

Decanation

c)

Filtration

d)

Centrifugation

56.

The most common separation technique we use in our day to day life is

a)

Hand picking

b)

Evaporation

c)

Threshing

d)

Condensation

57.

What do you call a push or pull that causes an object to move, stop, or change speed or direction?

a)

force

b)

gravity

c)

power

d)

work

58.
What do you call a force that pulls all objects toward each other?
a)
magnetism
b)
gravity
c)
friction
d)
force
59.
Which one of these things is not considered a force?
a)
magnetism
b)
friction
c)
gravity
d)
Newton
60.

What force pulls a mango down to the ground?

a)

Energy

b)

Force

c)

Friction

d)

Gravity

61.

Why is it easier for a car to travel in going down than in going up the slope?

a)

Because all objects are attracted toward the center of the Earth due to gravity.

b)

Because of the magnetic force that magnetized the car to go down easier.

c)

Because the car becomes heavier when moving up than going down.

d)

Because the frictional force causes the car harder to moves up.

62.

How can you best reduce friction between the bottom furniture and the floor?

a)

by smoothing the floor

b)

by keeping furniture on their place

c)

by applying lubricants like wax on the floor

d)

by putting wheels or rollers on the bottom or feet of furniture

63.

Which has the greatest friction?

a)

wet floor

b)

polished floor

c)

tiled floor

d)

rough floor

64.

What form of energy is needed in drying clothes?

a)

Chemical Energy

b)

Mechanical Energy

c)

Radiant Energy

d)

Sound Energy

65.

What kind of energy are coal, gasoline, petroleum and firewood contained?

a)

Chemical Energy

b)

Electrical Energy

c)

Radiant Energy

d)

Thermal Energy

66.

What machine changes electrical energy into light and sound energy?

a)
b)
c)
d)
67.

What kind of energy is represented in this picture?

a)

Nuclear Energy

b)

Thermal Energy

c)

Sound Energy

d)

Mechanical Energy

68.

What energy transformation is shown when a candle is lighted?

a)

Light to chemical

b)

Chemical to light

c)

Chemical to sound

d)

Light to mechanical

69.

What is force?

a)

The energy effect produced due to the movement of an object

b)

A pull or a push that acts upon an object

c)

The pushing effect of an object

d)

The pulling effect of an object

70.

What type of force used when you are writing?

a)

Pull

b)

Friction

c)

Push

d)

No Force

71.

Which one the activity below used pull force?

a)

Open the car's door

b)

Clicking the computer's mouse

c)

Kicking the ball

d)

Typing

72.

Which of the following activities has the same type of force as the activity shown in figure above ?

a)

Pushing a trolley

b)

Pulling a load

c)

Stretching a spring

d)

Lifting a heavy box

73.

Diagram shows the making of pottery from clay.

What is the effect of force that can be observed?

a)

Force changes the shape of an object

b)

Force moves a stationary object

c)

Force stops a moving object

d)

Force changes the speed of a moving object

74.
Name this simple machine.
a)
Lever
b)
Wedge
c)
Pulley
d)
Inclined Plane
75.
Name this simple machine. 
a)
Wheel and Axle
b)
Lever
c)
Pulley
d)
Wedge
76.

All of these are examples of a wheel and axle except:

a)

pizza cutter

b)

doorknob

c)

windmill

d)

pulley

77.

How can you reduce the amount of force required to lift an object using an inclined plane (ramp)?

a)

increase the length of the ramp

b)

increase the height of the ramp

c)

decrease the length of the ramp

78.

A lever is designed to:

a)

decrease the amount of force required to do work

b)

decrease the amount of time required to do work

c)

increase the amount of energy needed to work

d)

decrease the amount of work done

79.

A simple machine that is made up of an incline plane wrapped around a cylinder, often used to hold things together is a...

a)

lever

b)

screw

c)

wedge

d)

pulley

80.

The unit of measure for force is _____________

a)

meters

b)

joules

c)

miles per hour

d)

newtons

81.

Force is measured with a _________________

a)

barometer

b)

hygrometer

c)

spring scale

d)

meter stick

82.

An ax head is a simple machine called a wedge. How can you make the cutting edge more efficient?

a)

make it longer

b)

make it shorter

c)

make sharper

d)

make it more rounded

83.

Which ramp will require the least amount of force?

a)

A

b)

B

c)

C

d)

D

84.

_____________ are a sloping surface.

a)

pulleys

b)

inclined planes

c)

levers

d)

wheel and axles

85.

If you needed to use a lever to move a heavy object, where is the best place to place the load?

a)

next to where the force is applied

b)

directly under the fulcrum

c)

opposite end of the fulcrum

d)

near the fulcrum.

86.

Coal is often burned to produce

a)

pollution

b)

water power

c)

better roads

d)

electricity

87.

It takes ______ of years for oil to form.

a)

tens

b)

hundreds

c)

thousands

d)

millions

88.

Oil is made from

a)

dead plant and animal remains

b)

sedimentary rocks

c)

magma and lava

d)

water

89.

Nonrenewable means

a)

if it's used up, it's gone

b)

we can always make more

90.

Hydroelectric power is electricity created by

a)

water

b)

the sun

c)

burning coal

d)

burning wood

91.

Solar energy comes from

a)

the sun

b)

the moon

c)

water

d)

coal

92.

One danger of nuclear power plants is that

a)

atomic bombs are not dangerous

b)

the waste material is radioactive

c)

water creates pollution

d)

atoms are difficult to find

93.

a natural non renewable fuel such as coal, oil, or natural gas formed over a very long time in the geological past from the remains of living organisms

a)

fossil fuel

b)

hydropower

c)

geothermal

d)

wind

94.

a flammable, yellow to black liquid composed of hydrocarbons occurring naturally beneath Earth's surface

a)

petroleum (oil)

b)

wind

c)

geothermal

d)

biomass

95.

an energy resource such as trees or wind that is replaceable by natural means

a)

renewable

b)

nonrenewable

96.

An ENERGY RESOURCE is a source or supply of energy that can be used to generate electrical power to meet people's needs

a)

true

b)

false

97.

the splitting of uranium atoms to release energy.

a)

geothermal

b)

wind

c)

nuclear

d)

natural gas

98.

turbines harness the movement of air and convert it to useable energy

a)

wind

b)

biomass

c)

natural gas

d)

hydropower

99.

disposal site for solid waste

a)

landfill

b)

side of the highway

c)

the street

d)

your backyard

100.

What is an atom made of?

a)

Nucleus

b)

Nucleus and electrons

c)

Electrons

d)

Electricity

101.

What is static electricity?

a)

The movement or flow of electrons between two materials.

b)

The movement or flow of electrons in one material

c)

The movement of protons and neutrons from one material to another,

d)

The flow of electrons and protons between two materials.

102.

Which of this is an example of electric current?

a)

Electrons moving through a wire.

b)

Electrons moving from a balloon to our hair.

c)

Electrons moving from one person to another by contact.

d)

No option is correct.

103.

This circuit is...

a)

open

b)

closed

104.

This circuit is...

a)

series

b)

parallel

c)

simple

105.

This circuit is...

a)

parallel and open.

b)

Parallel and closed

c)

Series and open

d)

Series and closed

106.

This symbol is for...

a)

a light bulb

b)

a wire

c)

a switch

d)

a battery

107.

This symbol is for...

a)

a light bulb

b)

a wire

c)

a switch

d)

a battery

108.

This symbol is for...

a)

a light bulb

b)

a wire

c)

a switch

d)

a battery

109.

Which circuit is series?

a)

The one on the left.

b)

The one on the right.

110.

Batteries and food are both sources of energy. What kind of energy is stored in both of them?

a)

Chemical

b)

Sound

c)

Thermal

d)

Electrical

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