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WorksheetsBlock 5 revision quiz
Total questions: 45
Worksheet time: 23mins
Which one of the following microorganisms consists of only one cell?
Virus
Bacteria
Bread mould
Fungus
They are unable to reproduce without a host
Virus
Microscope
Protozoa
disease
Colds, influenza (flu) and chickenpox are caused by what?
Fungi
Viruses
Bacteria
Amoebas
Which of the following statements is true?
Microbes are not living organisms
Some microorganisms are beneficial
All microorganisms are dangerous to humans
There are not very many types of microorganism
Which of the following are not microorganisms?
Yeast
Mould
Bacteria
Ants
Compost bins are full of rotting organic matter, such as vegetable peelings, mouldy fruit and grass clippings. Which microorganisms help this material to decompose ?
Bacteria
Viruses
Algae
All of the above
In order to see a microbe (a single microorganism), what would you need to use?
A telescope
A magnifying glass
A microscope
A pair of glasses
Are microorganisms helpful or harmful?
helpful
harmful
both
neither
Harmful bacteria produces cheese.
True
False
A piece of bread has a tiny spot of mold growing on it. Is it safe to eat?
Yes
No
Microorganisms can be found:
in the ocean, inside and outside your body
on plants and animals
in medicine and your food
All of the above
Which of these is not true of solids?
Solids can be cut or shaped
A solid expands to fill its container
Solids will stay the same shape and size unless acted upon by a force
Solids can be grasped (held on to)
What is the boiling point of water?
0
50
100
212
When a liquid cools enough it becomes a solid. What do we call this process?
Evaporating
Condensing
Freezing
Dissolving
Which of these is not true of liquids?
The shape of a liquid does not change
A liquid takes the shape of its container
Liquids are runny and can be poured
The volume of a liquid does not change
Which of these is not true of gases?
Unless held in a sealed container, gases keep expanding in volume
A gas takes the same shape as its container
A gas will have the same volume as its container
Gases can be poured from one container to another
Which of these has the least densely-packed particles?
Solids
Liquids
Gases
Both liquids and gases
When a solid is heated, it changes into a liquid. What do we call this process?
Condensing
Freezing
Dissolving
Melting
What is the freezing point of water?
1
0
100
-10
Which has the most densely-packed particles?
Solids
Liquids
Gases
Particles are equally dense in solids, liquids and gases
Mass is the measure of how much ______ is in an object.
Density
Weight
Matter
Gravity
Weight is the measure of the force of ______ on an object.
Density
Matter
Gravity
Mass
What unit of measurement is used for mass ?
Liters
Kilograms
Meters
Newtons
What unit of measurement is used for weight ?
Liters
Kilograms
Meters
Newtons
Which measurement would be different if you were on the Moon versus on Earth?
Mass
Weight
What is the weight of a 1kg mass object on planet Earth?
1 Newton
1\6
100 Newton
10 Newton
Two object with the same volume always have the same mass.
TRUE
FALSE
What is the volume of this shape ?
20 cubic units
40 cubic units
50 cubic units
25 cubic units
What is an irreversible change?
A material changes permanently into a new material
A material changes its feel or appearance, but it is still the same material
A material changes into a new material, but it can be changed back
A material stops existing
Which of the following is an example of a reversible change?
Evaporation but not condensation
Condensation but not evaporation
Combustion
Evaporation and condensation
Burning will produce what sort of change?
An irreversible change
A reversible change
Either a reversible or an irreversible change
Neither a reversible or irreversible change
What is a reversible change?
A material changes permanently into a new material
A material changes its feel or appearance, but it is still the same material
A material changes into a new material, but it can be changed back
A material stops existing
Batteries are stores of:
Chemical energy
Electrical energy
Light energy
Thermal energy
Which of these can happen to energy?
Destroyed
Created
Converted
Non of the above
Which direction will the heat flow while this person holds a hot cup of tea?
from the cup to her hand
from her hand to the cup
no heat is transferred
True or false. Energy can be created and destroyed.
True
False
What is the name for energy stored in a hot object?
Thermal
Potential
Fire
Electrical
One example of bad thermal insulator is
paper
Plastic
Iron
Sand
An example of conductor of heat is
paper
cloth
air
aluminum
The main constituent in air is
nitrogen
oxygen
argon
water vapor
The gas which has percentage equal to 78% in air is the
oxygen
hydrogen
nitrogen
carbon dioxide
All are properties of air except
Has no taste
Has no smell
Has no weight
Has no color
21% of the air around us is composed of
H20
Helium
Oxygen
Argon
What caused the amount of carbon dioxide to decrease and the amount of oxygen to increase in the atmosphere?
Animals
Cooling
Rain
Plants
why the candle on the right turn off it's flame ?
There is fire
There is no nitrogen
There is no oxygen
There is nitrogen
