Font size
WorksheetsFACTORS THAT CAUSE RUSTING
Total questions: 15
Worksheet time: 8mins
Rusting occur in the presence of
air (oxygen)
water
soil
Which of the following can rust?
An investigation was carried out by year 5 pupils to study the factors that cause rusting. What is the function of anhydrous calcium chloride in this investigation?
To protect the iron nail
To increase the rate of the rusting process
To absorb the moisture in the air
To supply oxygen in the test tube
Which nail rusts first?
Nail in test tube A
Nail in test tube C
Nail in test tube E
Nail in test tube F
Rusting will occur even if there is no water added to the iron
True
False
Which paper clips will rust after a week?
Diagram shows an investigation about rusting.
Which of the following occur after a day?
R - The iron nail will rust
S - The iron nail not rust
T - The iron nail will float on the water
U- The iron nail will change the colour to reddish brown
R and T
S and T
R and U
S and U
In which container the nails rust fastest?
A
B
C
D
6.Table shows the results of an investigation
by a group of Year 4 Bakti pupils.
What is the conclusion that can be made
from the results of this investigation?
Rusty objects are made of iron.
Non-rusty objects are made of iron.
Rusty objects are brownish colour.
Rusty objects are made of plants.
9.An experiment has been carried out by a group of pupils. The results of the
experiment are recorded in Table 2.
What can be concluded from this experiment?
Nail X did not rust because exposed to the air and water.
Nail Y rusts because exposed to the air and water
Nail X did not rust because exposed to the oil layer.
Nail Z did not rust because exposed to water.
The air we breathe contains water vapour.
true
false
An iron nail is placed into a test tube. Boiled water and oil are poured into the same test tube. The setup is left for a week. What is the observation after a week?
The nail remains shiny. It does not turn rusty.
The nail becomes rusty.
There are holes in the nail.
The nail dissolves in water
An experiment is done to find the factors that cause rusting. What is the conclusion based on the observations?
Water that does not contain air causes iron to rust.
When both water and air are present, iron rusts.
Dry air causes iron to rust.
Oxygen-free water is needed for iron to rust.
Which nail will not rust?
A and C
A and B
C and B
Why the oil is added on the top of the boiled water?
to prevent air from entering the water
to absorb moisture
to absorb the air
