WorksheetsRusting
Total questions: 9
Worksheet time: 5mins
Rusting occur in the presence of
oxygen
water
hydrogen
Which of the following can rust?
Iron and steel objects can rust with the presence of _________ and _____________.
air
water
suitable temperature
sunlight
What are the characteristics of a rusty object?
new
reddish-brown
rough and dull
increase in mass
Which of the following methods can prevent rusting?
applying grease on objects made from iron
painting steel objects
cover steel and iron objects with a damp cloth
cover steel objects with non-rusty material
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 process only occurs when there is a presence of both water and air ( oxygen).
True
False
How do you prevent this food can from rusting?
painting
apply oil or grease
coating with plastic
plating with non rusty metal
