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8G L3 Rusting

Total questions: 19

Worksheet time: 19mins

Name
Class
Date
1.

Which metals rusts?

a)

Copper

b)

manganese

c)

iron

d)

potassium

2.

What environmental element assists rusting?

a)

nitrogen

b)

oxygen

c)

carbon

d)

hydrogen

3.

A rusting bicycle

a)

physical change

b)

chemical change

4.

What conditions are required for rusting?

a)

dry cold conditions

b)

dry hot conditions

c)

hot damp conditions

5.

What is the chemical name given to Rust ?

a)

Iron dioxide

b)

Iron oxide

c)

Steel oxide

d)

Carbon dioxide

6.

What prevents Rusting

a)

Painting , Oiling , Galvinising

b)

Washing with water

7.

In which tube will the nail go rusty?

a)

The nail in tube A will go rusty.

b)

The nail in tube B will go rusty.

c)

The nail in tube C will go rusty.

8.

What metal from the list below does not corrode ?

a)

Iron

b)

Steel

c)

Gold

d)

Magnesium

9.

Choose an object that can rust.

a)

Iron spoon

b)

Straw

c)

String

d)

Aluminium pot

10.

Which of the following groups consist of rusty objects?

a)

Nail, key, board and marble

b)

Nail, marble. needle and screw

c)

Nail, key, needle and screw

d)

Marble. rubber band and clothes

11.

Two factors that cause rusting are the presence of ......... and ...........

a)

oxygen

b)

water

c)

hydrogen

d)

carbon dioxide

12.

Which of the following can rust?

a)
b)
c)
d)
13.

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?

a)

Nail X did not rust because exposed to the air and water.

b)

Nail Y rusts because exposed to the air and water

c)

Nail X did not rust because exposed to the oil layer.

d)

Nail Z did not rust because exposed to water.

14.

6.Table shows the results of an investigation

by a group of Year 5 Zircon pupils.

What is the conclusion that can be made

from the results of this investigation?

a)

Rusty objects are made of iron.

b)

Non-rusty objects are made of iron.

c)

Rusty objects are brownish colour.

d)

Rusty objects are made of plants.

15.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
16.
Which of the following is the product of the reaction of aluminium and oxygen?
a)
aluminium oxide.
b)
metal oxide
c)
aluminium ore
d)
aluminium and oxygen
17.
Which of the following reactions produces calcium oxide?
a)
calcium and oxide
b)
calcium and water
c)
calcium and air
d)
calcium and oxygen
18.
Which of the following defines oxidation?
a)
A chemical reaction where a substance gains oxygen.
b)
A chemical reaction where a substance loses oxygen.
c)
A chemical reaction where a substance loses a metal.
d)
A chemical reaction where a substance gains a metal.
19.
Which of the following is an example of an oxidation reaction?
a)
Ca  +   O2 --> CaO
b)
Na2O  + H2O --> NaOH
c)
Fe2O3   + CO --> Fe   +  CO2
d)
All of the choices are oxidation reactions.