Rusting Objects Year 5

Objects that rust made of

• aluminium

• gold

• metal

• plastic

A layer of reddish brown on surface of a metal is called

• red paint

• red dirt

• rust

• brown rust

What are the factors that causes rusting

• presence of water and oil

• presence of water and carbon dioxide

• presence of boiled water and oxygen

• presence of water and oxygen

Rusting happens more faster when the humidity is high.

• True

• False

Which nails will rust after one week?

• A

• B

• C

• D

Diagram shows a bicycle.

Which parts will get rusty if they are exposed to the water and air?

• J, L and M

• K and M

• L and M

• J and L

Diagram shows an investigation about rusting.

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

Which of the following occur after a day?

• R and T

• S and T

• R and U

• S and U

Diagram shows an object.

Which of the following objects can be

grouped in the same group as the object

above?

• Slippers

• Rattan basket

• Thumb tack

• Garbage plastic

In which container the nails rust fastest?

• A

• B

• C

• D

How do you prevent cycle chain from rusting?

• apply oil or grese

• painting

• plating iron with a layer of non rusty metals

• coating with plastic