Material science year 4

What material is this Tyre made of?

What material is this spoon made of?

Look at the picture. What material is this Chair ?

A raincoat is made from plastic because plastic is

• waterproof

• rough

• weak

• observant

Here is the properties of materials. If we can see through it, it called....

• strong

• observant

• flexible

• transparent

Which is the best material for making a car windscreen?give a reason for your answer. (This question requires the knowledge of light and materials)

• ceramic. It does not allow light to pass through.

• metal.it allows all light to pass through.

• glass. It is transparent and allows light to pass through

The following shows a picture of a hammer. The part marked X should be made of ______________. State a reason for your answer.

• Steel. It is strong and can withstand heavy knocks.

• Glass. It is waterproof.

• Ceramic. It is a poor conductor of heat.

• Aluminium. It is a good conductor of heat.

Which of the following objects is produced from basic source of plant?

• 
• 
• 
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Animal P produces fine thread which is used to silk scarf. What is animal P ?

• Cow

• Sheep

• Spider

• Silkworm

What is the basic source of this object?

• Plants

• Animals

• Petroleum