Making And Using Materials Flashcards

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0
Q

Which materials from the list are flexible (bendy)

Sponge concrete glass rubber

A

Sponge and rubber

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1
Q

Which of these materials could describe the properties of a material:

Big, hard, shiny, round, dense

A

Hard, shiny, dense

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2
Q

Why is concrete used for pavements?

A

It is hard (strong)

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3
Q

Why is glass used for windows?

A

It is transparent (see through)

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4
Q

Which materials from this list are shiny, good conductors of electricity and only melt at high temperatures?

Copper, polythene, oil, gold

A

Copper and gold

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5
Q

Why are electrical wires coated in plastic?

A

Plastic is a good insulator (doesn’t let electricity pass through it)

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6
Q

What is the name given to a substance that cannot be made any simpler?

A

An element

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7
Q

What is another name for materials that are “made”

A

Synthetic

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8
Q

Which are natural and which are man made out of the following?

Polyester, cotton, silk, nylon, wool, acrylic

A

Natural - cotton, silk, wool

Made - polyester, nylon and acrylic

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9
Q

Which materials are found naturally?

Wood, slate, polythene, nylon, stone

A

Wood, slate and stone

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10
Q

Give two reasons why wellies are made from rubber?

A

Rubber is waterproof and flexible (bendy).

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11
Q

What raw material do we get petrol from?

A

Crude oil.

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12
Q

What raw materials are used to make most plastics?

A

Coal, crude oil and natural gas

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13
Q

Name two substances that can be recycled

A

Glass, paper or aluminium

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14
Q

What substances can be added to soil to help plants grow?

A

Fertilisers.

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