Materials - Fibres

Which of these are natural fibres

• wool

• nylon

• silk

• cotton

Which of these are synthetic fibres

• lycra

• silk

• polyester

• nylon

What are natural fibres produced from?

• plants only

• animals and plants

• animals only

• crude oil

Which of these is not a property of plant fibres

• versatile

• breathable

• absorbant

• water repellant

What source of fibre is this

• wool

• polyester

• cotton

• flax

What two properties of nylon makes it suitable for ropes

• highly absorbent

• highly flammable

• high strength

• high elasticity

Which three properties of lycra make it good for sports wear?

• very elastic

• lightweight

• strong

• insulating

Where does silk come from?

• Crude oil

• plants

• caterpillar cocoons

• animal fir

Why is silk used for sleeping bag liners (three reasons)

• soft

• cool and warm

• comfortable

• does not crease

What is a blended fibre

• A fibre two layers thick

• A mixture of two different fibres

• A melted fibre

• wool