DT woods,metals,polymers

Fill in the blank: Alloys are composed of _______ metals.

• three or more

• only one

• one or more

• two or more

1. What is the main property of thermo polymers?

• It is cheap

• It can be reheated and reused

• Comes in many colours

• It is a natural resource

What does PVC stand for?

• Polyvinyl chloride

• Polyvinyl cholesterol

• Polyvinyl chlorine

• Polyvinyl chlorite

What is cellulose made from?

• Oil

• Plants

• Horn

• Milk

Name one property of ferrous metals.

• Magnetic

• Transparent

• Soft

• Conductive

Pine is a

• Hardwood

• Softwood

• Manmade Board

What is the name of this timber based product?

• MDF

• Chipboard

• Plywood

• Hardboard

Hardwoods come from (a)   trees that shed thier leaves in the winter.

Fill in the blank: Alloys are created to enhance the _______ of metals.

• properties

• size

• weight

• color

What are the 2 main types of plastic?

• Recyclable or non recyclable

• Coloured or clear

• thermo polymer and thermoset polymer

• recycled or not recycled