Alloys, Metals, Acrylic and Wood

Name 3 types of manufactured wood

Plywood, MDF and Chipboard

Name the properties of Plywood

Very strong and rigid (made by gluing thin layers of wood at right angles to each other)

Name the properties of MDF

Very strong and easy to work with. Can be hazardous to cut and sand and is easily damaged by water (made by compressing and gluing bits of sawdust together)

Name the properties of Chipboard

Easy to cut. and form into shape. Poor resistance to moisture and humidity as it just soaks it up. Can break apart over time (made from small wood chips+glue)

Name 3 types of plastic

Acrylic, polyproplene and HIPS

Name the properties of acrylic and some uses of it.

Hard, smooth but can crack. Car lights, safety glasses

Name the properties of HIPS and some uses of it.

Not brittle and low cost. Casings, toys

Name the properties of polyproplene and some uses of it.

Light, tough, resistant to wear. Chairs, ropes, fasteners

Bronze

tin and copper

Stainless steel

iron and chromium

Brass

copper and zinc

Solder

tin and lead

Name two hardwoods

Oak and balsa

What are the properties of oak?

Strong, hard and tough

What are the properties of balsa?

Light and easy to work with. Soft.

Name two softwoods

Pine and white/red deal