YEARS
5/6
TEACHER RESOURCE - LESSON FIVE
PART 1
SUSTAINABLE SCHOOLS
HASS - GEOGRAPHY
DESIGN & TECHNOLOGIES
What is Rayon?
Rayon is a fabric made from cellulose in trees, just like paper!
DISCOVERING RAYON
THE FABRIC MADE FROM TREES!
Trees
Pulp
Pushed through
tiny holes
Thread/
Yarn
Woven �into fabric
Each fabric is different in the family or ‘Rayon’.
Modal, Lyocell & Tencel are strong and more durable.
Rayon can shrink and lose shape but can still be considered a durable fabric
How is it used?
Clothing, bedding, and more.
MATERIAL PROPERTIES OF RAYON
Renewable?
Biodegradable?
Durable?
Made from trees that are renewable plants (replanted after harvest)
Some rayon fabrics such as Lyocell & Tencel are biodegradable.
What is Plastic?
A material made from crude oil.
DISCOVERING PLASTIC
Get oil:
Extraction
Clean oil:
Refining
Heat oil:
Cracking
Join together:
Polymerisation
Make shapes:
Moulding
How is it used?
Plastic is used in packaging, toys, electronics, and many household items.
MATERIAL PROPERTIES OF PLASTIC
TYPES OF PLASTIC – COMMON TYPES INCLUDE PET (USED IN BOTTLES),
HDPE (IN MILK JUGS), AND PVC (FOR PIPES).
Renewable?
Biodegradable?
Durable?
Most are not renewable as they are made from non-renewable resources like petroleum.
Can remain in land fill for hundreds of years but can be recycled.
It is very durable but also contributes to long-lasting waste.
What is Stainless Steel?
Made from metals mined from the ground
DISCOVERING STAINLESS STEEL
Iron + Chromium + Nickel mined from Earth
Melted at 1400-1600OC
Cooled and rolled
Cut into shape
Polished
How is it used?
Food and medical products (easy to keep
clean & sterile), aerospace engineering,
construction, car and boat parts & more!
MATERIAL PROPERTIES OF STAINLESS STEEL
Renewable?
Biodegradable?
Durable?
Made from metals mined from deep in the
earth that have been a part of the Earth
since its formation 4.5 billion years ago.
Can remain in land fill for hundreds of
years but is highly recyclable.
It is very strong and long lasting.