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* Organising ideas: OI.3. OI.8 * Content descriptor: ACMMG021 (Year 1)
Activity 2
Maths
The items below frequently get put into rubbish bins and are taken to landfill. Tick to indicate the time that you think it takes each item to break down or decompose. You can then compare your guesses with the answers that your teacher gives you. Item
Correct Answer
r o e t s Bo r e p ok u S q days q weeks q months q years q hundreds of years q millions of years q forever
aluminium can
ew i ev Pr
Teac he r
apple
How Long To Decompose? q days q weeks q months q years q hundreds of years q millions of years q forever
days q weeks © Reaq d y E d P u bl i cat i ons q months q years q hundreds of years •f orr ev i e w p u r posesonl y• q millions of years
styrofoam cup
q days q weeks q months q years q hundreds of years q millions of years q forever
w ww
cardboard box
glass bottle
. te
m . u
q forever
o c . che e r o t r s super q days q weeks q months q years q hundreds of years q millions of years q forever q days q weeks q months q years q hundreds of years q millions of years q forever
wool socks
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Section 3: Sustainability
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