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Year 7 & 8

RENEWABLE OR NOT?

Questions
TIME SCALES FOR REGENERATION

LO: Considering timescales for regeneration of resources

MULTIPLE CHOICE QUESTIONS

ACTIVITY

  1. Diamonds can take anywhere between 1 to 3 billion years to form!
  2. Coal is the longest at 300 million years
  3. Oil deposits are around 150 million years
  4. Jarrah trees (in the photo) take around 250 years to grow, before they are cut down
  5. Wheat takes around 6 – 8 months to grow
  6. An egg takes 1 day to make. Once a chicken is 18, they lay eggs daily.

SHORT ANSWERS

  1. List 3 renewable and 3 non-renewable resources. What is the key difference between renewable and non-renewable resources? 
  2. Explain why it is important to understand the timescale of a resource’s regeneration?
  3. Explain how resources like coal can be used to generate electricity. Draw a diagram to aid your explanation.

Research the following questions

  1. How long does a cotton plant take to grow? 
  2. How many cotton plants does it take to grow enough cotton for a tee shirt?
  3. Is this a renewable or non-renewable resource?

Western Australia is known for their mineral resources. A large portion of their income comes from mining. Iron Ore is found in the Pilbara in the “Banded Iron Formation”. These deposits were formed when oxygen levels in the atmosphere were very low (less than 2%).  

  1. How old are these deposits
  2. Is iron ore a renewable resource? Explain your answer.

WHERE NEXT?

Discover more about this topic or go back to the year 7&8 topics.

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