Engineering Worksheet: Sustainability
Engineer's tip (Reduce, reuse, recycle): Reduce = use less · reuse = use again · recycle = break down and remake. Renewable: sun, wind, water, biogas, waves. Non-renewable: coal, petrol, diesel, natural gas. Count savings with × and ÷: bags per week × weeks, bottles ÷ bottles per bench.
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- 1.True or false: coal is a non-renewable energy source. (a) True (b) False
- 2.Which of these is reuse (use again)? (a) give old books away (b) print on both sides (c) switch off unused lights (d) carry a cloth bag
- 3.♻️ A family used to throw away 8 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
- 4.♻️ Reduce, reuse or recycle: refill a water bottle? (a) reuse (b) recycle (c) reduce
- 5.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
- 6.♻️ A family used to throw away 9 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 7 weeks?
- 7.Which of these is recycle (make new things)? (a) plant in old tyres (b) switch off unused lights (c) fix a dripping tap (d) pulp old paper
- 8.♻️ A sustainable design … (a) uses the most plastic (b) wastes water (c) protects the future (d) lasts one day
- 9.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) recycle, reuse, reduce (c) reuse, recycle, reduce (d) burn, bury, forget
- 10.♻️ Reduce, reuse or recycle: buy less packaging? (a) reuse (b) recycle (c) reduce
- 11.♻️ Reduce, reuse or recycle: switch off unused lights? (a) reduce (b) reuse (c) recycle
- 12.♻️ A school bench is made from 300 recycled plastic bottles. How many benches can be made from 2100 bottles?
- 13.♻️ Reduce, reuse or recycle: print on both sides? (a) reuse (b) recycle (c) reduce
- 14.True or false: ocean wave energy is a renewable energy source. (a) False (b) True
- 15.♻️ Is natural gas a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 16.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 17.♻️ A project report has 38 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 18.♻️ A project report has 58 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 19.Which of these is recycle (make new things)? (a) melt glass into new jars (b) give old books away (c) print on both sides (d) fix a dripping tap
- 20.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 21.True or false: wind is a non-renewable energy source. (a) True (b) False
- 22.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 23.True or false: petrol is a renewable energy source. (a) False (b) True
- 24.Which of these is recycle (make new things)? (a) reuse gift paper (b) switch off unused lights (c) melt cans into new cans (d) plant in old tyres
- 25.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reduce (b) reuse (c) recycle
- 26.Which of these is reduce (use less)? (a) melt cans into new cans (b) pulp old paper (c) reuse gift paper (d) buy less packaging
- 27.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) reuse (b) recycle (c) reduce
- 28.True or false: natural gas is a renewable energy source. (a) True (b) False
- 29.♻️ Reduce, reuse or recycle: plant in old tyres? (a) reuse (b) reduce (c) recycle
- 30.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 31.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1750 bottles?
- 32.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) recycle (c) reuse
- 33.♻️ Reduce, reuse or recycle: pulp old paper? (a) reduce (b) recycle (c) reuse
- 34.Which of these is reuse (use again)? (a) refill a water bottle (b) pulp old paper (c) switch off unused lights (d) buy less packaging
- 35.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) recycle (c) reduce
- 36.♻️ Which energy source will never run out? (a) petrol (b) coal (c) diesel (d) sunlight
- 37.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 2450 bottles?
- 38.♻️ Is diesel a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 39.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 300 bottles?
- 40.True or false: flowing river water is a non-renewable energy source. (a) False (b) True
Answer key
- True
- give old books away
- 16
- reuse
- 20
- 63
- pulp old paper
- protects the future
- reduce, reuse, recycle
- reduce
- reduce
- 7
- reduce
- True
- non-renewable
- renewable
- 19
- 29
- melt glass into new jars
- non-renewable
- False
- renewable
- False
- melt cans into new cans
- reuse
- buy less packaging
- recycle
- False
- reuse
- renewable
- 5
- recycle
- recycle
- refill a water bottle
- reduce
- sunlight
- 7
- non-renewable
- 3
- False
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