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.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 1200 bottles?
- 2.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 2800 bottles?
- 3.♻️ A project report has 86 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 4.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 5.♻️ Reduce, reuse or recycle: plant in old tyres? (a) reduce (b) reuse (c) recycle
- 6.Which of these is reduce (use less)? (a) use a jar as a pen stand (b) reuse gift paper (c) refill a water bottle (d) print on both sides
- 7.True or false: ocean wave energy is a renewable energy source. (a) False (b) True
- 8.True or false: coal is a renewable energy source. (a) True (b) False
- 9.Which of these is recycle (make new things)? (a) turn plastic into tiles (b) switch off unused lights (c) print on both sides (d) reuse gift paper
- 10.Which of these is reduce (use less)? (a) pulp old paper (b) switch off unused lights (c) plant in old tyres (d) use a jar as a pen stand
- 11.Which of these is reduce (use less)? (a) plant in old tyres (b) melt glass into new jars (c) use a jar as a pen stand (d) buy less packaging
- 12.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 13.♻️ A project report has 32 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 14.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 15.Which of these is reuse (use again)? (a) buy less packaging (b) pulp old paper (c) fix a dripping tap (d) plant in old tyres
- 16.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reduce, reuse, recycle (c) recycle, reuse, reduce (d) reuse, recycle, reduce
- 17.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 18.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) recycle (b) reduce (c) reuse
- 19.Which of these is recycle (make new things)? (a) buy less packaging (b) carry a cloth bag (c) reuse gift paper (d) pulp old paper
- 20.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reuse (c) reduce
- 21.True or false: biogas from waste is a renewable energy source. (a) False (b) True
- 22.Which of these is reuse (use again)? (a) carry a cloth bag (b) pulp old paper (c) melt cans into new cans (d) refill a water bottle
- 23.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 1500 bottles?
- 24.True or false: biogas from waste is a non-renewable energy source. (a) False (b) True
- 25.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
- 26.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 1800 bottles?
- 27.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 28.♻️ Which energy source will never run out? (a) coal (b) sunlight (c) petrol (d) diesel
- 29.Which of these is reuse (use again)? (a) fix a dripping tap (b) give old books away (c) melt glass into new jars (d) buy less packaging
- 30.♻️ A project report has 94 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 31.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 8 weeks?
- 32.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 33.Which of these is reuse (use again)? (a) carry a cloth bag (b) melt cans into new cans (c) use a jar as a pen stand (d) turn plastic into tiles
- 34.Which of these is reduce (use less)? (a) fix a dripping tap (b) use a jar as a pen stand (c) refill a water bottle (d) melt glass into new jars
- 35.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
- 36.♻️ A project report has 66 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 37.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reuse (c) reduce
- 38.♻️ Reduce, reuse or recycle: pulp old paper? (a) reduce (b) recycle (c) reuse
- 39.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
- 40.♻️ Reduce, reuse or recycle: reuse gift paper? (a) recycle (b) reduce (c) reuse
Answer key
- 12
- 8
- 43
- renewable
- reuse
- print on both sides
- True
- False
- turn plastic into tiles
- switch off unused lights
- buy less packaging
- renewable
- 16
- renewable
- plant in old tyres
- reduce, reuse, recycle
- renewable
- recycle
- pulp old paper
- reduce
- True
- refill a water bottle
- 6
- False
- 9
- 12
- renewable
- sunlight
- give old books away
- 47
- 16
- non-renewable
- use a jar as a pen stand
- fix a dripping tap
- 6
- 33
- reduce
- recycle
- False
- reuse
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