Engineering Worksheet: Sustainability

Engineering lesson 22: Sustainable engineering · Set 319 · 40 questions

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.

1. 1.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
2. 2.♻️ A project report has 14 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
3. 3.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 5 weeks?
4. 4.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1050 bottles?
5. 5.True or false: wind is a non-renewable energy source. (a) True (b) False
6. 6.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) recycle, reuse, reduce (c) burn, bury, forget (d) reduce, reuse, recycle
7. 7.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reuse (c) reduce
8. 8.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
9. 9.True or false: wind is a renewable energy source. (a) False (b) True
10. 10.True or false: coal is a non-renewable energy source. (a) True (b) False
11. 11.Which of these is reduce (use less)? (a) pulp old paper (b) print on both sides (c) turn plastic into tiles (d) plant in old tyres
12. 12.Which of these is recycle (make new things)? (a) give old books away (b) switch off unused lights (c) pulp old paper (d) buy less packaging
13. 13.♻️ A project report has 86 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
14. 14.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reduce (c) reuse
15. 15.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 750 bottles?
16. 16.Which of these is reuse (use again)? (a) melt glass into new jars (b) plant in old tyres (c) fix a dripping tap (d) switch off unused lights
17. 17.True or false: diesel is a non-renewable energy source. (a) True (b) False
18. 18.♻️ A school bench is made from 300 recycled plastic bottles. How many benches can be made from 3600 bottles?
19. 19.♻️ Is diesel a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
20. 20.♻️ A sustainable design … (a) wastes water (b) protects the future (c) uses the most plastic (d) lasts one day
21. 21.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reduce (b) recycle (c) reuse
22. 22.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 4000 bottles?
23. 23.Which of these is recycle (make new things)? (a) melt cans into new cans (b) plant in old tyres (c) refill a water bottle (d) give old books away
24. 24.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 1100 bottles?
25. 25.Which of these is recycle (make new things)? (a) reuse gift paper (b) print on both sides (c) melt glass into new jars (d) carry a cloth bag
26. 26.♻️ Is petrol a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
27. 27.Which of these is reduce (use less)? (a) melt glass into new jars (b) buy less packaging (c) turn plastic into tiles (d) plant in old tyres
28. 28.Which of these is reduce (use less)? (a) refill a water bottle (b) give old books away (c) switch off unused lights (d) plant in old tyres
29. 29.Which of these is reuse (use again)? (a) switch off unused lights (b) print on both sides (c) carry a cloth bag (d) use a jar as a pen stand
30. 30.True or false: flowing river water is a non-renewable energy source. (a) True (b) False
31. 31.True or false: petrol is a renewable energy source. (a) False (b) True
32. 32.True or false: ocean wave energy is a renewable energy source. (a) True (b) False
33. 33.♻️ Which energy source will never run out? (a) petrol (b) sunlight (c) coal (d) diesel
34. 34.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 11 weeks?
35. 35.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 12 weeks?
36. 36.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reuse (c) reduce
37. 37.Which of these is reduce (use less)? (a) refill a water bottle (b) turn plastic into tiles (c) fix a dripping tap (d) pulp old paper
38. 38.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reduce (c) reuse
39. 39.♻️ A project report has 100 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
40. 40.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reduce (b) reuse (c) recycle

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