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.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reuse (b) recycle (c) reduce
- 2.Which of these is reduce (use less)? (a) turn plastic into tiles (b) melt cans into new cans (c) use a jar as a pen stand (d) switch off unused lights
- 3.True or false: natural gas is a non-renewable energy source. (a) False (b) True
- 4.♻️ A family used to throw away 6 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 11 weeks?
- 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 8 weeks?
- 6.True or false: sunlight is a renewable energy source. (a) True (b) False
- 7.♻️ A project report has 68 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 8.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) reduce, reuse, recycle (c) burn, bury, forget (d) recycle, reuse, reduce
- 9.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 1500 bottles?
- 10.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 11.True or false: flowing river water is a non-renewable energy source. (a) True (b) False
- 12.♻️ Which energy source will never run out? (a) diesel (b) coal (c) sunlight (d) petrol
- 13.Which of these is reuse (use again)? (a) use a jar as a pen stand (b) pulp old paper (c) turn plastic into tiles (d) carry a cloth bag
- 14.Which of these is reduce (use less)? (a) turn plastic into tiles (b) buy less packaging (c) melt glass into new jars (d) plant in old tyres
- 15.♻️ A sustainable design … (a) lasts one day (b) uses the most plastic (c) protects the future (d) wastes water
- 16.Which of these is reuse (use again)? (a) switch off unused lights (b) turn plastic into tiles (c) plant in old tyres (d) melt glass into new jars
- 17.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
- 18.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 19.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 1100 bottles?
- 20.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reduce (b) recycle (c) reuse
- 21.♻️ A project report has 32 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 22.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) recycle (b) reduce (c) reuse
- 23.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) reduce (c) recycle
- 24.True or false: diesel is a renewable energy source. (a) False (b) True
- 25.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 1350 bottles?
- 26.Which of these is reduce (use less)? (a) refill a water bottle (b) use a jar as a pen stand (c) give old books away (d) print on both sides
- 27.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reduce (c) reuse
- 28.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 29.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reduce (c) reuse
- 30.♻️ Reduce, reuse or recycle: give old books away? (a) reuse (b) reduce (c) recycle
- 31.True or false: flowing river water is a renewable energy source. (a) False (b) True
- 32.♻️ A project report has 96 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 33.True or false: wind is a non-renewable energy source. (a) True (b) False
- 34.True or false: biogas from waste is a non-renewable energy source. (a) True (b) False
- 35.Which of these is recycle (make new things)? (a) print on both sides (b) turn plastic into tiles (c) fix a dripping tap (d) buy less packaging
- 36.Which of these is reuse (use again)? (a) pulp old paper (b) buy less packaging (c) fix a dripping tap (d) give old books away
- 37.♻️ A project report has 20 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 38.♻️ A project report has 74 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 39.Which of these is reuse (use again)? (a) pulp old paper (b) melt cans into new cans (c) refill a water bottle (d) print on both sides
- 40.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 12 weeks?
Answer key
- reuse
- switch off unused lights
- True
- 66
- 16
- True
- 34
- reduce, reuse, recycle
- 10
- renewable
- False
- sunlight
- use a jar as a pen stand
- buy less packaging
- protects the future
- plant in old tyres
- 6
- renewable
- 11
- reduce
- 16
- recycle
- reduce
- False
- 3
- print on both sides
- reduce
- renewable
- reduce
- reuse
- True
- 48
- False
- False
- turn plastic into tiles
- give old books away
- 10
- 37
- refill a water bottle
- 60
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