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.
NameDateTime takenScore ___ / 40
- 1.♻️ Which energy source will never run out? (a) diesel (b) sunlight (c) petrol (d) coal
- 2.♻️ Reduce, reuse or recycle: plant in old tyres? (a) reduce (b) reuse (c) recycle
- 3.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) burn, bury, forget (c) reduce, reuse, recycle (d) reuse, recycle, reduce
- 4.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reuse (b) reduce (c) recycle
- 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 3 weeks?
- 6.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reuse (c) reduce
- 7.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 5 weeks?
- 8.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 9.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 2000 bottles?
- 10.Which of these is recycle (make new things)? (a) plant in old tyres (b) refill a water bottle (c) melt glass into new jars (d) fix a dripping tap
- 11.Which of these is reuse (use again)? (a) print on both sides (b) melt cans into new cans (c) switch off unused lights (d) give old books away
- 12.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 13.Which of these is recycle (make new things)? (a) turn plastic into tiles (b) switch off unused lights (c) reuse gift paper (d) fix a dripping tap
- 14.True or false: coal is a non-renewable energy source. (a) False (b) True
- 15.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
- 16.Which of these is reduce (use less)? (a) plant in old tyres (b) print on both sides (c) melt cans into new cans (d) use a jar as a pen stand
- 17.♻️ Reduce, reuse or recycle: pulp old paper? (a) reduce (b) reuse (c) recycle
- 18.Which of these is reuse (use again)? (a) buy less packaging (b) refill a water bottle (c) melt cans into new cans (d) carry a cloth bag
- 19.True or false: flowing river water is a non-renewable energy source. (a) True (b) False
- 20.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
- 21.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 22.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 23.True or false: natural gas is a renewable energy source. (a) True (b) False
- 24.♻️ A school bench is made from 200 recycled plastic bottles. How many benches can be made from 400 bottles?
- 25.True or false: coal is a renewable energy source. (a) False (b) True
- 26.Which of these is recycle (make new things)? (a) pulp old paper (b) switch off unused lights (c) carry a cloth bag (d) use a jar as a pen stand
- 27.♻️ A project report has 50 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 28.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 1800 bottles?
- 29.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 1050 bottles?
- 30.True or false: sunlight is a renewable energy source. (a) True (b) False
- 31.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
- 32.Which of these is reuse (use again)? (a) buy less packaging (b) reuse gift paper (c) print on both sides (d) carry a cloth bag
- 33.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 6 weeks?
- 34.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 900 bottles?
- 35.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 600 bottles?
- 36.True or false: biogas from waste is a renewable energy source. (a) False (b) True
- 37.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reuse (c) reduce
- 38.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 39.True or false: diesel is a renewable energy source. (a) True (b) False
- 40.True or false: flowing river water is a renewable energy source. (a) True (b) False
Answer key
- sunlight
- reuse
- reduce, reuse, recycle
- recycle
- 6
- reduce
- 35
- renewable
- 8
- melt glass into new jars
- give old books away
- renewable
- turn plastic into tiles
- True
- 70
- print on both sides
- recycle
- refill a water bottle
- False
- False
- non-renewable
- renewable
- False
- 2
- False
- pulp old paper
- 25
- 12
- 7
- True
- 21
- reuse gift paper
- 12
- 2
- 4
- True
- reduce
- renewable
- False
- True
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