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.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 800 bottles?
- 2.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
- 3.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 4 weeks?
- 4.True or false: diesel is a non-renewable energy source. (a) True (b) False
- 5.True or false: sunlight is a non-renewable energy source. (a) False (b) True
- 6.True or false: wind is a non-renewable energy source. (a) False (b) True
- 7.♻️ Which energy source will never run out? (a) petrol (b) diesel (c) sunlight (d) coal
- 8.♻️ A family used to throw away 6 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 8 weeks?
- 9.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 4 weeks?
- 10.True or false: petrol is a renewable energy source. (a) False (b) True
- 11.♻️ Is petrol a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 12.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 13.♻️ 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
- 14.Which of these is reuse (use again)? (a) buy less packaging (b) fix a dripping tap (c) give old books away (d) turn plastic into tiles
- 15.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reduce (b) reuse (c) recycle
- 16.♻️ Reduce, reuse or recycle: buy less packaging? (a) reuse (b) reduce (c) recycle
- 17.Which of these is recycle (make new things)? (a) melt glass into new jars (b) buy less packaging (c) reuse gift paper (d) fix a dripping tap
- 18.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 1250 bottles?
- 19.♻️ A project report has 94 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 20.Which of these is reuse (use again)? (a) melt glass into new jars (b) pulp old paper (c) refill a water bottle (d) turn plastic into tiles
- 21.♻️ 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?
- 22.Which of these is reduce (use less)? (a) turn plastic into tiles (b) carry a cloth bag (c) give old books away (d) plant in old tyres
- 23.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
- 24.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 8 weeks?
- 25.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 26.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 900 bottles?
- 27.Which of these is reuse (use again)? (a) melt glass into new jars (b) print on both sides (c) switch off unused lights (d) use a jar as a pen stand
- 28.♻️ A family used to throw away 9 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
- 29.True or false: biogas from waste is a non-renewable energy source. (a) False (b) True
- 30.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reduce (c) reuse
- 31.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reduce (b) recycle (c) reuse
- 32.♻️ A family used to throw away 10 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 7 weeks?
- 33.♻️ Reduce, reuse or recycle: switch off unused lights? (a) reuse (b) reduce (c) recycle
- 34.♻️ Is natural gas a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 35.Which of these is reduce (use less)? (a) melt cans into new cans (b) refill a water bottle (c) pulp old paper (d) print on both sides
- 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.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 38.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) reduce (b) reuse (c) recycle
- 39.Which of these is recycle (make new things)? (a) print on both sides (b) plant in old tyres (c) use a jar as a pen stand (d) pulp old paper
- 40.True or false: wind is a renewable energy source. (a) False (b) True
Answer key
- 2
- recycle
- 20
- True
- False
- False
- sunlight
- 48
- 8
- False
- non-renewable
- renewable
- reduce, reuse, recycle
- give old books away
- reuse
- reduce
- melt glass into new jars
- 5
- 47
- refill a water bottle
- 84
- carry a cloth bag
- renewable
- 56
- renewable
- 2
- use a jar as a pen stand
- 18
- False
- reduce
- reduce
- 70
- reduce
- non-renewable
- print on both sides
- 33
- non-renewable
- recycle
- pulp old paper
- True
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