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 500 bottles?
- 2.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reduce (c) reuse
- 3.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) reuse, recycle, reduce (c) burn, bury, forget (d) reduce, reuse, recycle
- 4.♻️ A school bench is made from 300 recycled plastic bottles. How many benches can be made from 1200 bottles?
- 5.Which of these is reduce (use less)? (a) melt glass into new jars (b) pulp old paper (c) buy less packaging (d) give old books away
- 6.Which of these is recycle (make new things)? (a) pulp old paper (b) print on both sides (c) use a jar as a pen stand (d) give old books away
- 7.♻️ A project report has 34 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 8.True or false: ocean wave energy is a non-renewable energy source. (a) True (b) False
- 9.♻️ A project report has 46 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 10.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 11.♻️ Is petrol a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 12.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
- 13.♻️ Reduce, reuse or recycle: refill a water bottle? (a) recycle (b) reuse (c) reduce
- 14.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reduce (b) recycle (c) reuse
- 15.Which of these is recycle (make new things)? (a) melt glass into new jars (b) buy less packaging (c) refill a water bottle (d) give old books away
- 16.Which of these is reduce (use less)? (a) melt cans into new cans (b) reuse gift paper (c) melt glass into new jars (d) carry a cloth bag
- 17.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 2000 bottles?
- 18.True or false: wind is a non-renewable energy source. (a) False (b) True
- 19.♻️ A project report has 24 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 20.♻️ Reduce, reuse or recycle: buy less packaging? (a) reduce (b) recycle (c) reuse
- 21.♻️ Reduce, reuse or recycle: reuse gift paper? (a) recycle (b) reduce (c) reuse
- 22.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reduce (b) recycle (c) reuse
- 23.True or false: sunlight is a non-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 1200 bottles?
- 25.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1400 bottles?
- 26.♻️ Reduce, reuse or recycle: give old books away? (a) reuse (b) reduce (c) recycle
- 27.♻️ A sustainable design … (a) protects the future (b) lasts one day (c) uses the most plastic (d) wastes water
- 28.♻️ Reduce, reuse or recycle: pulp old paper? (a) reduce (b) reuse (c) recycle
- 29.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
- 30.Which of these is recycle (make new things)? (a) print on both sides (b) carry a cloth bag (c) reuse gift paper (d) melt cans into new cans
- 31.Which of these is recycle (make new things)? (a) refill a water bottle (b) give old books away (c) turn plastic into tiles (d) buy less packaging
- 32.♻️ Which energy source will never run out? (a) diesel (b) coal (c) sunlight (d) petrol
- 33.True or false: ocean wave energy is a renewable energy source. (a) True (b) False
- 34.♻️ A project report has 52 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
- 35.Which of these is reuse (use again)? (a) buy less packaging (b) carry a cloth bag (c) melt glass into new jars (d) refill a water bottle
- 36.♻️ 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?
- 37.Which of these is reuse (use again)? (a) use a jar as a pen stand (b) carry a cloth bag (c) melt glass into new jars (d) print on both sides
- 38.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 1200 bottles?
- 39.Which of these is reuse (use again)? (a) give old books away (b) print on both sides (c) buy less packaging (d) melt cans into new cans
- 40.True or false: flowing river water is a non-renewable energy source. (a) False (b) True
Answer key
- 5
- reduce
- reduce, reuse, recycle
- 4
- buy less packaging
- pulp old paper
- 17
- False
- 23
- renewable
- non-renewable
- renewable
- reuse
- reduce
- melt glass into new jars
- carry a cloth bag
- 5
- False
- 12
- reduce
- reuse
- recycle
- False
- 6
- 4
- reuse
- protects the future
- recycle
- recycle
- melt cans into new cans
- turn plastic into tiles
- sunlight
- True
- 26
- refill a water bottle
- 70
- use a jar as a pen stand
- 12
- give old books away
- False
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