Why so little plastic is recycled animation
An animation that plays by itself on a loop: why so little plastic is recycled.
Organic chemistry · covers the O-Level, IGCSE, GCSE topic
Use it in your lessons
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Free guide: 12 practicals as sims, and how to run one in a lesson →
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More chemistry sims
- The acid bench: acids with metals, bases and carbonates simFour acids, eleven things to add. Watch, warm, test the gas, then name the salt by dragging its ions together. Build the three general equations (and a fourth: base with an ammonium salt), and meet the careful cases: copper, nitric acid, marble in sulfuric acid and the weak ethanoic acid.
- Reacting volumes of gases simTake a hydrocarbon and oxygen into two gas syringes, spark, cool, read, then take out the carbon dioxide with sodium hydroxide and read again. The volumes give the formula, because equal volumes of gases hold equal numbers of moles.
- Alloys: why mixing metals makes them harder simTest sixteen real samples: press a hard ball in to measure hardness, bend strips until they snap, find density by displacement and leave steels in salt water. Then drag the layers of atoms and see why different-sized atoms make it much harder for the layers to slide.
- NPK fertilisers: mix a bag and work out the percentages simScoop fertiliser salts into a bag and watch the percentages of nitrogen, phosphorus and potassium work themselves out from Mr. Hit the target cards, see what missing nutrients do to seedlings, and treat phosphate rock with acid.
- Acid–base titration simOpen the burette: pH crawls, leaps at 25.00 cm³, and phenolphthalein turns pink.
- Rate of reaction simWarm the water bath and the gas syringe fills faster, modelled with the Arrhenius equation.