fractional distillation of crude oil and cracking to make more useful materialsĬritical thinking and problem ‑ solving are at the heart of Science and Technology when analysing problems to develop models, solutions and innovations.carbon compounds, both as fuels and feedstock, and the competing demands for limited resources.the viability of recycling of certain materials.life cycle assessment and recycling to assess environmental impacts associated with all the stages of a product’s life.KS4 Chemistry – Chemical and allied industries the production of carbon dioxide by human activity and the impact on climate.Earth as a source of limited resources and the efficacy of recycling.
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