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What's covered, in curriculum order. Titles and summaries are free to browse; the full section, with worked examples, unlocks with a free account.
1. Atoms, Elements and Compounds
The basic building blocks of chemistry: atoms, elements, compounds, and mixtures.
2. Chemical Reactions & Word Equations
Recognising a chemical reaction has happened, and writing a word equation for it.
3. Rates of Reaction
What speeds up or slows down how fast a reaction happens.
4. Acids, Bases and pH
The pH scale, what happens when an acid and a base react (neutralisation), and acids' impact on the environment.
6. Fuels and Combustion
What a fuel is, complete versus incomplete combustion, and why this matters.
7. Hydrocarbons
What a hydrocarbon is, and where they come from.
10. Plastics & Fertilisers
How plastics are made from crude oil, and why plants need fertilisers.
11. Batteries & Everyday Chemistry
How a simple cell produces electricity, and chemistry's everyday presence in products.
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