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📚 Encyclopedia

86 entries, written plainly, with a diagram wherever a diagram explains it better than a paragraph.

🧪 Chemistry — 7 entries

🧪 Chemistry Acids and basesAcids give away hydrogen ions, bases accept them, and the pH scale says how far a solution leans either way. Together … 🧪 Chemistry Atoms and moleculesThe atom is the smallest piece of an element that is still that element. Join atoms together and you have a molecule —… 🧪 Chemistry Chemical reactionsAtoms rearranging into new combinations. Nothing is lost and nothing is created — which is the whole reason an equatio… 🧪 Chemistry Metals and non-metalsMetals conduct, shine, bend and lose electrons. Non-metals mostly do the opposite. The line between them is a smudge, … 🧪 Chemistry States of matterSolid, liquid and gas are the same particles in different arrangements — plus plasma, which is what most of the visibl… 🧪 Chemistry The periodic tableAll the known elements arranged so that the pattern in their behaviour becomes a pattern on a page — and the gaps in i… 🧪 Chemistry WaterTwo hydrogens and an oxygen, in a bent shape that gives the molecule a positive end and a negative one — and almost ev…

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