K Kapnula
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Lesson 2 · grade 12+

Fire classes A–F: what extinguishes what

📖 Lesson ──▶ 🎯 Quiz — pick the translation ──▶ ✅ Lesson done

Not all fires are equal — and water does not fix all. Class A = solids (wood, paper, fabrics): water, foam, powder. B = liquids (petrol, oil, varnish): foam, powder, CO₂ — WATER SPREADS IT. C = gases (propane, methane): powder + close the valve! D = metals (magnesium, sodium): only class-D powder — water explodes. F = kitchen fats/oils (top home-fire cause!): lid, F-class extinguisher — water = steam column and fireball.

🏷 Fat fires (F) cause a third of German home fires. A glass of water in hot oil = 100× steam explosion with fireball. Remember: “fat — lid only”.
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Test yourself!
Practice the topic with the trainer — like after class
Quiz — pick the translation → 🖨 Worksheet
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