One. "New substance, new properties!" Two. "Can't go back — it's a chemical change!" Three. "When bubbles, color changes, or heat show up — chemistry is happening!" Four. "Burn it, rust it, react it — it's chemically changed forever!" Five. "Cooking = chemistry! Delicious reactions in action!" Six. "Chemical changes break and form bonds — it's molecular makeover time!" Seven. "Not just a new look — it's a whole new substance!" | The City Grammar H/S School Shahdadpur

Northern Beaches, your next Chemical CleanOut event is on Saturday 10 and Sunday 11 September at Warringah Aquatic Centre car park, 1 Aquatic Drive, Frenchs Forest from 9am to 3:30pm. Bring your old paint, oils, batteries, garden chemicals and more. | NSW Household Problem Wastes

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