law of conservation of mass

Moles and AVogadro’s constant challenge

Mole Lab Challenge — description & class activity What it is A self-contained browser game built around the AQA GCSE Chemistry moles topic. Students play as Dr. Molly, a lab-coated mole who reacts expressively to every answer. Each session runs 10 shuffled multiple-choice questions with instant feedback, a full worked solution after every answer, and

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Simulation of Law of Relative Formular mass

Relative formular — Simulation Description Relative Formula Mass Simulation — Description & Class Activity What the simulation does Students build molecules atom by atom by clicking element tiles on the left panel. Each atom appears as a coloured 3D sphere in the builder area. The balance scale tilts in real time as the molecule gets

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Simulation of Law of conservation of mass

Law of Conservation of Mass — Simulation Description A conical flask sits on a digital lab balance. Inside the flask are marble chips (calcium carbonate, CaCO₃) in hydrochloric acid (HCl) — a classic GCSE reaction that produces carbon dioxide gas as a visible product. Students choose whether the flask is open or closed before starting.

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