Matter and chemical reactions
Particles first, then what happens when substances react, measured and written as equations.
The particle model is the foundation of school chemistry. Once students can picture particles in solids, liquids and gases, acids and bases make sense as substances with particular properties, and chemical equations become a way of counting particles that rearrange.
- States of Matter and the Particle Model
The particle model of solids, liquids and gases.
Ages 11–14 17 slides 45 min - Acids, Bases and the pH Scale
Measuring how acidic or alkaline a substance is, and neutralisation.
Ages 12–15 16 slides 45 min - Chemical Reactions and Equations
Types of reaction and balancing equations.
Ages 15–16 16 slides 45 min