Word Equations Lesson Notes
Authors: Classroom lesson material Year: 2026 Venue: Slide deck Link: Science Class pptx Tags: papers chemistry education science y7 Created: 2026-05-03T00:00:00Z Last Updated: 2026-05-03T00:00:00Z
Summary
This source teaches how to write word equations for chemical reactions, identifying reactants and products, and describes the conservation of mass. It covers common reaction patterns including combustion, displacement, and neutralization.
Core Ideas
- Word equations show reactants on the left and products on the right, connected by an arrow (→).
- Reactants are starting substances; products are new substances formed.
- Word equations represent the rearrangement of atoms without using chemical symbols.
- Common patterns include: metal + oxygen → metal oxide, acid + base → salt + water.
Teaching and Assessment Focus
- Identify reactants and products from descriptions of reactions.
- Write balanced word equations for given reactions.
- Recognize conservation of mass — atoms are rearranged, not created or destroyed.
Related Notes
Sources
sources/Word Equations PPT.pptx