This is the most data-heavy subtopic in CB1.

The Topic Mastery Sheet covers rate calculation with correct units, the shape and interpretation of substrate concentration vs rate graphs, and a full investigation planning framework. The error box addresses a specific phrase that appears in Edexcel rejection notes for the optimum pH question.

The Student Exam Practice Sheet (22 marks) includes: rate calculation, data table interpretation, graph explanation using Edexcel-style data, investigation planning, and a Higher Tier calculation question.

The Teacher Answer Key includes Edexcel-verbatim accept/reject notes for the optimum pH explanation and shows full worked calculations for both rate questions.

©BoxsiderResources. Licensed for single classroom use. Not for redistribution or resale.