Acids and Alkalis resources

Chemistry, grade 9. Notes, worksheets, videos, interactive tools and revision materials for this chapter.

Notes

Study notes

The chapter's lessons are the notes — read them in order, then use the resources below.

Worksheets

Attempt every question before revealing the answer — that struggle is where learning happens.

Practice questions live inside each lesson — work through them there, then return for revision.

Videos

Hand-picked searches to find a clear video explanation of each lesson.

Revision

Can you explain each of these out loud, without looking? If not, re-read that lesson.

The pH Scale: Use the 1–14 scale to measure how acidic or alkaline a solution is.
Read each lesson's summary and re-do its practice questions from memory.