Loading…
Loading…
You learn how to tell acids from bases using simple tests and indicator colours. This helps you make sense of everyday substances like soaps, juices and cleaning agents.
You should already know that substances can be mixed with water to form solutions. It also helps if you can read simple colour changes and small number scales.
One question from this skill's own question bank, shown with its full working.
Litmus paper turns which colour in an acid?
Working: Acids turn blue litmus red.
This topic normally appears in Junior High School science as part of work on substances, simple chemical properties and everyday applications. It supports BECE preparation by building confidence with indicator questions and basic classification tasks.
Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.
Other JHS Acids, Bases & Ecosystems skills in Science, at the same point in the course.
6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.