Chemistry - Acids and Alkalis

In this MEL Academy lesson your child will:

  • learn the nature of acids and alkalis
  • produce homemade indicators by his own hands
  • obtain his own ph-rainbow

Lesson time

5:00am   PST (San Francisco, Seattle, ...)
6:00am   MST (Phoenix, Denver, ...)
7:00am   CST (Chicago, Houston, ...)
8:00am   EST (New York, Toronto, ...)
1:00pm   GMT (London, ...)

Lesson duration: 45-55 minutes.

Prepare in advance

On this lesson we will conduct "Natural pH indicators" DIY experiment. Prepare the following household materials:

  Red cabbage (if you cannot find it you can use beetroot)
  Red rose pelals or hibiscus tea (if you cannot find it you can use black tea)
  Citric acid or vinegar (if you cannot find it you can use lemon juice)
  6x glasses (or 6 paper/plastic cups)
  Hot water
  2x tea spoon

MEL Experiment

If you are a subscriber of MEL Chemistry then you can conduct Magic Liquid from the Colorful chemistry chemistry set:

Colorful chemistry


This lesson is presented by Daniel Sullivan:

Daniel Sullivan

Daniel Sullivan is hugely enthusiastic and experienced ex head of science with over 20 years teaching experience. He is now running a science teacher training company, and is looking forward to engaging with students once again.