What this lesson teaches
Children learn to identify acidic and basic substances using natural indicators. This hands-on experience solidifies their understanding of pH levels and chemical properties through visual changes in color.
Science in Action
Can you finish acid-base indicator adventure in about 30 min?
Acid-Base Indicator Adventure
You will children learn to identify acidic and basic substances using natural indicators.
Duration30 min
Age GroupAges 15–16
DifficultyBeginner
SubjectScience
See how this hands-on lesson works
Sign in to start the full activity flow, save this lesson, print a learner version, and track XP. The preview below is public so parents and educators can evaluate the activity before joining.
What you need
How the activity runs
The learning connection
Using natural items like turmeric engages children in embodied cognition as they mix and observe reactions, making the abstract concept of pH tangible and memorable through sensory experiences and immediate visual feedback.
Try it with your learner
1. Gather 1 tsp of turmeric powder and 200 ml of water. 2. Boil the mixture for 10 minutes, then let it cool. 3. Pour the liquid into a clear container to create your indicator. 4. Test it with 3 different substances: lemon juice, baking soda solution, and soap. 5. Observe the color change and write down the results for each test. 6. Discuss how each substance reacted with your indicator!