pH test strip experiment



Difficulty: ★★★☆☆
Do you know that citrus fruits that are generally considered as acidic, are actually alkaline-producing foods in your body? In this chemistry challenge, your little scientist will perform pH measurements with 6 testing specimens to identify acidity and alkalinity. The kids will also experience the basics of simple chemical qualitative analysis.

CAUTION: Do not eat any testing materials.


Kit contains:

  • pH test strips
  • Dropper
  • Art brush
  • pH colour chart
  • pH chart of common foods
  • Worksheet
  • A small bowl of water (Please prepare)
  • 4 large test tubes and 2 small test tubes (with lids) (Add-on)
  • Test tube stand, 6 holes (Add-on)


materials for ph value testing: specimens

Plus 6 testing specimens -
  • #1: approx. pH value 3.5
  • #2: approx. pH value 9
  • #3: approx. pH value 7
  • #4: approx. pH value 8.5
  • #5: approx. pH value > 9.5
  • #6: approx. pH value 5.5



(Order this project / Subscribe to Activity Box to get this step-by-step guide! Free sample guide available HERE)


What's happening?

pH stands for ‘potential of hydrogen’. pH value is a measure of the acidity or alkalinity of a substance. The pH value commonly ranges from the scale of 0 to 14, where a pH of 0 means strongly acidic, pH 14 indicates very alkaline, and pH 7 is neutral.


Level up the game!

Test foods and drinks available at home, find out their acidity or alkalinity. Attached is a simplified pH chart of common foods created by our science team for you as teaching reference, have fun!


Acknowledgements & disclaimer: These guides are developed by Moinàrchy. All activities are intended for use with children under adult supervision with due diligence.


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