For this lesson, each group will need a Universal Indicator pH Color Chart. Print enough pages of these charts ... perfect for reinforcing key chemistry concepts and scientific investigation skills.

Discover how red cabbage can act as a natural pH indicator, revealing whether substances are acids or bases through beautiful color changes. pH is a measure that tells us how acidic or basic a ...

The pH scale is used to classify the level of acidity a basicity of a substance. The scale is numbered from zero through to 14, and on modern scales each number has a corresponding color on a ...