This educational film explores acid-base indicators and their color changes in response to acidity. It demonstrates how substances like tea, red cabbage, and litmus paper react when acids are added, ...

Q-What is the acid/base reaction on hydrangeas? I think it is like litmus paper-pink for acid, blue for base. A-Hydrangeas in the macrophylla, or ”large-leaved,” group, which include the popular ...