Watch a simple but fascinating chemistry experiment using phenolphthalein and dry ice to demonstrate pH changes in real time. See how carbon dioxide forms acid in water and causes a dramatic color ...

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, ...

Researchers may have figured out how a crucial ingredient that cells need to produce energy could form in deep space. Calculations and lab experiments suggest that glyceric acid can arise from ...