https://howtoolkt.pages.dev/tags/experiment/ Recent content in experiment on https://howtoolkt.pages.dev Hugo -- gohugo.io en-us Tue, 24 Jun 2025 03:44:45 +0700 https://howtoolkt.pages.dev/how-to-make-an-indicator-liquid/ Tue, 24 Jun 2025 03:44:45 +0700 https://howtoolkt.pages.dev/how-to-make-an-indicator-liquid/ Have you ever wondered how scientists can test the pH of a liquid? They use something called an indicator liquid. Indicator liquids change color depending on the pH of the liquid they’re added to. This makes them a valuable tool for chemists and other scientists. Indicator liquids are typically made with a compound that has a different color at different pH levels. They can be purchased in powder form or as a liquid solution.