Acids, Bases, and pH Scale Activity
A colorful worksheet using litmus paper tests and a pH scale. Students classify common substances as acidic, basic, or neutral, and explain how indicators change color based on hydrogen ion concentration.
This asset is part of 7th Grade Science Worksheets That Actually Teach (Free PDF) published by SheetForge. Licensed under CC BY 4.0 — Free for personal use. Free to use with attribution.