pH Scale — Acids and Bases (simple) — free printable clipart

About this illustration

A horizontal pH scale from 0 to 14 with a rainbow colour gradient (red at 0 through to purple at 14). The scale is divided into Acidic (left) and Basic/Alkaline (right) regions with Neutral marked at pH 7. Common substances are illustrated below the scale with their approximate pH values: battery acid (pH 0), lemon juice (pH 2), vinegar (pH 3), tomato (pH 4), coffee (pH 5), water (pH 7), blood (pH 7.4), baking soda (pH 9), ammonia (pH 11), and bleach (pH 13).

How to use

1. 1Right-click the image and choose “Save image as”, or use the download button.
2. 2Use it in your classroom worksheets, slides or printables — free under CC BY-NC 4.0.
3. 3Attribute as “Image by Kuraplan” or link back to kuraplan.com. Not for commercial resale.