acid-base scale
nounUK /ˈæsɪd beɪs skeɪl/
US /ˈæsɪd beɪs skeɪl/
A tool that tells you how sour or soapy a liquid is.
The scientist used the acid-base scale to see if the lemon juice was sour.
RELATED WORDS
OTHER MEANINGS
2. A numbered range from 0 to 14 that shows how acidic or basic a substance is.
On the acid-base scale, pure water sits right in the middle at 7.
3. A way to compare liquids by how many hydrogen ions they have.
Vinegar and baking soda are far apart on the acid-base scale.
4. A chart used in chemistry class to test everyday liquids.
We placed milk, soap, and orange juice on the acid-base scale.