Lesson Plan
Curated OER

RHS Campaign for School Indicator

For Teachers 4th - 9th
Students study Ph and how acids and bases can affect it.  In this indicators lesson students divide into groups and complete a lab activity to investigate what happens when they add indicators. 
Activity
American Chemical Society

Inquiry in Action: Color Changes With Acids and Bases

For Teachers 9th - 10th
In this lab activity, students will learn how red cabbage can be used as an indicator of an acid or base by looking at its color changes.
Activity
American Chemical Society

Inquiry in Action: Neutralizing Acids and Bases

For Teachers 9th - 10th
A lab activity where students will neutralize and acidic solution with a base and a basic solution with an acid by using their knowledge of a red cabbage indicator. This site includes teacher and student instruction for the lab activity...
Activity
TOPS Learning Systems

Tops Learning Systems: Top Science: Cabbage Chemistry [Pdf]

For Students 9th - 10th
Experiment using water from boiling red cabbage to determine if a material is an acid, a base, or neutral.
Activity
Other

Siemens Science Day: Earth Science: By All Indications

For Teachers 9th - 10th
A hands-on science experiment where students test acidity levels by using red cabbage extract and learn the acid levels of known and unknown liquids.