Curated OER
Acid and Base Testing 2
Students design and conduct an experiment on unknown solutions after studying descriptions of indicators and the way in which they identify acids and bases. Students must gather, organize, and analyze data as well as make inferences...
Curated OER
Acidity of Soda Pop
Pupils conduct an experiment to determine the acidity of three different brands of soda by adding a known volume of base until a pink color appears in the reaction vessel. They test fresh and flat soda, observe any differences, and draw...
Curated OER
Every Breath You Take
Students study acids and bases and the uses of indicators. They interpret the actions of an indicator to conclude that bromothymol blue turns yellow in the presence of a weak acid.
Curated OER
Invisible Ink - Demonstration
Students observe a demonstration that shows that the indicator, phenolphthalein, is a chemical that displays different colors depending on either the acidity or the basicity of the environment. They use the substance to reveal secret...
Curated OER
Chemical Volcano
Students observe a demonstration performed by the teacher. They examine of a series of acid/base reactions and discover how various indicators work.
Curated OER
Seltzer Breath
High schoolers investigate "indicator" (Bromothymol Blue or BTB) to test for the presence of certain chemicals in liquids and gases. They compare distilled water and seltzer water for presence of carbon dioxide.
Other
Westminster School: Mixed Indicator Lab
A unique upper level lab showing how to take advantage of the different transition points of two indicators to determine the concentrations of two unknowns at once.
CK-12 Foundation
Ck 12: Acid Base Neutralization
[Free Registration/Login may be required to access all resource tools.] Students will understand and differentiate among acid-base reactions, precipitation reactions, and oxidation-reduction reactions.
Crescent Public Schools
The Internet Science Room: P H and the P H Scale
A chemistry tutorial which explains pH and the pH scale. There are also opportunities for students to do some calculation practice.
Simon Fraser University
Chem1 Virtual Textbook: The P H Scale
Acting as an overview from the General Chemistry Virtual Textbook, this site explores the pH scale and its characteristics including a chart mapping the various levels of the scale.
![Cosi Columbus: Cabbage Patch Chemistry [Pdf] Activity](http://content.lessonplanet.com/resources/thumbnails/410122/large/bwluav9tywdpy2symdiwmduymc0ynde4oc0xzxmzchv6lmpwzw.jpg?1589985500 "Cosi Columbus: Cabbage Patch Chemistry [Pdf] Activity")
Center of Science and Industry
Cosi Columbus: Cabbage Patch Chemistry [Pdf]
Make your own indicator by using red cabbage leaves and common household items. Includes full list of materials, procedures, and scientific explanation of how to determine if a substance is acidic, basic, or neutral based on the colors...
Hunkins Experiments
Hunkin's Experiments: Color
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one...