Indicators and their Ranges

indicator</>

Solution Color

Base

Acid
Red cabbage water Purple Green Red/Pink
Blackberry juice Purple Blue Red
Red Onion Pink Green Pink
Tumeric powder xxx xxx Does not change
P.T.S. Yellow Pink Pink


Acids are sour substances that turn pink or red when mixed with cabbage water.

Alkalis (bases) have a bitter taste and they feel slippery or soapy. When bases are mixed with cabbage water they turn blue or green.


Color Me

pH Factor Home Teacher's Guide Excite Explore Explain Museum Menu
Expand Extend Exchange Examine  

 

©2001 Miami Museum of Science
Questions or comments about the site? Write to the Webmaster.

You can buy this resource on CD-ROM for use on computers without internet access.
Visit our online store for more information!