Source Institutions
Source Institutions
Add to list Go to activity
Activity link broken? See if it's at the internet archive

In this activity, learners explore acids and bases by preparing six solutions that combine vinegar and ammonia, ranging from acid (all vinegar) to base (all ammonia). They add an indicator to each solution and compare the resulting colors to those on a pH scale chart. Learners then add drops of ammonia and vinegar to water and indicator, experimenting with the number of drops it takes to change the color of the water. This activity is currently used in the Chemical Reactions Unit in OMSI's Chemistry Lab. Cost estimates are per 100 learners.
- 10 to 30 minutes
- Under 5 minutes
- $5 - $10 per group of students
- Ages 8 - adult
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per group of students)
- microplate - one row of six wells
- 125-mL erlenmeyer flask
- 32oz household ammonia
- 32oz vinegar
- (2) 150-mL dropper bottles
- 4oz universal indicator
- 30-mL dropper bottle
Subjects
-
Physical Sciences
-
Chemistry
- Chemical Reactions
- Acids and Bases
- Solutions
-
Chemistry
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
-
The Scientific Process
Audience
To use this activity, learners need to:
- see
- see color
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, Oregon Museum of Science and Industry, 1997
Funding Source:
- National Science Foundation, 9355628