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In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch. Learners use their data from the previous activity (see related resource) to identify these three powders as possible ingredients. Then, they test combinations of these powders to determine the active ingredients in baking powder.
- 10 to 30 minutes
- 30 to 45 minutes
- 1 cent - $1 per group of students
- Ages 6 - 14
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per group of students)
- Baking soda
- Cream of tartar
- Cornstarch
- Water
- 3 Popsicle sticks
- 1 Dropper
- 3 Small cups
- Student Activity Sheet
Subjects
-
Mathematics
-
Data Analysis and Probability
- Data Analysis
- Data Collection
-
Data Analysis and Probability
-
Physical Sciences
-
Chemistry
- Chemical Reactions
- Acids and Bases
-
Chemistry
-
The Nature of Science
-
The Scientific Process
- Asking Questions
- Conducting Investigations
- Gathering Data
- Formulating Explanations
-
The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- see color
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
- Related Activity: Using Chemical Change to Identify an Unknown
- Student Reading: What's Going On?
- Extension: Think About It
This resource is part of:
Access Rights:
- Free access
By:
- Kessler, James H. ; Galvan, Patricia M.
Rights:
- All rights reserved, American Chemical Society, 2007