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In this activity, learners mix milk, vinegar, baking soda, and water to create sticky glue. Use this activity to explain how engineers develop and evaluate new materials and products. Learners compare the stickiness of their glue against white glue, a glue stick, and peanut butter using the "stick-o-meter" test. [Activity is publicly available through a web crawler capture on Archive.org.]
- Under 5 minutes
- 45 to 60 minutes
- $1 - $5 per student
- Ages 6 - 11
- Activity, Experiment/Lab Activity
- English, Spanish
Quick Guide
Materials List (per student)
- 1/2 cup skim milk
- 2 tablespoons vinegar
- 2 large paper cups
- 5 paper towels
- rubber band
- plastic spoon
- 1 teaspoon baking soda
- 3 tablespoons water
- test strip (1 in. x 8 in. piece of paper)
- paper plate
- paper cup
- hold punch
- string
- large paperclip
- pennies
- (optional) white glue
- (optional) glue stick
- (optional) peanut butter
Subjects
-
Engineering and Technology
-
Engineering
- Chemical Engineering
- Metallurgy and Materials Engineering
-
Engineering
-
Physical Sciences
-
Chemistry
- Chemical Reactions
- Acids and Bases
- Solutions
-
States of Matter
- Solids
- Liquids
-
Structure and Properties of Matter
- Atomic Structure
- Volume and Density
-
Chemistry
-
The Nature of Science
-
The Scientific Process
- Asking Questions
- Conducting Investigations
- Gathering Data
- Formulating Explanations
- Communicating Results
-
The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Foreign language versions of this resource:
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, WGBH Educational Foundation, 2003
Funding Sources:
- National Science Foundation, 0229796
- Corporation for Public Broadcasting
- PBS