The Liquid Rainbow
Contributed By
- Original Source:Sciencenter
Conditions of Use:None Specified
Description
Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube. Five different solutions—3 mixtures of ethyl alcohol, food color and water; red colored water; and pure ethyl alcohol—are used in various combinations. Learners carefully add the solutions to test tubes and observe their relative densities to find the correct order for making a rainbow. Young learner will require adult supervision because of flammable and irritating ingredients.
Learning Registry Activity
Bookmarks
Topics and Grades
Grade: TK/K to 9
Topics: Measurement, Tools, and Data Analysis, Chemistry, Light, Sound & Other Waves, Properties of Matter, Earth's Resources, Area & Volume, Earth & Space Science, States of Matter (solids, liquids, gases), Physics
Resource Pedagogy
Resource Type/Classification:
- Teacher Materials
Tool for: Students