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The ROY G BIV Clock Reaction—Chemical Demonstration Kit

By: Steve Spangler, Regis University, Denver, CO

Item #: AP6280

Price: $44.20

In Stock.

The ROY G BIV Clock Reaction Kinetics Chemistry Demonstration Kit is a wonderful introduction to acid–base buffers. The visible spectrum has been displayed many ways, but never quite as spectacularly as this.

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This item can only be shipped to schools, museums and science centers

Product Details

The visible spectrum has been displayed many ways, but never quite as spectacularly as this! Take seven different dry chemical mixtures, and add each to a separate beaker. Pour a clear liquid into each beaker. In less than a minute, the large pH change at the end of this clock reaction causes a blooming of the seven rainbow colors. A wonderful introduction to acid–base buffers. Teacher Demonstration Notes included.

Concepts: Clock reactions, pH indicators, buffers.
Time Required: 15 minutes
Chemicals Provided: Formaldehyde solution, isopropanol solution and seven dry indicator mixtures.

Specifications

Materials Included in Kit: 
Formaldehyde, 37%, 35 mL, 2
Isopropyl alcohol solution, 28%, 500 mL, 2
Dry mixture #1, red color, 10 g
Dry mixture #2, orange color, 10 g
Dry mixture #3, yellow color, 10 g
Dry mixture #4, green color, 10 g
Dry mixture #5, blue color, 10 g
Dry mixture #6, indigo color, 10 g
Dry mixture #7, pink color, 10 g


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS1.B: Chemical Reactions
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Systems and system models
Stability and change

Performance Expectations

HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.