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Spring Blooms—Chemical Demonstration Kit

By: The Flinn Staff

Spring Blooms Chemical Demonstration Kit
blooms, flowers, paper flowers
acid-base, acid, base, pH
Spring Blooms Chemical Demonstration Kit
blooms, flowers, paper flowers
acid-base, acid, base, pH

Item #: AP6650

Price: $29.90

In Stock.

The Spring Blooms Chemical Demonstration Kit is perfect for spring. Welcome the season into your classroom with this two-part acid–base and chemical equilibrium demonstration and teach your students about LeChâtelier’s principle.

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

Product Details

Spring has arrived—time for April showers to bring May flowers. Welcome spring into your classroom with this two-part acid–base and chemical equilibrium demonstration. In part one, one set of paper flowers are soaked in colorless indicator solutions. Spraying the dried blooms with ammonia gives a beautiful bouquet of purple, red and blue flowers. In part two, a second set of flowers, saturated with cobalt chloride, are blue when dry, but quickly turns pink when sprayed with water. A colorful introduction to acid–base indicators and LeChâtelier’s principle. Teacher Demonstration Notes included.

Concepts: Acid–base indicators, LeChâtelier’s principle.
Time Required: 10 minutes
Note: Spray bottles are required and available separately.

Specifications

Materials Included in Kit: 
Ammonia, household, 175 mL
Cobalt chloride solution, 10%, 100 mL
Phenolphthalein solution, 1%, 100 mL
Thymolphthalein solution, 75 mL
Universal indicator solution, 100 mL
Chenille wires, green, 12", 40
Filter paper, creped, 20 cm, 10
Tissue paper, green, 20" x 30"


Correlation to Next Generation Science Standards (NGSS)†

Science & Engineering Practices

Developing and using models
Analyzing and interpreting data

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Cause and effect
Patterns
Structure and function

Performance Expectations

MS-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
MS-PS1-5: Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
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.
HS-PS1-6: Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.