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 LeChatelier's principle.
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 LeChtelier's principle. Teacher Demonstration Notes included.Enough materials are included to perform this demonstration seven times.
Concepts: Acid-base indicators, LeChtelier's principle.
Time Required: 10 minutes
Materials Provided: Ammonia solution, phenolphthalein indicator solution, thymolphthalein indicator solution, universal indicator solution, cobalt chloride solution, filter paper, pipe cleaners, tissue paper.
Note: Spray bottles are required and available separately.