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With the Opening Day Chemical Demonstration Kit, welcome your students to the “wonderful world of chemistry.” Five colorful and engaging demonstrations have been selected to help students develop observational and critical-thinking skills.

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Welcome your students to the “wonderful world of chemistry!” Five colorful and engaging demonstrations have been selected to help students develop observational and critical-thinking skills—and to get them excited about the amazing science that lies ahead.
• “Think Tube” will have students scratching their heads in wonder. What’s inside the tube?
• Add chunks of dry ice to various colored solutions, then watch as the solutions immediately begin to “boil” and change color. What’s going on here?
• Dip a red sponge into a red solution—the sponge turns blue! Dip the blue sponge into a blue solution and the sponge turns red!
• Passing electric current through a green solution produces gas bubbles at each pencil lead electrode and a rainbow of color changes.
• Fascinating chemical reaction “rotates” back and forth between yellow and blue.

Concepts: Hypothesis, models, pH indicators, acids and bases, electrolysis, decomposition reactions, oscillating reactions, reaction mechanisms.
Time Required: One full class period
Note: Common laboratory glassware and equipment are required but not provided.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Analyzing and interpreting data
Constructing explanations and designing solutions
Planning and carrying out investigations

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Patterns
Cause and effect

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.
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.
MS-PS2-5. Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact