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Product 40103

By: The Flinn Staff

Watch as students build a bridge between chemistry concepts and practical consumer science. After a thorough homework set, which introduces the knowledge needed for lab, students are challenged to determine which candy coated chocolates contain the FD&C food dye, tartrazine, using paper chromatography.

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Watch as students learn important Big Idea 2 concepts covered on the AP® Chemistry exam—intermolecular forces, interpretation of a separation experiment and connect relationships between the structural features of molecules—with this Candy Chromatography advanced inquiry lab. After a thorough homework set, which introduces the knowledge needed for the wet lab, students are challenged with determining which candy-coated chocolates contain the FD&C food dye tartrazine. Students analyze the candies and a control by paper chromatography to arrive to a conclusion. Are some of the candies mixtures of FD&C dyes? How do the results compare to the tartrazine control? Watch students build a bridge between chemistry concepts and consumer science.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Planning and carrying out investigations
Analyzing and interpreting data
Asking questions and defining problems
Obtaining, evaluation, and communicating information
Constructing explanations and designing solutions
Using mathematics and computational thinking

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS2.A: Forces and Motion
HS-PS2.B: Types of Interactions
HS-ETS1.A: Defining and Delimiting Engineering Problems

Crosscutting Concepts

Cause and effect
Patterns
Energy and matter

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.
HS-PS1-3: Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
HS-PS2-6: Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.