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Product 12893

By: The Flinn Staff

In the It’s in their Nature Chemistry Laboratory Kit, students learn to classify compounds and begin understanding attractive forces that exist between molecules by finding the solubility patterns of ionic, polar and nonpolar compounds.

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“Oil and water do not mix.” This old saying is often used to explain why relationships between opposites are difficult or almost impossible. In this experiment, students trace this saying back to its source—the nature of oil and water, solutes and solvents and the interactions between them. By investigating the solubility patterns of ionic, polar and nonpolar compounds in a variety of solvents, students learn to classify compounds and begin to understand the types of attractive forces that exist between molecules. Includes reproducible student handouts, detailed background information and Teacher Notes.

Complete for 30 students working in pairs. Perform this experiment in a fume hood or well-ventilated lab.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

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

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
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Systems and system models
Energy and matter
Structure and function

Performance Expectations

MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures.
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-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
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.