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Liquid Crystals—How Do They Do That? Chemical Demonstration Kit

By: The Flinn Staff

Item #: AP7195 

Price: $42.99

In Stock.

The Liquid Crystals Nanotechnology Chemistry Demonstration Kit is a great survey into nanotechnology. Liquid crystals have properties in-between those of solids and liquids. Molecule order changes with temperature and creates color changes.

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Product Details

Combine two clear liquids and heat them, then watch as the mixture produces vivid color changes from red to green to blue as it cools. From skin mapping to circuit board testing to mood rings, liquid crystals have amazing modern applications. Liquid crystals have properties that are in-between those of solids and liquids—molecules move independently as in a liquid, but they also tend to orient or align themselves, like a crystalline solid. The alignment of the molecules changes with temperature and produces fascinating color changes. A simple introduction to the world of nanotechnology! Teacher Demonstration Notes, reproducible student worksheets, and answer sheets are included.Enough materials are included to perform the demonstration seven times. Concepts: Liquid crystals, nanotechnology, phases of matter, light reflection and transmission. Time Required: 20 minutes Chemicals Provided: Cholesteryl oleyl carbonate and cholesteryl pelargonate (liquid crystals).

Specifications

Materials Included in Kit: 
Cholesteryl oleyl carbonate, 1. 2 g
Cholesteryl pelargonate, 1.1 g
Aquarium thermometer, large
Contact paper, clear, 9" x 9"
Reaction vial, 1 dram, 2


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking

Disciplinary Core Ideas

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

Crosscutting Concepts

Patterns
Cause and effect
Systems and system models
Energy and matter

Performance Expectations

MS-ESS1-4: Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s 4:6-billion-year-old history.
HS-PS1-8: Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radioactive decay.