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Investigating Polarized Light with a Student-Built LCD—Wet/Dry Inquiry Lab for One Period

By: The Flinn Staff

Item #: AP9665

Price: $125.00

In Stock.

In this time-saving lab optimized for completion in one period, students construct their own liquid crystal pixel and investigate its interaction with polarized light. A prelab homework assignment introduces the ideas and concepts needed to succeed on lab day.

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Product Details

Bid Idea 2

Liquid crystal displays are a common piece of technology. They interact with polarized light to either generate a dark pixel or a light pixel. It is the structure of the molecules in the liquid crystal display that gives rise to these properties. In this time-saving lab, students construct their own liquid crystal pixel and investigate its interaction with polarized light. A prelab homework assignment introduces the ideas and concepts needed to succeed on lab day.

Complete for 24 students working in groups of three.

Specifications

Materials Included in Kit: 
Copper foil with conductive adhesive, bagged and labeled, 12", 2
4-Cyano-4'-pentylbiphenyl, 0.5 mL
Polyvinyl alcohol solution, 4%, 500 mL
Electrical conducting glass, 16
Krazy glue®, 2
Linear polarizer, 6" x 5½", 2
Soft-Tek© cleaning cloth, 2


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Using mathematics and computational thinking
Constructing explanations and designing solutions
Planning and carrying out investigations

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions
HS-PS3.A: Definitions of Energy
HS-PS3.D: Energy in Chemical Processes
HS-PS4.A: Wave Properties
HS-ETS1.C: Optimizing the Design Solution

Crosscutting Concepts

Patterns
Structure and function
Cause and effect
Energy and matter

Performance Expectations

HS-PS1-4: Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.
HS-PS1-6: Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.
HS-PS2-6: Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.
HS-PS3-3: Design, build, and refine a device that works within given constraints to convert one form of energy into another form of energy.
HS-PS3-4: Plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system (second law of thermodynamics).
HS-PS4-1: Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.