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Build Your Own Conductivity Tester—Student Laboratory Kit

By: David A. Katz, Retired, Wilmington, DE

Item #: AP7265 

Price: $77.27

In Stock.

In the Build Your Own Conductivity Tester Kit, students learn about and build their own audio conductivity testers to create sounds as they explore changes in volume and pitch.

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Product Details

Students safely discover the essential components of an electric circuit as they build their very own audio conductivity testers. Once the testers are assembled, students use the inquiry method to determine the conductivity of common solids and liquids. The audible sound emitted when the circuit is complete gives immediate and unmistakable results. Students also explore relative resistance as the volume and pitch of the buzzer varies with conductivity. At the end of the lab, testers may be disassembled, ready to be built again by the next class. Includes complete instructions with reproducible student handouts, valuable Teacher Notes with suggestions for common conductors and insulators for testing.

Complete for eight student groups. A 9 V battery is required for each tester and available separately.


Materials Included in Kit: 
Battery clips with wire leads, 8
Buzzer, piezo, 12 V DC, 8
Copper wire, 16-gauge, 2 feet
Fahnestock clip, 1", 24

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Planning and carrying out investigations
Analyzing and interpreting data
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS2.B: Types of Interactions
HS-PS2.B: Types of Interactions
HS-ETS1.A: Defining and Delimiting Engineering Problems

Crosscutting Concepts

Cause and effect
Energy and matter
Structure and function

Performance Expectations

MS-PS4-2: Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
MS-ESS3-2: Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects.
HS-PS4-1: Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
HS-PS4-5: Communicate technical information about how some technological devices use the principles of wave behavior and wave interactions with matter to transmit and capture information and energy.