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Build a Flask Form Electroscope—Demonstration Kit

By The Flinn Staff

Item #: AP6328

Price: $25.50

In Stock.

With the Build a Flask Form Electroscope Demonstration Kit for physical science and physics, perform a variety of simple electrostatic demonstrations that reveal how the parts of an electroscope work.

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Product Details

You’ll be shocked by how well this simple, do-it-yourself electroscope works! Large, aluminum-covered foam ball stores static-electric charge better than most commercial electroscopes. A variety of simple electrostatic demonstrations can be performed showing students how the parts of the electroscope work. Use the PVC rod, test tube and wool fabric provided to produce negatively and positively charged rods to charge the electroscope. Next, use the charged electroscope to test the polarity of different objects’ static-electric charge. Includes enough materials to build one electroscope. Teacher Demonstration Instructions and background information are provided.

Concepts: Static electricity, electron affinity, charge distribution, induction, conduction.
Time Required: 20 minutes
Note: Needle-nose pliers with wire cutters are required and available separately.


Materials Included in Kit: 
Aluminum foil, 12" x 12" sheet
Copper wire, 16-gauge, 1 foot
Cork stopper
Culture tube with out lip, 16 x 150 mm
Erlenmeyer flask, 250 mL
Friction pad, wool, 5" x 5"
PVC ½" diameter, 6" long
Stopper, black, rubber, 1-hole size #6
Styrofoam ball, white, 4"

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations

Disciplinary Core Ideas

HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Energy and matter
Cause and effect

Performance Expectations

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.