"PARKWAY PLASTICS, INC."
Clear Cylindrical Lenses for Ray Optics
Ideal selection for use with a ray box.
Expand 3 item
Boomwhackers Tuned Percussion Tubes
Boomwackers are brighly colored plastic tubes tuned by length to musical notes.
Expand 2 item
Equal Volume Density Cube Sets
High quality density cubes for the classroom.
Expand 2 item
Diffraction Grating Glasses
These glasses make the study of light and color fun and easy.
Expand 1 item
Eisco® Economy Wimshurst Machine
The durable Wilmshurst Machine is made for years of use.
Expand 3 item
Digital Stroboscope with Flash Rate Display
An economical digital stroboscope.
Expand 1 item
Plastic Spring Wave
Observe phase reversal at the fixed end of wave pulses with this spring used to test waves in fundamental and multiple vibrations.
Expand 1 item
Eisco® Large Plastic Dynamics Cart
With the Large Plastic Dynamics Cart, students can explore the changes in motion that occur in a dynamics cart when different amounts of net force are applied.
Expand 1 item
Metal Madgeburg Hemispheres
Hands on demomstration showing the power of a vacuum.
Expand 1 item
Aluminum Coated Pith-Like Balls
A thin aluminum coating produces great sensitivity to electrostatic charges. Styrofoam pith-like balls measure 8 mm in diameter and each has a silk suspension cord.
Expand 1 item
Student Double-Wall Calorimeter
The Student Double-Wall Calorimeter is an inexpensive necessity for your experiments.

