The NJ1710 is a raised relief map of Johnson City.
Each USGS topographic map covers 2° longitude..
The NJ179 is a raised relief map of the USGS Roanoke section.
Each USGS topographic map covers 2..
The NK1810 is a raised relief map of the USGS Section of Harrisburg.
Each USGS topographic map c..
The NJ176 is a raised relief map of the USGS Each USGS topographic map covers 2° longitude and 1° la..
Thorbjorn Frosty Desserts set, in a net bag with ice cream and pastries, which are combinable in a l..
This element with a 4.68" wide by 28.08" long belt linking one top to another (Top not included). A ..
Tuning Fork - C-512..
3" x 3" Clear Plate Glass - 12 pack - edges not ground...
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Build 3D glasses and explore how they facilitate the illusion of depth. Each of the colored lenses f..
Build a device that will allow you to explore Bernoulli's Principle. What will happen to the two bal..
Discover the secret to the wheel's motion with the Koontz™ Boomerang Wheel kit! Did you know that t..
The catapult is a device with a lot of power. Build one and see for yourself how ancient armies used..
Discover how the power of magnetism causes this pendulum to undergo chaotic motion and keep you gues..
Discover the secret to the clock's hand movements with a Koontz™ Clock kit. Did you know in a mecha..
Discover how to crack the code of an ancient puzzle with the Koontz™ Combination Lock kit. Did you ..
Build your own Dynamometer and measure the force exerted by the Earth's gravity on objects around yo..
The Hooey is a stick with a series of notches and a propeller. Rubbing it against another stick acro..
Do you really understand the shape of the towers you have just built? If so, can you get the string ..
Discover how the incredible jet force propels boats, planes, and missiles with the Koontz™ Jet Car ..
Discover a dazzling array of shapes and colors. Close one eye and surrender to the spectacular and c..
Build a Mangonel and experience the launch power of a medieval siege engine! Did you know that a Man..
Build a Mathematical Balance and explore mathematical and algebraic concepts in a tangible and fun w..
See centripetal force in action with the Koontz™ Merry Go Round kit! Anyone can enjoy a merry go ro..
Discover how to see without being seen with the Koontz™ Periscope kit! Did you know periscopes are ..
How is it that the Leaning Tower of Pisa does not topple over? Build a model and learn about center ..
Discover the inner workings of a combination lock used in safes with the Koontz™ Safe Kit! Did you ..
Can you make the colors of the button disappear? Simply roll the rope and release it by repeatedly p..
Have you ever wondered how we would tell time if we didn't have modern day clocks? Build a sundial a..
Koontz™ innovative products are designed to excite children and delight parents. Products are made f..
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Petri Dishes are essential lab materials used for growing and studying cultures. Flint Glass 60mm (R..
Superior quality glass lenses are useful for teaching a variety of optical principles. Double convex..
General purpose for classroom use, Single Throw, and Single Pole made of brass. Plastic Base 2"L x 1..
This Fossils Collection includes a set of 9 specimens enclosed in a handy, plastic storage container..
This strong tanks feature welded angle-iron frames, with a non-corrosive baked-on finish suitable fo..
Banana plugs are safe and easy for students to use. The connectors are soldered to the insulated lea..
Plastic styrene beads for plastic column kit. For grades 6 to 12. Measures 12mm diameter by 500ml si..
It is a good practice to replace your brushes regularly to prevent scratching your glass and plastic..