22 Gauge insulated copper wire. 100 ft. Color: Black
22 Gauge insulated copper wire. 100 ft. Color: Black
22 Gauge insulated copper wire. 100 ft. Color: White
22 Gauge insulated copper wire. 100 ft. Color: White
Learn about static electricity and the function of a dielectric with this device. Two aluminum jars-one with an attached aluminum electrode- and one plastic jar are used to collect the charge. Assembled device is 6" tall and 3 1/4" in diameter.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
For use with 14737
For use with 14737
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
Two plates 250mm in diameter are supported in two rigid uprights and driven by hand in opposite directions. They are heavy, high-resistance plastic with sectors of aluminum sheets. Leyden jars (condensers) made of borosilicate glass and aluminum foil store electricity until discharged by the dischargers. The whole unit is mounted on a wooden base.
The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear plastic housing allows students to watch the coils, terminals, and gears. Students get a hands-on demonstration of the Second Law of Thermodynamics. Includes activity guide.
The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear plastic housing allows students to watch the coils, terminals, and gears. Students get a hands-on demonstration of the Second Law of Thermodynamics. Includes activity guide.
Pith balls react sensitively to static charges like those from a charged friction rod or a Van de Graaff generator.
Turn your students into human gyroscopes with our wide, stable rotating platform. Now you can do the "skater's spin" without skates, a rink or ice! Our 16" (40cm) wide bright blue wooden disc has a nonslip surface and safely holds over 220 pounds (100 kg). Intended for hands-on (or feet-on) use, the unit has very low friction when supporting a weight of 100 pounds. Instructions describe experiments in rolling friction and gyroscopic precession with sample questions. Features include non-skid decals on surface for safety, and bright blue 16" diameter wood discs.
Turn your students into human gyroscopes with our wide, stable rotating platform. Now you can do the "skater's spin" without skates, a rink or ice! Our 16" (40cm) wide bright blue wooden disc has a nonslip surface and safely holds over 220 pounds (100 kg). Intended for hands-on (or feet-on) use, the unit has very low friction when supporting a weight of 100 pounds. Instructions describe experiments in rolling friction and gyroscopic precession with sample questions. Features include non-skid decals on surface for safety, and bright blue 16" diameter wood discs.
Helps students understand how and why gyroscopes are used for many guidance systems. This is a well-balanced, high quality gyroscope with adjustable bearings. The accessories include plastic gimbals, rocker and pivoting housing. This unit measures 100m x 190mm. Instructions provided.
General purpose use and also for use with inclined plane. Metal pan with cords for suspension.
Pulley is high-quality impact-resistant, chip-proof injection molded, balanced wheel. Smooth, clean V-groove. Wheel diameter 2", 360 degrees swivel hooks-top and bottom. All steel blocks.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
Sprocket Gears! Spur Gears! Rack & Pinion! And More! The K'NEX® Education Gears set is designed to introduce students to the scientific concepts associated with gears. Students are provided with the opportunity to acquire skills using a hands-on, inquiry-based approach to information and concepts as they build, investigate, discuss, and evaluate scientific principles in action. The Teacher's Guide provides the information and resources needed to build students' understanding of scientific concepts and channel their inquiries into active and meaningful learning experiences. Extension activities to explore the concepts more deeply are also included. Set includes 198 K'NEX® parts – enough to build 7 fully-functioning replicas of real-world machines, one at a time. Supports 2 – 3 students working as a team. Grades 3 -5. Building instructions and comprehensive teacher's guide aligned to Science, Technology, Engineering and Math Standards included. Packaged in a strong storage tray with snap-on lid. STEM Education focuses on science, technology, engineering and mathematics concepts taught through problem-solving, discovery, exploratory learning and critical thinking. STEM Education requires students to be active participants in the learning. K'NEX® models offer hands-on learning opportunities that encourage scientific inquiry, investigation and experimentation. Our inquiry-based lessons challenge students as they build, investigate, problem solve, discuss, and evaluate scientific and design principles in action. Aligned to Science, Technology, Engineering, and Math standards. Also see K'NEX® Education's Intro to Simple Machines: Levers and Pulleys and Intro to Simple Machines: Wheels & Axles and Inclined Planes, and Simple Machines Deluxe for grades 3-5 and Exploring Machines for grades 5 - 9. Includes Teacher Guide on CD!
Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.
Securely hold a mirror in a vertical position on any flat surface. Packages of 6.
Securely hold a mirror in a vertical position on any flat surface. Packages of 6.
Made from plate glass about 1/16" thick. Highly Silvered back.
This 4in x 4in mirror is made from plate glass about 1/16in thick with a highly silvered back.
Explore the world of light, color and illusions, learn how light warms our world with this Optics Kit. Each kit comes with: 1 Activity book; 1 Double convex lens, 38mm diameter, glass; 1 Double concave lens, 38mm diameter, glass; 1 Plain lens, 38 mm diameter, glass; 1 Clear glass screen; 1 Mirror, glass; 1 Plastic screen (white); 4 Cellophane square (4 colors); 3 Lens/mirror supports; 1 Prism, equilateral, 25mm x 50mm, acrylic; 1 Beaker, graduated, plastic; 1 Flashlight( 2 batteries included); 1 Candle
Explore the world of light, color and illusions, learn how light warms our world with this Optics Kit. Each kit comes with: 1 Activity book; 1 Double convex lens, 38mm diameter, glass; 1 Double concave lens, 38mm diameter, glass; 1 Plain lens, 38 mm diameter, glass; 1 Clear glass screen; 1 Mirror, glass; 1 Plastic screen (white); 4 Cellophane square (4 colors); 3 Lens/mirror supports; 1 Prism, equilateral, 25mm x 50mm, acrylic; 1 Beaker, graduated, plastic; 1 Flashlight( 2 batteries included); 1 Candle
Index of refraction plate, made from acrylic. Polished surfaces.
This acrylic 115 x 65 x 20mm rectangular block is designed for use as an index of refraction plate, and has a polished surface.
3 inch strong zink-plated steel horseshoe magnet with North and South poles marked. Supplied with keeper.