Balls set of 14 drilled 1", 2 each of aluminum, brass, copper, iron, lead, zinc and wood.
Balls set of 14 drilled 1", 2 each of aluminum, brass, copper, iron, lead, zinc and wood.
Includes 12 brass samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
Includes 12 brass samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
An introductory kit providing students with materials to "breadboard" various electrical circuits such as: series and parallel circuits, investigating conductions and insulators, making electromagnets. Contents include: holders and batteries, bulb holders and bulbs, switch, carbon rod, iron rod, plastic insulator, coil of wire, "breadboard" circuit board, jiffy clip leads.
An introductory kit providing students with materials to "breadboard" various electrical circuits such as: series and parallel circuits, investigating conductions and insulators, making electromagnets. Contents include: holders and batteries, bulb holders and bulbs, switch, carbon rod, iron rod, plastic insulator, coil of wire, "breadboard" circuit board, jiffy clip leads.
This apparatus is used to demonstrate and teach the basic principle of an electric meter. Apparatus consists of a 3.75" (90mm) dia. air coil wound on an acrylic tube with an acrylic plate in the center to hold a compass. The coil has multiple tappings of 50, 100 and 200 turns, and also has a built-in potentiometer for varying the current, these features allow multiple readings. Operates on one "AA" battery (not included). Includes one compass. Base 7.34" (195mm) x 4.75" (120mm) x 0.5" (12mm). Total height 4.25" (110mm).
This kit allows students to explore the electrical properties of different combinations of electrode materials using safe, everyday chemicals such as soda, vinegar, and fruit juice as electrolytes. The set contains everything needed for the experiments except the electrolytes. Voltage, current, and polarization effects can be investigated. Contents of the set include a simple cell with electrode holders, electrodes of copper, aluminum, iron, and zinc, a mounted resistor for use as a current load, a multimeter, and a manual.
Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.
Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.
When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.
When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.
Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.
Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.
This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide and 23" long. Includes a 14 oz. roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.
This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide and 23" long. Includes a 14 oz. roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.
A compact and economical Color Mixing Apparatus. This updated version of the classic three color light projector uses three low voltage, high power LED's to project easily-seen red, green, and blue light onto a white screen. The projector mounting allows the beam angles to be adjusted to vary the overlap of the three colored images. The intensity of each LED can be adjusted separately by a potentiometer to give a convincing white light or various shades of mixed colors. Colored shadows can also be explored in a darkened room. The set includes a wall mount power supply and manual.
A compact and economical Color Mixing Apparatus. This updated version of the classic three color light projector uses three low voltage, high power LED's to project easily-seen red, green, and blue light onto a white screen. The projector mounting allows the beam angles to be adjusted to vary the overlap of the three colored images. The intensity of each LED can be adjusted separately by a potentiometer to give a convincing white light or various shades of mixed colors. Colored shadows can also be explored in a darkened room. The set includes a wall mount power supply and manual.
Weighs 2 lbs, lifts 200 lbs due to precision machining. the way magnets lift cars in junk yards! instructions, alligator clip leads and battery holder. Requires 1 "D" cell battery (not included).
Includes:
• Two coils mounted in plastic saddle blocks that stand vertically
• Five soft iron cores (round, square, double U, and half-round [2])
• Stiff card and supply of iron filings in reusable vial
• Four alligator clip leads
You will need 6 V battery or power supply exceeding 1 amp DC; galvanometer
Use the materials in this complete kit to experiment with magnetic induction in a coil; primary/secondary coils; magnetic lines of force and electromagnetism. Includes: two coils mounted in plastic saddle blocks that stand vertically; five soft iron cores (round, square, double U, and half-round [2]); stiff card and supply of iron filings in reusable vial; four alligator clip leads. You will need 6 V battery or power supply exceeding 1 amp DC; galvanometer.
The Intro Kit is ideal for introducing students to the concepts of changing force by levers and pulleys, and the notion of mechanical advantage. The manual describes experiments with three types of levers, single and double pulley systems, and shows the characteristics of each machine. Set includes: 1 lever with centimeter scale, 2 pulleys, 1 spring scale, 2 weight hangers, 1 slotted weight set, 1 base and support rod, 1 support rod with clamp, 2 hook collars, 1 pulley cord, 1 manual and disc.
The Intro Kit is ideal for introducing students to the concepts of changing force by levers and pulleys, and the notion of mechanical advantage. The manual describes experiments with three types of levers, single and double pulley systems, and shows the characteristics of each machine. Set includes: 1 lever with centimeter scale, 2 pulleys, 1 spring scale, 2 weight hangers, 1 slotted weight set, 1 base and support rod, 1 support rod with clamp, 2 hook collars, 1 pulley cord, 1 manual and disc.
Same as 16260, but does not include the Multimeters.
Same as 16260, but does not include the Multimeters.
For demonstrating longitudinal and transverse wave motion. Consists of a number of eccentric aluminum discs supporting a series of metal rods, joined to a handle. On revolving the handle, simulation of waves can be obtained on the rods running in a metal guide. Mounted on a nicely polished wooden case.
• Durable water resistant shell
• Class 3 jacket with zip-off sleeves converts to a Class 2 vest
• Black micro-fleece liner converts into a stand alone jacket
• Jacket/vest features a left radio pocket, two outside slash pockets with zippers
and an inside wallet pocket
• Hidden collar hood
• Adjustable cuffs
• Sizes Small
• ANSI/ISEA 107-2004 Class 2/3 Compliant
Stay visible, protected, and prepared for anything with this high-performance, multi-function safety jacket. Built with a rugged water-resistant outer shell, it delivers reliable protection against the elements while meeting ANSI/ISEA 107-2004 Class 2 and Class 3 standards for maximum on-the-job visibility. The innovative design features zip-off sleeves that quickly convert the jacket into a Class 2 vest, while the black micro-fleece liner can be worn separately as a standalone jacket for added versatility in changing conditions. Practical storage options including a left radio pocket, two zippered slash pockets, and an interior wallet pocket keep essentials secure and accessible. A concealed hood tucked into the collar and adjustable cuffs provide customizable comfort, making this adaptable safety essential ideal for demanding work environments. Available in Small only.
Capacity - 5000g Readability - 2g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.
Capacity - 5000g Readability - 2g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.
Small butane burner uses clean burning butane and features a trigger ignition eliminating the need for wicks, matches or a central gas line. Stable, tip-resistant design and easy grip handle make the burner safe and portable. The flame height is fully adjustable and can reach a maximum temperature of approximately 1300 degrees C. The burner has a two hour fuel capacity and is compatible with standard butane cartridges. Fuel sold separately. One tank full will burn 1-2 hours.
Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.
Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.
All components are rigidly mounted on a molded casing covered with a reinforced colored ABS plastic plate. Minimal vibration and well-balanced rotating arm give years of trouble-free operation. Max stirring capacity 1 liter. Minimum speed: 100rpm. Maximum speed: 800 to 100 rpm. 110/115V, 50/60 Hz power supply. 5.4"diameter x 2" height. Each stirrer comes with 1" long x 3" diameter Teflon coated magnetic stir bar and instruction manual.
All components are rigidly mounted on a molded casing covered with a reinforced colored ABS plastic plate. Minimal vibration and well-balanced rotating arm give years of trouble-free operation. Max stirring capacity 1 liter. Minimum speed: 100rpm. Maximum speed: 800 to 100 rpm. 110/115V, 50/60 Hz power supply. 5.4"diameter x 2" height. Each stirrer comes with 1" long x 3" diameter Teflon coated magnetic stir bar and instruction manual.
• A realistic set of the most important traffic signs
• Incorporate them into obstacle courses or activity stations
• Create mock drivers ed routes for scooter teams.
• Traffic Signs stand 36" high
• Large surface areas (up to 16" by 16")
• Constructed from a durable, lightweight corrugated styrene plastic
• Won't damage floors
• Set includes 6 slip-on poles (no assembly required)
• Dome base not included
Introducing a realistic set of the most important traffic signs kids will learn. Incorporate these signs into obstacle courses or activity stations. Create mock drivers ed routes for scooter teams. Multi-Dome Traffic Signs are not just for physical education... use them throughout your building, at outdoor events or even at your bus and pick-up areas. Multi-Dome Traffic Signs stand 36" high and have large surface areas (up to 16" by 16") so they can be seen from long distances. Multi-Dome Traffic Signs are constructed from a durable, lightweight corrugated styrene plastic, so they're safe if they tip and won't damage floors. Set includes 6 slip-on poles (no assembly required.). Dome base not included. Be sure to visit our sister site Wolverine Sports to order more multi-dome accessories and scooters.
Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.
Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.
The 350 Pro Series Parka is made with 300-denier polyester oxford fabric with white PU coating on backside and has seam sealed construction with thermal insulation for added warmth. The parka features 2" 3M brand silver reflective tape. The storm cuff keeps wind and snow out of critical areas. Also includes a hidden collar hood and adjustable cuffs. Pockets: two outside lower slash pockets with zippers and storm flaps; one outside upper radio pocket; one hidden inside wallet pocket with storm flap; and on inside general purpose pocket. Available in 3XL only. ANSI/ISEA 107 Class 3 compliant.