A.S. International

STEM Lab Dynamo Models are hands-on educational tools for teaching energy conversion (mechanical to electrical), electromagnetism, and basic circuits, showing how motion generates power, used in classrooms for experiments, science fairs, and DIY projects like building hand-crank generators or wind turbines to light LEDs or charge devices, connecting physics to real-world power generation. 

A STEM lab tornado model is primarily used as an educational tool for hands-on learning about meteorology and atmospheric physics. It helps students visualize the formation and behavior of a vortex in a safe, controlled environment. Primary Uses

• Understanding Tornado Formation: The main use is to demonstrate how air pressure, wind speed, and the rotation of air currents lead to the formation of a funnel-shaped vortex, similar to a real tornado.
• STEM Education: These models are a core component of science, technology, engineering, and mathematics (STEM) curricula in schools and at home. They provide a practical application of theoretical knowledge, encouraging critical thinking, problem-solving, and curiosity about natural phenomena.
• Classroom Demonstrations and Science Fairs: Due to their visual nature and relatively simple setup, the models are excellent for classroom demonstrations, group activities, or student-led science fair projects where complex weather concepts need to be made accessible and engaging.
• Experimentation: Users can manipulate variables, such as the speed of rotation (in some electronic models) or adding "debris" (like foam balls or glitter) to the water, to observe how different conditions affect the tornado's size, speed, and force.
• Structural Engineering Challenges: Some STEM activities use the tornado model in design challenges where students build miniature structures and test their ability to withstand the "winds" of the simulated storm, aligning with engineering standards.
• Home Learning and Entertainment: They serve as interactive toys for children with an interest in weather, providing screen-free entertainment and parent-child bonding opportunities while exploring science concepts. 

Key Scientific Principles DemonstratedThe models allow for the exploration of several key scientific principles:

• Centripetal Force: The force that pulls the water or air towards the center to form the vortex.
• Fluid Dynamics: The study of how liquids and gases flow and interact with their surroundings.
• Air Pressure: Understanding the differences in air pressure that drive the movement of the air/water in the model.
• Kinetic and Potential Energy: Observing the conversion of energy as water flows from one bottle to another in a simple tornado tube model. 

Overall, the primary use is to bridge the gap between abstract scientific theory and observable reality, making the science of weather patterns tangible and exciting for learners of all ages.  

Earth layer models, often made with materials like clay, styrofoam, or food, are used in education to visualize and teach the Earth's internal structure (crust, mantle, outer core, inner core) for better understanding of geology, plate tectonics, and even energy resources, while sophisticated Earth system models help scientists predict climate change, water cycles, and natural hazards like earthquakes. 

A STEM lab Archimedes Screw is used to demonstrate lifting water (or other materials like grain/slurry) from a lower to a higher elevation, a principle vital for irrigation, wastewater treatment plants, and even some amusement park rides, showcasing simple machines, fluid dynamics, and mechanical engineering by trapping and raising small volumes with each rotation of a helical screw inside a tube. 

An electric bell model demonstrates electromagnetism, using an electromagnet to repeatedly strike a gong for signaling in homes (doorbells), schools (class bells), transport (rail crossings), and for alarms like fire and burglar systems, providing simple, low-power warning sounds. 

Corner Mirror particularly in the context of a periscope, uses two flat mirrors positioned at 45-degree angles to each other within a tube. This arrangement allows light entering the top mirror to be reflected, then reflected again by the bottom mirror, and finally directed to the viewer's eye

A STEM Lab Hand Pump is used as an interactive educational tool to teach principles of fluid dynamics, air pressure, suction, and engineering through hands-on building and play, helping kids understand how liquids move, build simple water circuits, and learn basic physics, often as a DIY kit for problem-solving and scientific inquiry. 

STEM lab gyroscopes are used to teach fundamental physics (angular momentum, precession) through hands-on building and observation, illustrating real-world applications in navigation (planes, ships, spacecraft), stabilization (drones, bikes, VR), and modern tech like smartphones, helping students understand how these spinning devices provide orientation, balance, and motion sensing for everything from satellites to gaming. 

A Stem Lab Magnetic Crane is an educational kit/model used to teach principles of electromagnetism, demonstrating how electricity creates magnetism to lift metal, used in science projects for learning about force, circuits, and real-world industrial applications in recycling/factories for lifting scrap metal, showcasing STEM concepts like force, energy, and innovation for kids and students. 

STEM lab floating ball kits use airflow (via fans or breath) to demonstrate fundamental physics principles like Bernoulli's Principle, showing how fast-moving air creates low pressure, enabling a light ball to levitate, while also teaching fluid dynamics, air pressure, magnetism, and developing fine motor skills, focus, and critical thinking in students. Uses range from basic school science to specialized therapy (oral-motor strength) and science fair projects, making complex concepts tangible and engaging. 

A STEM lab periscope uses light reflection (optics) to see over/around obstacles, teaching principles of physics, DIY construction, and real-world applications like in submarines, military, rescue, or nuclear reactors, fostering critical thinking and observation skills in students. It works by using two angled mirrors/prisms to redirect light, allowing observation from hidden or obstructed viewpoints, making it a popular hands-on learning tool. 

Van de Graaff generators are used to create high-voltage static electricity for particle acceleration in nuclear research, producing X-ray beams for medicine, sterilizing food, demonstrating electrostatics in education (like making hair stand up), and studying nuclear reactions, essentially acting as early particle accelerators or "atom smashers" for physics experiments. 

The Newton Colour Disc Model (or Newton's Disc) is an educational tool used in physics to demonstrate that white light is a combination of all colors in the visible spectrum, proving that white light isn't pure but a blend. Its primary use is for hands-on experiments, showing how rotating the disc (with red, orange, yellow, green, blue, indigo, violet segments) at high speeds causes the colors to merge into white or pale gray, illustrating color addition and the persistence of vision phenomenon. 

Series circuits (single path, voltage divides, current same) are great for simple tasks like flashlights & old Christmas lights where one bulb failure stops all, or for voltage division; parallel circuits (multiple paths, same voltage, current divides) are for household wiring, power strips, and modern lights where each device works independently and gets full voltage, making them reliable for home & complex electronics.  

A type of electroscope that consists of two gold leaves and is used for detecting the electrical charge of the body and for the classification of its polarity.

A "bell in a bell jar" is primarily an educational apparatus demonstrating that sound needs a medium (like air) to travel; by ringing a bell inside a sealed jar and pumping the air out, the sound fades because there are no air particles for the sound waves to vibrate through, proving sound can't travel in a vacuum, with related uses including vacuum experiments for air resistance and chemistry. 

A STEM Lab Newton's Cradle is a hands-on physics demonstration tool used to visually teach concepts like conservation of momentum, conservation of energy, and Newton's Third Law (action-reaction) through the transfer of energy in colliding spheres, serving as a tangible model for complex physics principles in classrooms, labs, and for general scientific exploration. It helps students understand energy transformations (potential to kinetic) and how energy/momentum travels through a system, often using video analysis with smartphones for deeper study. 

The "STEM Lab Color Shadow" activity uses colored lights to help people, especially students, explore additive color mixing, light behavior, and human color perception. Participants learn that white light is composed of various colors and how blocking specific wavelengths creates colored shadows. 

The Leaning Tower of Pisa, originally built as a freestanding bell tower (campanile) for the Pisa Cathedral to showcase the city's wealth, now primarily serves as a major tourist attraction, a symbol of architectural resilience, and a site for artistic inspiration, though it once hosted legendary physics experiments by Galileo and its bells still ring for religious purposes. 

The "Cone Run Uphill" is a classic physics demonstration using a double-ended cone on V-shaped tracks, appearing to defy gravity by rolling uphill because its center of mass actually moves downward as the wider track lowers it, making it great for teaching physics concepts, optical illusions, STEM education, and as a fun desk toy/executive gift that illustrates energy conservation and perception. 

Product Detls: Conveyor Length
2 meter Material
plastic Color
white Country of Origin
Made in India
Model Type
Working Model · An Archimedes' screw is a simple machine used to lift water from a lower to a higher level, and it's a great STEM lab project. It consists of a screw (helical surface) inside a hollow pipe. When the screw rotates, it moves water upwards within the pipe. · Components: A central cylindrical shaft, a helical blade (often made of a flexible material like tubing), and a hollow cylinder/pipe.

Tornadoes are not very frequent. A tornado is a dark funnel. shaped cloud that reaches from the sky to the ground. Most of the tornadoes are weak. A violent tornado can travel at speeds of about 300 km/h. Tornadoes may form within cyclones. Are you interested in learning more about tornadoes? Are you a student looking up information for a class project? Then you’ve come to the right place! This DIY kit gives you an opportunity to make your own tornado.

· A dynamo uses the principle of electromagnetic induction when in operation- essentially a magnet rotates within a coil of wire to produce a current. · When the handle turns, electricity is made which lights a small lamp. Dynamos are easy to come by from cycle shops and the wiring is simple- connect it in the place of a battery in a simple lamp circuit. · A dynamo is basically an electric motor that works in reverse, small motors can actually be used to generate electricity – by fixing a small propeller (avlable from science or technology suppliers) to the motor shaft and connecting to a sensitive voltmeter a current will flow when the propeller turns. · A model wind turbine can be made in this way. · As examples of dynamos in action, dynamo powered torches and radios are now avlable in Highstreet stores as well as through lab suppliers. · Dynamos are often referred to as turbines when describing the types that create high voltages, such as the turbines in hydroelectric plants.

Product Detls: Material
Plastic Usage/Application
For Laboratory Lab Color
Yellow & Blue Base Shape
rectangular Weight
600gm Country of Origin
Made in India A typical floating ball STEM lab item kit for educational purposes includes a Plastic base and frame, a transparent tube for rflow, and a lightweight foam ball. The kit is designed to demonstrate buoyancy and equilibrium principles. Some kits also include a fan or blower to create the rflow necessary to suspend the ball, and may require batteries for operation.

Product Detls: Frame Material
Wooden Case Material
Wood Finish
Polished Country of Origin
Made in India Corner Mirror particularly in the context of a periscope, uses two flat mirrors positioned at 45-degree angles to each other within a tube. This arrangement allows light entering the top mirror to be reflected, then reflected agn by the bottom mirror, and finally directed to the viewer's eye. The 45-degree angle ensures that the reflected light travels strght across the tube, creating a clear view of the object from the top of the model to the bottom.

Product Detls: Voltage
220 V
Frequency
50 Hz Usage/Application
Laboratory Material
Aluminium Country of Origin
Made in India Condition
New Van De Graaff Generator is specially designed for electrostatic experiments and where continuous source of high voltage is required. Avlable as hand Driven or Motorised. Charge collecting Belt: Silicon rubber having excellent insulation resistance. Charge collecting combs: Aluminum mesh, clearly visible.

A magnetic crane, also known as an electromagnetic crane or lifting magnet, is a type of crane that uses an electromagnet to lift and move heavy loads. Here’s an overview of how a magnetic crane works and its key components: 1. **Electromagnet**: – The core component of a magnetic crane is the electromagnet, which consists of a coil of wire wound around a ferromagnetic core. – When an electric current passes through the coil, it generates a magnetic field, turning the electromagnet into a powerful magnet capable of lifting heavy loads. 2. **Power Supply**: – The electromagnet requires a power supply to energize the coil and generate the magnetic field. – The power supply is typically provided by an electrical source such as a generator or mns electricity. 3. **Control System**: – A control system is used to regulate the power supply to the electromagnet, allowing the operator to control the lifting and lowering of loads. – The control system may include switches, buttons, or a control panel that enables the operator to adjust the strength of the magnetic field and activate or deactivate the electromagnet.

the working principle of a gyroscope model is based on gravity. It is explned as the product of angular momentum, which is experienced by the torque on a disc to produce a gyroscopic precession in the spinning wheel. The device features a spinning disc securely mounted on the base, allowing it to move freely in multiple directions. This ensures that the orientation stays consistent, no matter how the base moves

The resistance in a series circuit is always greater than the resistance of any individual resistor, while the resistance in a parallel circuit is always less than the resistance of any individual resistor. This is because of the way the current flows through the resistors: Series circuit The current flows through each resistor in turn, so the resistance increases. The total resistance is the sum of the individual resistances. Parallel circuit The current can flow through any of the resistors, so the resistance decreases. The total resistance is the sum of the reciprocals of the individual resistances.

· A periscope uses the laws of reflection to allow you to see objects that are not in direct line of sight. · The working principle of a periscope is based on multiple reflections of light from mirrors or prisms: · Light from an object: Strikes the top mirror of the periscope. · Reflection: The light reflects at a 90-degree angle down the periscope tube · Second mirror: The light strikes another mirror at the bottom of the periscope. · Reflection agn: The light is reflected agn and into the viewer's eye · A simple periscope uses two mirrors that are parallel to each other and at a 45-degree angle to the tube's axis. · More complex periscopes may use prisms instead of mirrors.

· An electroscope experiment can teach you how to detect electric charge and how the principles of induction, conduction, and grounding apply to an electroscope. · Here are some things to know about electroscope experiments: · How it works · When a charged object is brought near an electroscope, the leaves spread apart or come closer depending on the charge of the object. · If the leaves spread apart, the object has the same charge as the electroscope. If the leaves come closer, the object has an opposite charge