Science Models

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what you have to arrange - 1. 24/18 inch any hardsheet 2. Glue gun and stick Abstarct - This project is an interactive, illuminated circular food chain display designed to show the flow of energy through an ecosystem. At the center of the base, use an LED to represent the Sun, the primary energy source that powers the entire system. Arrange the primary elements—Grass (Producers), Grasshopper (Primary Consumer), Snake (Secondary Consumer), and Hawk (Tertiary Consumer)—along the outer edge of a rotating circular platform. As the user rotates the base by hand, each stage of the chain aligns with the sunlight, symbolizing the transfer of energy. Include Mushrooms (Decomposers) at the end of the sequence to show how nutrients are returned to the soil to help the grass grow again. To make it more detailed, you can add small figures of other animals like frogs or mice to create a more complex food web. Use color-coded arrows between the figures to indicate the direction of energy flow from one organism to another. The LED can be wired to a simple battery pack hidden beneath the rotating base for a clean, professional look. This tactile, moving model effectively demonstrates the cyclical nature of life and the importance of each link in the biological chain. Finally, label each section clearly so viewers can identify the roles of producers.

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• Item Code: PP9865
• Production Capacity: 10
• Delivery Time: 05 Days
• Packaging Details: As per video

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PROJECTRONICS #schoolproject #scienceproject #smartbridge Abstarct - This smart bridge monitoring system integrates multiple safety mechanisms using an Arduino. Two separate metal plates act as a crack detector - any widening gap breaks the circuit, triggering an alert. A piezo sensor serves as the earthquake detector by measuring vibrations exceeding safe thresholds. For overload monitoring, strategically placed switches activate under excessive weight. The system processes all inputs through the Arduino, which controls the output components. When any hazard is detected, a red LED illuminates and a buzzer sounds an alarm. Simultaneously, a servo motor closes a gate barrier to prevent access. An LCD screen displays the specific fault (crack, earthquake, or overload) for immediate identification. Under normal, safe conditions, a green LED remains lit, indicating the bridge is operational. This provides a comprehensive, automated safety solution for infrastructure monitoring. What you have to arrange - 1. 18x24 inch any hardsheet 2. Glue gun and sticks We deals with - Inhouse project training in school and colleges - Online class/help for invidual projects - 1000s of readymade projects - Customized circuits on request - Both electronics and art n craft materila, retail and wholeselling sale

Additional Information:

• Item Code: PP1114
• Production Capacity: 05
• Delivery Time: 05 Days
• Packaging Details: As per video

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#schoolproject #btechprojects #electricalengineering You have to arrange - 1 - 24x18 plywood or ny hardsheet 2 - Gluegun and stick 3 - solar panel 12v 5 watt 4 - 3.7v x 3 - Battery (18650 model) We deals with - Inhouse project training in school and colleges - Online class/help for invidual projects - 1000s of readymade projects - Customized circuits on request - Both electronics and art n craft materila, retail and wholeselling sale Abstarct - The process begins with the solar panel, which captures photons to generate DC electricity, which is then regulated by the MPPT (Maximum Power Point Tracking) controller to ensure the Lithium-ion battery bank (configured with three $3.7\text{V}$ cells) charges at peak efficiency. This stored DC energy provides the input voltage for the inverter circuit. The CD4047 IC acts as the heart of the system, configured as an astable multivibrator to produce a stable $50\text{Hz}$ square wave oscillation. These low-power pulses are fed into the gates of two IRF840 MOSFET modules, which act as high-speed switches, rapidly toggling the DC current in a push-pull configuration. This switching action creates an alternating magnetic field within the primary winding of a step-up transformer. The transformer then induces a higher voltage in its secondary winding, stepping the low-voltage DC pulses up to approximately $220\text{V}$ AC. Finally, this high-voltage output is used to drive the LED bulb AC load, completing the conversion from renewable solar energy to usable light. Solar Energy, Inverter Circuit Design, Photovoltaic System, DC to AC Converter, Renewable Energy Project, Pure Sine Wave Inverter, Solar Panel Integration, Electrical Engineering Project, DIY Solar Power, Power Electronics, Battery Management System (BMS), 12V to 230V Inverter, Pulse Width Modulation (PWM), H-Bridge Circuit, Arduino Solar Project, Sustainable Tech, Clean Energy DIY, Home Automation, Voltage Regulation, Transformerless Inverter, Solar Charge Controller, MPPT Technology, Off-Grid Power System, Engineering Final Year Project.

Additional Information:

• Item Code: PJE022
• Production Capacity: 10
• Delivery Time: 05 Days
• Packaging Details: As per video

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Abstarct - The greenhouse effect is a natural process where certain gases in Earth's atmosphere, like carbon dioxide and methane, trap heat from the sun, acting like a warm blanket to keep our planet habitable. However, human activities, primarily the burning of fossil fuels for energy, deforestation, and industrial processes, are drastically increasing the concentration of these greenhouse gases. This enhanced greenhouse effect causes the atmosphere to trap excessive heat, leading to a steady rise in global average temperatures, a phenomenon known as global warming. The consequences of this warming are widespread and severe, including the rapid melting of polar ice caps and glaciers, which contributes to rising sea levels that threaten coastal communities. It also intensifies extreme weather events, making hurricanes stronger, droughts longer, and heatwaves more frequent and deadly. Furthermore, it disrupts delicate ecosystems, leading to coral bleaching and loss of biodiversity. For this school project, we can demonstrate this concept using a simple model: two jars (one with added CO2 from exhaled air or vinegar-baking soda reaction) placed under a lamp will show how the jar with higher gas concentration traps more heat. This project highlights the urgent need for solutions like transitioning to renewable energy sources, promoting sustainable practices, and conserving forests to mitigate this critical environmental challenge. You have to arrange - 1. 24x18 and 24x12 inch any hardsheet 2. Glue gun and stick

Additional Information:

• Item Code: PP5533
• Production Capacity: 05
• Delivery Time: 05 Days
• Packaging Details: Background paper, trees, houses, tower, etc (No base )