science working model
This is a working model showing Air, Water, and Land Pollution. On the left, we see factories and vehicles releasing smoke, causing air pollution.In the middle, the plastic tray represents a lake, which is getting polluted by factory waste using this syringe mechanism. You can also see a truck dumping garbage into the river. This … Read more
This is a working model of the human respiratory system.The plastic bottle represents the chest cavity.The two balloons inside are our lungs, and the straws act as the trachea and bronchi.The balloon at the bottom represents the diaphragm, which plays a key role in breathing. When we pull the bottom balloon (diaphragm) downward using the … Read more
Here’s a step-by-step guide on how to connect 3 LEDs in series with a 9V battery, switch, and resistor. Materials Required: Why Connect LEDs in Series? Video Step-by-Step Instructions: 1. Connect the Switch: 2. Series Connection of LEDs: 3. Add the Resistor: https://www.youtube.com/@howtofunda
Here’s a simple step-by-step guide to connect 3 LEDs in parallel with a 9V battery, switch, and resistors You Will Need: Circuit Overview: Each LED gets: Video Steps on Connection : 1. Connect the Switch: 2. Add Resistors to LEDs: 3. Complete the LED Circuit: When the switch is ON, all 3 LEDs glow equally … Read more
This working model demonstrates how electrical energy can be converted into different forms of energy: Materials Required: Video Step-by-Step Instructions: 1. Prepare the Cardboard Base: 2. Connect the Circuit: Wire the components as three parallel circuits from the 9V battery: For LED Light (Light Energy): For DC Motor + Fan Blade (Wind Energy): For Buzzer … Read more
This model demonstrates how wind energy can be converted into electrical energy using a wind turbine connected to a DC motor, which powers an LED bulb to light up a cardboard house. This model shows how wind energy is converted into electrical energy using a wind turbine connected to a DC motor. The electricity powers … Read more
An automatic barrier gate operates using a DC motor and a rotating arm, controlled manually or with sensors. It’s used to restrict or allow vehicle access in areas like parking zones or railway crossings. This model shows how an automatic barrier gate works using a DC motor to control the movement of the gate arm. … Read more
This working model is a Water Fountain, demonstrating how a closed water system uses a pump to circulate water. It also helps explain concepts of pressure, water recycling, and motor-powered flow systems. Such mechanisms are used in gardens, buildings, and artificial water features. This model demonstrates a recycling water fountain using a DC water pump … Read more
This model uses hydraulic pressure to compress a balloon or soft object between two platforms, showing how force applied to a small area can be transferred and multiplied using liquid-filled syringes. This is a Hydraulic Press model. It works on Pascal’s Law, which states that pressure applied to a fluid is transmitted equally in all … Read more
This model explains the process of photosynthesis—how plants make their food using sunlight, carbon dioxide, water, and chlorophyll. The model will have: Materials Required: Video Step-by-Step Instructions: 1. Make the Rotatable Base: 2. Create the Plant: 3. Setup the LED Sun: 4. Add Labeled Parts: 5. Add Rotating Mechanism: https://www.youtube.com/@howtofunda
“This model shows the natural Water Cycle that occurs on Earth. Water evaporates from oceans and rivers due to the sun’s heat, condenses to form clouds, then falls as rain or snow (precipitation), and finally collects in rivers, lakes, and oceans. This cycle is essential for life on Earth.” This model creatively demonstrates the four … Read more
This model shows how a motorized elevator (lift) works using simple materials. The cardboard is used to make a multi-story house, and a robo motor + woolen thread is used to raise and lower the lift cabin. Materials Required: Video Step-by-Step Instructions: 1. Make the Building (Lift Shaft): 2. Create the Lift Cabin: 3. Attach … Read more
A soil profile shows the different layers of soil formed over thousands of years. Each layer (called a horizon) has different composition, texture, and function: Materials Needed: Steps to Make the Model: 1. Prepare the Base: 2. Create the Soil Layers (Top to Bottom): 3. Add Details on Surface: 4. Label the Layers: Use small … Read more
This 3D model uses a large Earth ball at the center and showcases 5 key environmental protection themes around it. Each section visually shows what to do vs what not to do to help the Earth. Materials Required: Video Step-by-Step Instructions: 1. Make the Earth (Centerpiece): 2. Divide the Base into 5 Sections Around Earth: … Read more
Learn how to make a 3D Tornado working model for your science exhibition! This DIY tornado uses a DC motor, cotton, and cardboard to simulate the destructive effect of tornadoes on a town. Easy and innovative project idea for school science fairs. Simulate a rotating tornado using a cone-shaped cotton funnel, powered by a DC … Read more