sowmya 
You can build an earthquake alarm working model with a school building concept, where the alarm is placed in the compound to alert students and people. Materials Needed: Cardboard & Color Paper (for the school building, compound, and landscape)Metal Ball or Pendulum (for vibration detection)Two Metal Strips or Aluminum Foil (to act as contact points)9V … Read more
you can build a river flood alarm working model with a riverside city and village concept, where the alarm activates when the water level rises to a dangerous level. Materials Needed: Cardboard & Color Paper (for city, village, river, and landscape)Plastic Tray or Small Tank (to represent the river)Water (to simulate flooding)Metal Probes (Nails or … Read more
You can build natural disaster alert alarm working models for flood, earthquake, and fire detection using simple components like LEDs, buzzers, and sensors. 1. Flood Alarm Model Concept: The water level rises and completes a circuit to trigger an alarm. Materials Needed: How It Works: 2. Earthquake Alarm Model Concept: A simple pendulum detects vibrations … Read more
For your microscope working model, here’s how you can build it using cardboard, an LED light, a transparent sheet, a cardboard pipe, color paper, and mobile zoom: Materials Needed: Steps to Build: How It Works: https://www.youtube.com/@howtofunda
This project will demonstrate hydroponics, a method of growing plants without soil, using waste bottles, pipes, a DC water pump, a 9V battery, switch, plastic tray, color paper, and a glue gun. The model will simulate how plants can grow in a water-based system, providing a real-life application of modern agricultural techniques. Materials Required: Waste … Read more
This project will demonstrate a volcanic eruption using waste papers, glue, paint, a plastic bottle for the eruption effect with smoke. The model will showcase how a volcano works with lava and smoke, all created with simple materials! Materials Required: Waste Paper (old newspapers or an scrap paper for the volcano structure)Glue (to bond the … Read more
This project will demonstrate both a Solar Eclipse and a Lunar Eclipse using cardboard, LED lights, thermocol balls, 9V battery, and a slow-running motor. The model will visually show how the moon, Earth, and Sun align during these natural phenomena. Materials Required: Cardboard (for base and structural support)LED Light (for the Sun)Thermocol Balls (for the … Read more
This model will demonstrate the working of the human heart, focusing on how blood flows through the heart using syringes, paint, cardboard, and aluminum foil. It will show the basic heart structure (atria, ventricles, and valves) and how the pumping action occurs. Materials Required: Cardboard (for heart structure and base)Syringes (for simulating blood flow)Aluminum foil … Read more
This model will demonstrate the cycle of day and night using LED lights and a rotating Earth model. It will show how the Earth’s rotation around the Sun causes the alternation between day and night. Materials Required: Cardboard (for base and structure)LED Lights (for Sun and Earth’s illumination)DC Motor (for rotating Earth)Small Plastic Ball (for … Read more
This project will demonstrate the solar system using LED lights, a rotating mechanism (optional), and materials like cardboard, color paper, and small balls. The LED lights will represent the Sun and planets to make the model interactive and visually appealing. Materials Required: Cardboard (Base & Background) – For mounting the planetsColor Paper/Paint – For decorating … Read more
This model will visually represent the structure of an atom, including protons, neutrons, and electrons, using GI metal wire, small plastic balls, color paper, cardboard, and a glue gun. Materials Required: GI metal wire (for electron orbits)Small plastic balls (for protons, neutrons, and electrons)Color paper (for labeling)Cardboard (for the base)Glue gun & glue sticks (to … Read more
This model will demonstrate how drip irrigation works using paper cups, a DC water pump, a plastic bottle, and a plastic tray. It will show how water is supplied directly to plant roots in a controlled manner, saving water and promoting efficient irrigation. Materials Required: Paper cups (to represent water tanks and plant pots)DC water … Read more
This project will demonstrate how an earthquake alarm works using cardboard, color paper, a buzzer, a 9V battery, and metal wire. The alarm will be triggered by vibrations or movement, simulating how real earthquake warning systems function. Materials Required: Cardboard (for base and structure)Color paper (for decoration and labels)Buzzer (to produce the alarm sound)9V battery … Read more
This model will compare afforestation (planting trees) and deforestation (cutting trees) using color paper, cardboard, and dried plant stems. It will effectively show the impact of human activities on forests and the environment. Materials Required: Cardboard (for the base and background)Color paper (for trees, sky, and soil)Dried plant stems (for real tree effects)Sketch pens & … Read more
This model will demonstrate how forest fires start and spread, their impact on the environment, and ways to prevent them. You will use color paper, cardboard, dried plants, and LED lights for fire effects to create a visually engaging project. Materials Required: Cardboard (for base and background)Color paper (for trees, sky, and fire effects)Paint & … Read more