science working model
In this creative and easy science project, we build a 3D periodic table model using cardboard, chopsticks (or skewers), and colored paper to represent different element groups like metals, nonmetals, noble gases, and more! This model visually represents all 118 elements in their correct positions using vertical chopsticks for a 3D effect, making it an … Read more
“This is a working model of acid rain. Factories release harmful gases like sulfur dioxide and nitrogen oxides into the air. These gases rise into the atmosphere and mix with water vapor in the clouds to form sulfuric and nitric acid.When it rains, this mixture falls to the ground as acid rain.Acid rain damages forests, … Read more
This is a detailed Nuclear Power Plant Working Model. The process starts in the fusion building (reactor), where nuclear fission generates heat. This heat is transferred via hot water pipes to the turbine building, where steam spins a turbine connected to a generator.Electricity is produced and sent through transmission lines to homes.The excess heat is … Read more
This is a working model of a solar-powered house. It shows how solar energy can be harnessed from the Sun using a solar panel installed on the roof. The panel converts sunlight into electricity, which lights up the house.This model promotes renewable energy, helps reduce electricity bills, and is environmentally friendly.The surrounding green garden adds … Read more
This model shows the contrast between afforestation and deforestation.On this side, afforestation is shown where more trees are planted. It supports biodiversity, maintains the water cycle, reduces pollution, and keeps the Earth cool. On the other side, deforestation is shown. Trees are cut down for construction, farming, or industries, which causes loss of wildlife, air … Read more
This working model shows the effect of global warming and how greenhouse gases like carbon dioxide trap heat in Earth’s atmosphere. When sunlight enters, some of it reflects back, but greenhouse gases trap most of the heat, raising the Earth’s temperature.In this box, you can see how the trapped heat makes the area warmer, simulating … Read more
This is a working model of a volcano, which demonstrates how magma inside the Earth rises and erupts as lava. Inside the volcano, we have a red LED light that simulates the glow of hot lava inside.When the switch is turned on, the LED glows, showing the intense heat and molten rock inside a volcano.Optionally, … Read more
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