25 sustainable agriculture practices working model ideas

integrated farming system (IFS) model project (mixed crop ) for science exhibition | howtofunda

Sustainable agriculture is a scientific approach to farming that focuses on producing food in a way that protects the environment, conserves natural resources, and improves the quality of life for farmers and society. With growing population, climate change, soil degradation, and water scarcity, there is an urgent need to adopt farming methods that are both … Read more

25 easy and impressive Chemistry Working Model ideas for Class 10

chemistry working model on gas evolution reaction - science project for exhibition -diy - howtofunda

Here are 25 easy and impressive Chemistry Working Model ideas for Class 10 — all based on Class 10 NCERT chapters and perfect for science exhibitions. 1. Electrolysis of Water (Hydrogen & Oxygen Production) Graphite electrodes + battery + test tubes. 2. pH Scale & Universal Indicator Setup Acidic, neutral, basic solutions with color chart. … Read more

25 Chemistry Working Model ideas for Class 9

chemistry-project-model-making-diy-howtofunda

Here are 25 simple, creative, and easy Chemistry Working Model ideas for Class 9 — perfect for school exhibitions, project work, and practical demonstrations. 1. States of Matter Model Show solid–liquid–gas arrangement using balls, beads, and springs. 2. Water Purification Model DIY 3-layer filter: gravel, charcoal, sand + cotton. 3. Separation of Mixtures Filtration, sedimentation, … Read more

How to Make Automatic Street Light – Working Model for Science Exhibition (DIY Project)

automatic street light working model for science project exhibition - diy - science project academy - with infrared motion sensor

Concept / Principle: This project works on the principle of photoconductivity — using an LDR (Light Dependent Resistor).The LDR’s resistance decreases when light falls on it and increases in darkness.This change controls a transistor or relay circuit, which automatically turns ON the LED (street light) at night and OFF during the day. Main Concept:LDR senses … Read more

Wind Turbine Working Model – Electricity Generator (DIY Science Project)”

wind turbine working model - electricity generator - science exhibition - diy - science project academy

Concept / Principle: This model demonstrates how wind energy is converted into electrical energy using a wind turbine.When air (wind) blows on the blades, it makes them rotate — this rotation drives a DC motor (acting as a generator) that produces electric current to light up an LED bulb. Scientific Principle:Mechanical energy (rotation of turbine) … Read more