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

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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

25 Chemistry Working Model Ideas for Class 11

atom working model with led lights for science project exhibition - diy - howtofunda

Here are 25 Chemistry Working Model Ideas for Class 11 — simple, practical, and perfect for school exhibitions. 1. Atomic Structure 3D Model Bohr model or quantum orbital shapes (s, p, d) with LEDs. 2. Periodic Table Working Model Interactive table with lights showing groups, periods, metals/non-metals. 3. Chemical Bonding (Ionic & Covalent Bonds) 3D … Read more

25 Chemistry Working Model Ideas for Class 12

electrolysis-science-project-working-model

Here are 25 Chemistry Working Model Ideas for Class 12 — all practical, exhibition-friendly, and based on NCERT concepts 1. Electrolysis of Water – Hydrogen & Oxygen Production Working model showing how water splits into H₂ and O₂ using graphite electrodes. 2. Galvanic Cell (Daniell Cell) Working Model Demonstrate Zn–Cu cell, salt bridge, flow of … Read more