science project models

Introduction DNA, or Deoxyribonucleic Acid, is the molecule that carries the genetic information of all living organisms. It is structured like a double helix – two twisted strands connected by base pairs (A-T and G-C). For science exhibitions, creating a rotating DNA working model helps students visualize its structure and importance in heredity, cell functions, … Read more

Introduction The Bohr Atomic Model, proposed by Danish physicist Niels Bohr in 1913, explains the structure of an atom in a simple way. According to this model, an atom has a positively charged nucleus at the center, and electrons revolve around it in fixed circular orbits, similar to how planets orbit the Sun. This DIY … Read more

Air pollution is one of the most dangerous environmental problems in the modern world. Smoke from factories, vehicles, apartments, and houses fills the air with harmful particles and gases like carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO₂), and fine dust. This reduces air quality, harms human health, damages crops, and contributes to global … Read more

An atom is the smallest unit of matter, consisting of protons, neutrons, and electrons. This model will use plastic balls, GI metal wire, LED lights, and a battery to represent these particles. Materials Required Step-by-Step Construction 1. Base Preparation 2. Nucleus (Center of Atom) 3. Electron Orbits 4. Electrons 5. Electrical Circuit 6. Finishing https://www.youtube.com/@howtofunda

Introduction Waste management is one of the greatest challenges of our time. With increasing urbanization and population, the amount of waste generated daily has risen drastically. If not managed properly, waste leads to pollution, health hazards, and environmental degradation. The solution lies in segregating waste, recycling materials, generating energy, and disposing non-recyclables safely. This working … Read more