This lecture introduces the science of materials, focusing on the structure of materials. Topics covered include atomic bonding, states of matter, levels of solid structuring, and crystalline state. The lecture also discusses different types of bonds, such as ionic, covalent, and metallic, and explains the concept of hybridization of orbitals. It further explores the different states of matter, the influence of temperature on material states, and the distinction between amorphous and crystalline solids.