Materials testing is the process of evaluating the properties and performance of various materials, such as metals, plastics, and composites. This testing helps determine how materials will behave under different conditions, including stress, temperature, and environmental factors. Common tests include tensile strength, hardness, and fatigue testing, which provide essential data for engineers and designers. The results from materials testing are crucial for industries like construction, automotive, and aerospace, where safety and reliability are paramount. By understanding the characteristics of materials, manufacturers can make informed decisions about material selection and ensure that products meet required standards and regulations.