Temperature sensitive materials are substances that change their properties in response to temperature variations. These materials can expand, contract, or alter their electrical or optical characteristics when exposed to heat or cold. Common examples include thermochromic materials, which change color with temperature, and shape memory alloys, which can return to a predetermined shape when heated. These materials are widely used in various applications, such as in smart textiles that adjust to body temperature, or in temperature sensors that monitor environmental conditions. Their unique properties make them valuable in industries like healthcare, electronics, and automotive engineering.