Light is a form of energy. White light is composed of colors that can be revealed and separated using a prism. Light travels in straight paths. Reflection, refraction, and absorption are properties of light. Concave and convex lenses can change the path of light.
People use a process to design and develop a product.
Function, durability, cost, environmental concerns and aesthetics need to be considered in product design. Materials used in design are selected based on their properties. Technology assists in the development of new designs, products and inventions. People of different races, cultures and genders have made significant contributions to society through product design. A great diversity of living things exist on earth.