Metal oxides are compounds formed when metals react with oxygen. They typically consist of a metal element, like iron or zinc, combined with oxygen. These compounds can be found in nature, such as in minerals, and are often used in various applications, including electronics, ceramics, and catalysts. Metal oxides can exhibit different properties, such as being conductive or insulating, depending on their composition and structure. Many metal oxides play a crucial role in technology and industry. For example, titanium dioxide is widely used in paints and sunscreens due to its ability to block UV light. Additionally, copper oxide is utilized in batteries and sensors, showcasing the versatility and importance of metal oxides in our daily lives.