What is an example of matter?

An example of matter could be water. Water is one of the most common substances found on Earth and can exist in three states of matter: solid (ice), liquid, and gas (water vapor). Its molecular structure consists of two hydrogen atoms and one oxygen atom, which gives it important properties such as polarity and cohesive forces. Water is essential for life and can be found in various forms, including oceans, lakes, rivers, and even in our bodies. The physical and chemical properties of water make it a versatile and important substance in many fields, including chemistry, biology, and geology.