As essential as oxygen is for our bodies, it's also vital to our atmosphere, the Earth's crust, and for the creation of water. Luckily for us, it's one of the most abundant elements in the world. The other elements that make up the Oxygen Family on the Periodic Table of Elements—sulfur, selenium, tellurium, and polonium—each play a crucial role in our lives. Readers will be introduced to the Oxygen Family and learn how these elements are connected, found, used, and structured.