What are the four elements? In Greek philosophy, the four elements of water, fire, earth, and air made up everything in our world. Even though we know today things are made from atoms and molecules, the four elements are still an important part of our daily lives. From fires blazing bright to the water in the ocean, the elements are found all over Earth. In this colorful set, readers discover what makes each of the four elements important and how the elements influence their daily lives through the approachable text featured in each volume.