Earth, fire, water and air. the four elements and how they are used for ritual.
Not all witches use elemental correspondences, and among those who do, there is a great deal of variation. The most common elements used in Wicca and witchcraft are earth, air, fire, and water. Spirit is often added to acknowledge the spiritual component of them all. You will have to experiment to find what works best for you.
When invoking the elements, they are often associated with the cardinal directions, often with Air in the East, Fire in the South, Water in the West, and Earth in the North. However, this is by no means the only possibility. The elements themselves may vary as well. For example, some Celtic traditions use earth, sky, and water, and others use the cosmological realms of Underworld, Earth and Sky.
Thus, the correspondences listed within this page provide only one possibility among many. The sources for these correspondences include Scott Cunningham, Silver Ravenwolf, Amber Wolfe, Yasmine Galenorn, and Branwen’s Book of Shadows which undoubtedly owes credit to dozens of unnamed sources. Books by these renowned authors can be purchased though out online shop for further study.