Thermal energy is the energy that an object has due to the movement of its atoms and molecules. The more they move, the more thermal energy the object has.
This kind energy can be transferred from one object to another as heat. The amount of thermal energy an object has depends on its temperature, mass, and the types of atoms or molecules it contains.
When thermal energy is transferred to an object, it can cause the object to increase in temperature, change state (like melting or boiling), or even break apart.
