What is the specific heat of aluminum ?
So essentially, .900 joules per gram times degree celsius. or 904 joules per kilogram times degree kelvin.
Definition of Specific Heat: The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
Remember that heat is just energy.
In the future, you can search "Specific Heat Aluminum" on Wolframalpha.com. It's pretty neat.