Fact 1: An electric stove transforms electrical energy to heat energy.

Fact 2: When using an electric stove, match the pan size to the cooking element.

Given the two facts above, answer the question "What is used to cook with a pan?" with the following options: 
- Heat energy
 - Solar energy
 - leaves
 - energy
 - trees
 - bushes
 - heating liquids
 - oysters


 

 Heat energy        