How much heat is required to raise the temperature of various substances by an equal amount?

If you try to warm up equal amounts of water, vegetable oil and salt water with identical heat sources, you will notice that they don't get warmed up at the same rate. One may get to a certain temperature after 5 minutes, while it takes 8 or 11 minutes for others to get to the same temperature. In this project we want to study this phenomena and compare this property of different materials. 

 Project description:
You will perform experiments to show how different materials react to a certain amount of heat. How fast do they warm up? How much heat energy can they store?
 Details of this project
More details or support for this project is available at the members section of web site. Material needed for experiment or a science kit about this title may be available at