Conduct an experiment
What is controlled experiment?
In this step,you test your hypothesis by doing controlled experiment. You may make the size of metal rods and ceramic rods. You need to apply the same heat source and measure temperature in the same way. The factors that are kept constant, e.g. size of the rods and the heat source, are controlled parameters. The factor that you change between the set or group, e.g. the sort of materials (metals or ceramics) is called a variable parameter. The results will show the effect of the variable parameter. You also have to record data. Data are the recorded facts, information or measurements from the experiment.