National Health Museum
Access Excellence: Writing Hypotheses
This informative page describes the true purposes of the hypothesis and how it should be used. Not only shows how they are written, but also helps students figure out the dependent versus independent variable.
McGraw Hill
Glencoe Publishing: Practicing Scientific Processes
This site from Glencoe Publishing not only explains hypothesis but also tells how to design an experiment to test your hypothesis. Includes the difficult task of "Separating and controlling variables."