Sometimes a hunch isn't enough. Learn how scientists make educated guesses called hypotheses to test their theories. A hypothesis is the foundation of the scientific method. Readers will learn how to construct a measurable and focused hypothesis to test in an experiment. Put on your lab coat and grab your goggles! It is time to step into science! This engaging series explores each step in the scientific method. Informative text, helpful hints, and hands-on experiments will motivate readers as they learn to implement the six steps in the scientific method.