This 3-page worksheet includes a short description of four experiments and asks students to identify the independent variable, dependent variable, control groups, experimental group(s) and possible hypothesis for each one. This version includes a detailed answer key and explanations, over 5 pages in total. [My other product Experiments & Identifying Variables v1.0 includes the same experiments, but no answer key and fewer questions.] The worksheet could be used as homework, classwork, a lo