4. Suggest additional and modfied hypotheses that might be tested in the future. Briefly describe your next experiment. 5. Refer to Appendix A “Scientific Writing and Communication, at the end of your lab manual. Briefly describe the four major parts of a scientific paper What is the abstract? What information is found in a References Cited sec- tion? What sections of a scientific paper always include references? Reviewing Your Knowledge 1. Review the major components of an experiment by matching the following terms to the correct definition: control, controlled variables, level of treat ment, dependent variable, replication, procedure, prediction, hypothesis independent variable a. Variables that are kept constant during the experiment (variables not being manipulated) b. Tentative explanation for an observation c. What the investigator varies in the experiment (for example, time. pH, temperature, concentration) d. Process used to measure the dependent variable