1. LABORATORY REPORTS

2. TYPES OF REPORTS Experimental Design Formal Report

3. EXPERIMENTAL DESIGN Used when you design the procedure. It is often more difficult because you need to think about how to conduct the experiment before you do it. It takes longer.

4. EXPERIMENTAL DESIGN 9 major sections A completed report will have all relevant sections completed.

5. SECTION ONE: TITLE The title should relate to the experiment. It should inform the reader of what is to come. An experiment studies the effect of heat on a new ceramic. How would you title it?

6. SECTION 2: HYPOTHESIS It is the question you are investigating along with your initial prediction of what might happen. MIGHT, not will happen, MIGHT!

7. SECTION 2: HYPOTHESIS A general format is: If _________, then ____________. If heat is applied to the ceramic, then its temperature will not increase.

8. SECTION 3: VARIABLES Independent Variable (IV) Dependent Variable (DV) Constants (or Controlled Variables)

9. SECTION 3: VARIABLES Independent Variable (IV) is the variable which is manipulated (intentionally changed by the experimenter).

10. SECTION 3: VARIABLES Dependent Variable (DV) is the one which may change based upon how the IV is changed. Another way to say this is, its not changing until the IV changes first.

11. SECTION 3: VARIABLES Constants (or controlled variables) are other factors which need to remain the same for the validity of the experiment.

12. SECTION 3: VARIABLES Lets practice identifying the IV and DV from the hypothesis: If heat is applied to the ceramic, then its temperature will not increase.

13. MORE PRACTICE If the ball has a larger diameter, then it will bounce higher. If the water is heated, then more of the solute will dissolve.

14. SECTION 4: PROCEDURE Its all about what you are doing, what you are using, how long, and how much.

15. SECTION 5: IMPROVEMENTS This section is written after your experiment has been completed. It is what you would change about your procedure (which does not mean you had a terrible procedure, but how you could make it bit better).

16. SECTION 5: IMPROVEMENTS Or it could be about a new idea you had to explore in a subsequent experiment! Its not about being wrong, but how to make thinks better or learn more.

17. SECTION 6: DATA TABLE Neat, organized and well labeled! Title Column titles with units Lines dividing columns and rows

18. SECTION 6: DATA TABLE Data in a data table may be qualitative or quantitative. Quantitative is numerical with units Qualitative is describing a non-numerical observation

19. A.Metallic shine B.Blue C.0.975 cm D.Vigorous bubbling E.34.2 s QUAL OR QUANT PRACTICE A.Qual B.Qual C.Quant D.Qual E.Quant

20. SECTION 7: GRAPHS Titled, labeled, scaled, and with units! Title Labels Units Data Points Scale

21. SECTION 8: QUESTIONS If any questions have been asked at the beginning of your experiment you should answer them here.

22. SECTION 9: CONCLUSION(S) In this section you will first reference your hypothesis and state if your evidence SUPPORTS or DOES NOT SUPPORT it.

23. SECTION 9: CONCLUSION(S) Then provide selected data from above which will demonstrate why you have selected support or does not support for you hypothesis. End this section with new questions or applications of your findings.

24. FORMAL REPORT

25. Title Purpose/Objectives Materials Summary of Procedure THE PARTS Data/Graphs Questions Conclusions

26. Most sections of the formal laboratory report are the same. Purpose/Objective and Summary of the Procedure is different

27. PURPOSE/ OBJECTIVE Purpose is the reason why you are doing this experiment. What are you trying to discover or figure out?

28. SUMMARY OF THE PROCEDURE Summaries are a generality about what you did. It is not step by step, but the overall picture. Always carefully record changes from the original procedure.

29. EXIT SLIP WITH NAME! 3. List 3 things you should include on a graph. 2. What are two differences between an experimental design lab and a formal report? 1. What is the difference between qualitative data and quantitative data?