1. oneone IN-5 Objective: To review the elements of a lab report in order to present experimental findings. Core Question: How can experimental findings be presented? Drill: 1. Take out all your hypothesis, procedures, data chart, and log book. 2. Get a copy of each ditto from the SET. TODAY YOU WILL TAKE NOTES AS NEEDED.

2. oneone IN-5 TITLE 1.Key words capitalized 2.Appropriate to project question

3. oneone IN-5 Problem Question 1.How does … affect …? 2.Based on assigned variable

4. oneone IN-5 HYPOTHESIS 1.3 parts 2.If …, then …, because …

5. oneone IN-5 Materials 1.Number items in list. 2.Include amounts when necessary. 3.Spacing should be even and neat. 4.The catapult is one of the materials. Do not include the materials to build the catapult.

6. oneone IN-5 PROCEDURES 1.Steps are numbered. 2.“Gather materials” is not a step. 3.Begin each step with an action verb. 4.Include only 1 main step per number. 5.Steps are sequential, logical, and specific.

7. oneone IN-5 DATA CHART 1.Title is appropriate. 2.Include units in your headings. 3.Follow guidelines on “Data Chart” handout. (found in your SAVE section) 4.Averages should be calculated to the same degree as your measurements.

8. oneone IN-5 GRAPH 1.Extra Credit 2.Deals only with average data, not individual trials 3.Probably a bar graph format 4.Include proper labels and appropriate spacing.

9. oneone IN-5 CONCLUSION AND ANALYSIS (handout) 1.Restate problem question. 2.Restate the hypothesis (no “because”) 3.Support/refute the hypothesis USING LAB DATA (averages). 4.Do not guess as to why things occurred. 5.Provide a concluding statement answering the main problem question. 6.Do not include any personal pronouns.

10. oneone IN-5 The problem explored in this investigation was, “How does the color of the base structure of the catapult affect the distance that a marshmallow is launched?” The hypothesis proposed that, “If the base structure of the catapult is red, then the marshmallow will launch the greatest distance.” This hypothesis was proven incorrect. The launches from the red catapult averaged 17.43 m. This was not significantly different from the blue catapult that averaged a launch distance of 16.78 m or the yellow catapult that averaged a launch distance of 17.51 m. However the catapult with the orange base structure averaged a launch distance of 22.74 m. This is significantly greater than the other catapults. Therefore, it can be concluded that if the base structure of a catapult is orange than a marshmallow will launch the greatest distance.

11. oneone IN-5 SOURCES OF ERROR (Uncorrected problems that could have led to faulty data) 1.Difficulty with setting the exact launch angle could cause errors in distances. 2.Problems identifying the exact landing spot could cause errors in distances. 3.Stretching of the rubber band after repeated trials could cause inconsistent forces on the catapult arm.

12. oneone IN-5 FOLLOW UP QUESTIONS (Something else to think about) 1.Do all secondary colors lead to a greater launch distance? 2.How does the length of the lever arm affect the launch distance of a catapult? 3.How would the color of the marshmallow affect the launch distance?

13. oneone IN-5 OTHER INFORMATION AND TIPS 1.Your report should be neat. It may be typed. 2.Label each section. 3.Avoid all personal pronouns. 4.Make sure that your name is on the report and that multiple pages are secured. 5.Groups may share data and procedures, but each group member is to write his/her own conclusion. 6.Due Date: ______________

14. oneone IN-5 GRADE SHEET