1. Graphing

2. Sample Experiment How big will a goldfish get if you keep on feeding it? ?

3. Experimental Design Take 10 goldfish. Feed one 1 food pellet every day. Feed one 2 pellets every day. Feed one 3 pellets every day. … Measure how massive each goldfish is after 6 months.

4. Data food (pellets/day)mass (g) 16 28 313 415 525 634 752 878 994 10121 After 6 months…

5. Independent Variable ?

6. The independent variable is adjusted by the experimenter.

7. Independent Variable The independent variable is adjusted by the experimenter. Graph the Independent Variable on the X-Axis

8. X-Axis What is the x-axis?  the horizontal (side to side) axis

9. X-Axis What is the x-axis?  the horizontal (side to side) axis

10. What Is the Independent Variable In Our Fish Experiment?

11. The experimenter adjusts how much food each fish gets.

12. Dependent Variable ?

13. The dependent variable changes as a result of what the experimenter does

14. Dependent Variable The dependent variable changes as a result of what the experimenter does Graph the Dependent Variable on the Y-Axis

15. Y-Axis What is the y-axis?  the vertical (up and down) axis

16. Y-Axis What is the y-axis?  the vertical (up and down) axis

17. What Is the Dependent Variable In Our Fish Experiment?

18. Mass changes as a result of how much food each fish gets.

19. Graph It! Ingredients: Meaningful Title Labeled Axis Units in Parentheses White Background No Gridlines

20. Notes:

21. Your Turn Make the goldfish graph on a computer with a partner.

22. Log In Press: Control-Alt-Delete Username: physics Password: success

23. Open Excel Click: start Go to: Programs Open: Microsoft Excel

24. Enter Your Data Row 1: Names Row 2: Date Row 3: Blank Row 4: Headings Row… : Data

25. Graph the Data Click on the chart wizard

26. Select the Chart Type XY (Scatter)

27. Add a New Series Click to select your x values. Click to select your y values.

28. Click on the cell with your first x value with the left mouse button. Hold the mouse button down and drag it down to your last x value. Release the mouse button. Click on the to go back. Select Your X Values

29. Click on the cell with your first y value with the left mouse button. Hold the mouse button down and drag it down to your last y value. Release the mouse button. Click on the to go back. Select Your Y Values

30. Enter Titles Meaningful Title Independent Variable (Units) Dependent Variable (Units)

31. Remove Gridlines Never use gridlines. Uncheck: Major gridlines

32. Remove the Legend Only use a legend if you are plotting multiple data sets on one graph. Uncheck: Show legend

33. Chart Location Charts look best on their own sheet. Meaningful Title

34. Change the Background Gray is ugly and it wastes ink. We use white backgrounds. Double click on the gray background.

35. Remove the Gray Background Gray is ugly and it wastes ink. We use white backgrounds. Click on Area: None

37. Save Save on your floppy disk or it will be lost forever.

38. Your Turn Enter your data for the heights and stopping distances you measured yesterday.

39. Save Save on your floppy disk or it will be lost forever.