1. Analyzing Biological Data Section 1.4: Tools and Procedures Teacher: Mrs. Rolle Presenter: Mevan Siriwardane September 20, 2007

2. Ways to Organize Data  Tables  Data (numbers) organized into rows and columns  Graphs  Data arranged to study any relationships or patterns  Tables  Data (numbers) organized into rows and columns  Graphs  Data arranged to study any relationships or patterns Time (days) Plant Height (cm) Water Uptake (mL) 17.251.5 48.752.8 711.504.3 1015.358.5

3. Types of Graphs  Bar Graph  Line Graph  Circle (Pie) Graph  Bar Graph  Line Graph  Circle (Pie) Graph

4. Bar Graph Time (days) Plant Height (cm) Water Uptake (mL) 17.251.5 48.752.8 711.504.3 1015.358.5 a) Table b) Bar Graph Independent Variable Dependent Variable

5. Line Graph Time (Days) Spinach Plant Height (cm) Radish Plant Height (cm) 14.357.25 46.258.75 79.5011.50 1012.7515.35

6. Circle Graph  Circle (Pie) Graph  Parts add to a whole like “pieces” add to a “pie”  Individual percentages add to 100%  Circle (Pie) Graph  Parts add to a whole like “pieces” add to a “pie”  Individual percentages add to 100%