1. TOPIC: Scientific Method AIM: How can we organize data collected from an experiment? DO NOW: Does the price of sneakers affect how high a person can jump? a.IV = b. DV = c. 2 constants =

2. GRAPH Visual display of info Organize data to be easily understood

3. 3 TYPES: 1.Bar Graph Compares info

4. 2. Circle Graph (Pie Chart) Compares parts of a whole

5. 3. Line Graph Data changes over time Relationship between variables

6. DV IV

7. How to set up your line graph: 1. Label axis with units. 2. Set up scale/intervals on each axis Evenly space out numbers in equal increments (by 1’s, 2’s, 5’s, etc.) Pick one increment and stick with it! Line up numbers on lines, not spaces.

8. 3. Plot points. 4.Connect 5. Create title.

9. Title: Should compare IV to DV The Effect of IV on DV The effect of distance on light intensity

10. The Effect of Temperature on Pressure

11. The Effect of Weight on Flight Time

12. TYPES OF RELATIONSHIPS: 1.Direct: As one variable increases, the other increases

13. 2. Indirect/inverse: As one variable increases, the other decreases.

15. Identify the relationships in the following graphs and state the independent and dependent variables.

16. 20406080100120140160180200 IV = ? Water depth DV = ? temperature Title = ? The effect of water depth on temperature

17. 20406080100120140160180200 What is the temperature of the water at 170°C? 4.6°C How deep is the water when it is at a temperature of 17°C? 60°C

18. A student counted the total number of leaves in a group of duckweed plants over a 5-day period. The data collected is shown in the table. Using the information in the data table, construct a line graph on the grid below.

19. 123 45 10 20 30 40 50 60 70 80 Type of relationship? Direct IV = ?time DV = ? Number of leaves

20. The rate of respiration of a freshwater sunfish was determined at different temperatures. The rate of respiration was determined by counting the number of times the gill covers of the fish opened and closed during 1-minute intervals at the various temperatures. The following data were collected. Using the information in the data table, construct a line graph on the grid below.

21. Temp. (ºC) 2 4681012 14 16182022242628 10 20 30 40 50 60 1. According to the data, as the temperature increases, the rate of respiration of the sunfish a.increases steadily b. decreases steadily c. increases, then decreases d. decreases, then increases 2. Which title is appropriate for this graph? a. The Effect of Temperature on Rate of Respiration in Sunfish b. The Effect of Gill Movement on Rate of Respiration in Sunfish c. The Relationship Between Temperature and Dissolved Oxygen d. The Relationship Between Sunfish Population and Temperature Change in Freshwater Habitats