1. Th 08/29 F 08/30 Journal #1 What are the characteristics of Living Organisms?

2. Made of Cells Organized Reproduce Grow and Develop Use energy Respond and adjust to a stimulus Homeostasis

3. Check question Are viruses considered living?

4. The Methods of Biology

5. The Scientific Method 1.Observation 2.Hypothesis 3.Design an Experiment 4.Collect Data 5.Conclusion 6.Present the Results

6. Hypothesis An explanation for a question or a problem that can be tested. It is NOT a random guess!!! Question: How does sunlight affect plant growth? Example Hypothesis: An increase in sunlight will improve plant growth.

7. Experiment Collecting information under controlled conditions Control: part of an experiment that is a standard against which results are compared. –Receives no experimental treatment. –Plant #1 Receives the regular 9 hours of sunlight in the greenhouse

8. Independent Variable: the condition that is tested (controlled change by the scientist) –Amount of Sunlight will be changed –All other conditions must remain the same Dependent variable: the condition that the changed factor effects –Plant growth (height)

9. Collect Data Quantitative Data: numerical –Measurements of time, temperature, height, mass, area, etc. Qualitative Data: descriptions –Examples: wilted or turgid, healthy or dying

10. Conclusion Was the hypothesis supported by the results of the experiment? Is more data needed? –Experiment need to be repeated several times with similar results –Experiments need to be reviewed by other scientists

11. Journal #2: List the Steps of the Scientific Method

12. Identify the… Control Group Independent Variable- condition that is tested Dependent Variable- the condition that changed Mr. Jones thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Mr. Jones counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.

13. Identify the… Control Group: Group B Independent Variable: Juice Dependent Variable: Amount of Stacks of paper Mr. Jones thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Mr. Jones counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.

14. Reporting Results Results and conclusions of scientific experiments are reported in scientific journals. This sharing of information allows other scientists to verify results as well as relate the information to their own work.

15. Theories Theory: An explanation of a natural phenomenon that is supported by a large amount of scientific evidence Law: statements that describe, predict, and sometimes explain why an aspect of the world behaves as it does. They are based on many different experiments and a vast range of data.

16. Next: Scientific Methods Lab Over the 3 day weekend… Study, Study, Study!!!!