1. Scientific Method & Processing Skills

2. Observation Using your senses to study the world

3. Problem Statement Question that scientists are wanting to answer with an experiment. Helpful hints when writing a problem statement: – Must be in question form – Must include IV and

4. Hypothesis Proposed answer to a scientific question. Hypothesis Must Haves: – Testable and Specific – Take If.. IV then …DV

5. Practice writing Hypothesis

6. Experiment Testing the hypothesis Must be repeated Include independent and dependent variables. – Only one variable tested(keep constants)

7. Independent Variable Condition that is manipulated, or changed, by a scientist

8. Dependent Variable Observed and measured during an experiment.

9. Constant Conditions that do not change during an experiment.

10. PRACTICE

11. Identify the Independent and Dependent Variables 1.What effect does food color have on the amount of food fish eat? IV= DV=

12. 2. What effect does light have on plant growth? IV= DV=

13. 3. What effect does smiling have on the teacher giving no homework? IV= DV=

14. 4. How does the amount of water effect plant growth? IV= DV=

15. 5. How does the number of leaves on a tree effect the number of bird nests in the tree? IV= DV=

16. Valid Experiments Two groups are required: – Control – standard for comparison – Experimental – group that receives the independent variable

17. Observations can be recorded as DATA Qualitative : include sights, sounds and smells. Reports what happens Quantitative: can be measured or counted. EX: mass, volume, temperature. Explore how something happens

18. DATA Must be organized into charts, tables, or graphs

19. Communication/Conclusion Answer to the hypothesis based on data obtained in experiment. Scientist shares the analysis of data and experiment. Other scientist review experiment