1. Introduction to Chemistry and the Scientific Method

2. Chemistry The study of the composition of matter
What is stuff made of ????
Different branches of Chemistry
Organic Chemistry
Inorganic Chemistry
Analytical Chemistry
Physical Chemistry
Biochemistry

3. The Scientific Method Observation Hypothesis Test the Hypothesis
Collect Data
Qualitative
Quantitative
Conclusion

4. The Experiment
Hypothesis: A proposed explanation or reason for an observation
Must be testable

5. Testable/ Non Testable
Tomato plants like the sun
Sunlight increases the height of tomato plants

6. Experimental Controls
Control Group
Experimental Group
What is the difference between the Control and Experimental Groups?

7. Experimental Controls
Control Group: All factors in this group remain unchanged
Experimental Group: Only one factor is changed in this group

8. Variables
Independent Variable
Dependent Variable

9. Variables
Independent Variable: The factor that is controlled and changed by the scientist (Example- Sun exposure)
Dependent Variable: The factor that is affected by the independent variable
(Example - plant height)

10. IN YOUR Journal: Create a hypothesis State the Independent Variable
State the Dependent Variable

11. Conclusion The Outcome of the experiment Was the hypothesis correct?
Can a scientist make a sound conclusion based on the results of 1 experiment?

12. Theory
A broad and extensively tested explanation for a particular question
It can not be proven as a law because it is possible that a new experiment will disprove it.

13. Scientific Law
A statement that summarizes the results of many observations and experiments.
Example:
The Law of Universal Gravitation

14. Bubbles Lab