1. Lecture 1: Intro to Plants, Intro to Science

2. Why do we love plants? Plants are:

3. People and Plants l We affect each other. – how? »We can’t live without them! »They exchange CO 2 for O 2 – mitigates greenhouse effect.

4. Plants are sources l of food l of paper l of fibers l of medicines

5. Life without l chocolatesugar l vanillacinnamon l peppermahogany l cherry woodebony l cottonlinen l rosesorchids l paperoxygen l aesthetics

6. l The word science is derived from a Latin verb meaning “to know” l Science developed from our curiosity about ourselves and the world around us THE PROCESS OF SCIENCE

7. The Process of Science: "The Scientific Method"

8. What’s a Scientific Question? l Scientific Questions are….

9. What’s a Hypothesis? l Tentative, but untested explanations l Make predictions that can be tested

10. How do you test a Hypothesis? lVia controlled experiments or pertinent observations lKinds of variables:

11. Experiments of classica l design l Individuals studied divided into two groups » Experimental group » Control group

12. How does science really work in today’s world? l Exhaustive literature search + observations   hypothesis l Prediction l Write a proposal, design experiment l Get money $$$$$ l Revise proposal based on $$$ l Experiment/collect data l Statistics l Write manuscript of results l Publish or perish

13. FactLAW l A fact leads to a law, eventually. l What is a law? Observation

14. l What happens if all of our experiments fail to negate our hypothesis? l What if workers in other parts of the community, county, state, country, or world also fail to negate your hypothesis?

15. Theory l Definition: Observations Hypothesis LAW Experimentation Theory

16. Finished? l How long do theories last?

17. To Prove or Not to Prove l Experimentation can either support or reject a hypothesis. l Experimentation can never prove a hypothesis 100% correct. – why? l After each each experiment we need to re- evaluate our results and observations to either make changes in our hypothesis or more likely design a new experiment.