GGH1503 SUMMARY NOTES CHAPTER 2

Science, Matter, Energy, and Systems

Chapter 2

,Core Case Study: Carrying Out a
Controlled Scientific Experiment

 F. Herbert Bormann, Gene Likens, et al.:
Hubbard Brook Experimental Forest in NH (U.S.)

 Compared the loss of water and nutrients from
an uncut forest (control site) with one that had
been stripped (experimental site)

,2-1 What Is Science?
 Concept 2-1 Scientists collect data and develop
theories, models, and laws about how nature
works.

, Science Is a Search for Order
in Nature (1)

 Identify a problem
 Find out what is known about the problem
 Ask a question to be investigated
 Gather data
 Hypothesize
 Make testable predictions
 Keep testing and making observations
 Accept or reject the hypothesis