Febuary 2, 2011Today...There were no notesWe reviewed the worksheetsTest tomarrow!!!!!HomeworkVocab Ch 2 Due fridayRead Ch 2.1 on page 34 #1-5Active reading due FridayOutline on Ch 2VocabObservation- The process of obtaining information by using the sences. On page 33.
Hypthesis- Testable idea or explanation that leads to scientific investigation. Page 34.
Prediction- This is a statement made in advance that expresses the results that will be obtained from testing a hypothesis, and if the hypothesis is supported; the expected outcome if a hypothesis is accurate. Found on page 34.
Experiment- Procedure that is carried out under controlled conditions to discover, demonstrate, or test a fact, theory, or general truth. On page 35.
Variable- A factor that changes in an experiment in order to test a hypothesis. Page 35.
Experimental group- In an experiment, a group that is identical to a control group except for one factor and that is compared with the control group. On page 35.
Control group- In an experiment, a group that serves as a standard of comparison with another group to which the control group is identical exept for one factor. This is found on page 35.
Data- Any pieces of information acquired through observation or experimentation. This can be found on page 36.
Correlations- The linear dependence between two variables.
Statistics- The collection and classification of data that are in the form of numbers. On page 40.
Mean- The number obtained by adding up the data for a given characteristic and dividing this sum by the number of individuals. On page 41.
Distribution- Relative arrangement of the members of a statistical population; usually shown in a graph. This is found on page 41.
Probability- The likeihood that an event will occur in any given instance of an event. On page 42.
Sample- The group of individuals or events selected to represent a statisical population. This is on page 42.
Risk- The probability that an unwanted event will occur. On page 43.
Model- A pattern, Plan, representation, or description designed to show the structure or workings of an object, system, or concept. This is on page 44.
Conceptual model- A verbal or graphical explanation for how a system works or is organized.
Mathematical model- One or more equations that represent the ay a system or process works. On page 46.
Values- A principle or standard that an individual considers to be important. On page 47.
Decision-making model- A conceptual model that provides a systematic process for making decisions. Found on page 47.
Homework1) Describe the steps of the experimental method.
2) Name three scientific habits of the mind and explain their importance.
3) Explain why a hypothesis is not just a guess.
4) Explain how scientists try to answer questions that cannot be tested with experiments.
5) Describe the two essentail parts of a good experiment, and explain their importance.
Ch 2 Tools of Environmental ScienceI Scientific Methods
A) The Experimental Method
1) Observing
2) Hypothesizing and Perdicting
3) Experimenting
4) Organizing and Analyzing Data
5) Drawing Conclusions
6) Repeating Exerriments
7) Communicating Results
B) The Correltion Method
C) Scientific Habits of Mind
1) Curiosity
2) The Habit of Skepticism
3) Openness to New Ideas
4) Intellectual Honesty
5) Imagination and Creativity
II) Statistics and Models
A) How Scientists Use Statistics
1) Statistics Works with Populations
2) What Is the Average
3) The Distribution
4) What Is the Probability
B) Statistics in Everyday Life
1) Understanding the News
2) Thinking About Risk
C) Models
1) Physical Models
2) Graphical Models
3) Conceptual Models
4) Mathmatical Models
III) Making Informed Decisions
A) An Environmental Decision-Making Model
B) A Hypothetical Situation
C) How To Use The Decision-Making Model
1) Gather Information
2) Consider Values
3) Explore Consequences
4) Make A Decision