• Like
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.


Ch 2 ecology notes

Ch 2 ecology notes

Published in Education
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On SlideShare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. Methods of Science 2.1/2.2 Science is the study of nature- it involves researching, and trying to explain our natural world
    • _____________ ( made directly or with tools like_____)
    • State the problem
    • Research- find out what other know about the problem
    • Hypothesis ( possible explanation for a set of observations)
    • _______________________
  • 2. Experiments
    • Designed to test hypothesis
    • Must be repeatable
    • Should only test 1 variable ( any factor that affects the outcome of an experiment) at a time
    • Often has 2 groups- a control group and a experimental group
    • - control group- have all factors
    • - experimental group- one of the variables is purposefully changed to see what happens
    • variable being tested is called the independent variable; the variable that changes as a result of the independent variable is called the dependent variable
  • 3. Collecting, Analyzing and Organizing Data
    • Once data has been acquired scientists try to analyze it
    • They can organize the data into graphs, charts, tables; dependent variable is on y -axis, independent variable is on x -axis
    • Scientists then share their work and results with others- communicating by publishing in periodicals, presenting papers etc.
  • 4. Theory
    • is an explanation
    • explains many pieces of data and predicts
    • can be, and often is modified as new info is found
    • can _________________
    Activity- look at list of criteria for science Examine a scientific periodical, a newspaper, and a tabloid article. What criteria of science do they Meet and don’t meet.
  • 5. Hypothesis and Theories
    • Must be testable
    • If later observations do not fit the hypothesis, then you change it
    • Science is never 100% certain- it is based on the data we have at hand- new data can be discovered, new instruments made so we get new data; scientists have many times altered, thrown out, or confirmed their ideas about how things work
  • 6. Science & Society Science finds out information ; it does not decide on the value of that information, or how it is used
  • 7. 2.3 Environmental Science Our surroundings is called the _______________ Environmental Science is the study of our Surroundings and the interactions that occur with it. Env. Sci is an integrated science- uses many other fields of science such as 1.__________________ 2._________________ 3._________________
  • 8.
    • Types of scientists
    • hydrologist _____________________
    • oceanographer _____________________
    • Meteorologist _____________________
    • Climatologist _____________________
    • Geologist ______________________
    • Seismologist _____________________
    • Biologist ______________________
    • Ecologist ______________________
  • 9.
    • Paleontologist ______________________
    • Anthropologist ______________________
    2 Main Factors in the Environment 1._________- nonliving factors 2._________- living factors There is constant interaction between and among these factors
  • 10. Ecology and Environmental Science
    • Ecology is the study of the environment- regardless of human society
    • Environmental science studies how humans affect the ecology of a system
    • 1 st semester- ecology
    • 2 nd semester is environmental science- deals more with human interactions with the environment
  • 11. Interactions
    • The interaction of biotic and abiotic factors play a central role in ecology- sometimes we study the interactions between the living and non-living parts; sometimes we study the interactions between the biotic factors- read pg 28 about the interactions between the coyotes, deer, wolves and mountain lions in Arizona.