Mr. Halpern's Science
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Today's Class

9/15/2009

0 Comments

 
Aim-  We will review the scientific method by reviewing
the stps and then putting the method to use and discussing
percent of error.

Standard 4-  Science Concepts

Review-  Scientific method is a way of solving problems
 identify the problem
 gather information
 form a hypothesis
 test the hypothesis
 observe the test 
 gather data
 draw a conclusion

observations are made by using
  eyes, hands, smell, ears, taste (our senses)

hypothesis- an educated guess based on our observations and
  prior knowledge

Test our hypothesis- (experiment)-  things might change
 during the experiment.

  constants-  these are things that stay same
  variables- things that change
   independent variable- changed by
    the person doing the experiment
   Dependent variable- changes because
    of the change in the independent
    variable...

 I light a candle---- The change in the wick of the
  candle is now black and on fire (I made
  that happen) that change is the independent
  variable....  As a result of that change,
  the candle wax is dripping.  It is giving
  off heat and light, it is soft. These are all
  dependent variables.

THE DEPENDENT VARIABLE DEPENDS ON THE INDEPENDENT VARIABLE
    OR IT CAN NOT HAPPEN!!!!!!!!!

What we are trying to test is the independent variable

After an experiment....
 Analyze the experiment to make sure that it was
  accurate.... we do this by conducting
  many trials

 Accuracy is very important if we are going to prove
  something.  We need to use precision (exacts)
  We can not round numbers or guess

Scientific ideas are then taken and a theory is formed

 A lot of people have to look at your ideas and
  try them...... PEER REVIEW (they test
     the accuracy)

If a theory proves to be always correct.... we call it a law!


 
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  • Home
  • Earth Sci Labs
  • 7th Grade ON-LINE TEXTBOOK
  • 7th Grade
    • 7th grade Lab Reports
    • Current events
    • 7th 1- Scientific Theory
    • 7th Lanforms & Maps >
      • Mountain Project
      • Mineral/ Gem Project
    • 7th 3- Geology >
      • Weathering & Erosion
      • Fossil Project
      • Plate Tectonics
      • Earthquakes
      • Unit Test Review
    • 7th Unit 4 Atoms >
      • 7th Atom Brochure
  • Earth Science by topic
  • Submit Homework
  • 8th Grade Units 1-4
    • Unit 1 Models of the Earth >
      • Metric Review
      • Chapter1 Review
      • Chapter 2
      • Topographic Maps
    • Unit 2 Rocks & Minerals >
      • Minerals
      • Rocks
    • Unit 3 Dynamic Crust >
      • Earthquakes
      • Earthquakes & Interior
      • Hot Spots
      • Volcano
      • Dynamic Crust Review >
        • Practice Tests
    • Unit 4 Shaping the Earth's Surface >
      • Weathering
      • chemical weathering
      • Another Weathering video
      • Erosion Videos
      • Glaciers >
        • Glacier Pwr points
      • Changing Earth
      • Unit Review
  • 8th Grade Units 5-9
    • Unit 5 Earth History >
      • Archean History
      • Geological Eras
      • Geologic Sequence Project
      • Unit 5 Review
    • Unit 6 & 7 Climate & Meteorology >
      • 801 Vacation Work
      • Weather Tracking HW Lab
      • Meteorology info
      • Station Models
      • Wind
      • Storms
      • Weather & Climate Review Tests
    • Unit 8 Earth & Space
  • 801 Test Review
  • Ways to pass the regents
  • files
  • Other Important Links
  • New Page