Scientific Method

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Scientific Method
2012-06-22 12:55:37
Unit Scientific Method

Unit 1 Scientific Method
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  1. observing
    Using one or more of your 5 senses to gather information about the world
  2. 5 senses
    see, hear, taste, smell, feel
  3. Examples of observations
    dog bark, smelling smoke, counting 12 green seeds
  4. data
    information collected through observations; evidence
  5. infer
    interpret an observation
  6. examples of inferences
    dog barks, you infer someone is at the door; baby cries- hungry, wet, hurt
  7. classify
    put things together in groups based on characteristic that they share to make it easier to study
  8. how do we classify shapes
    size, shape, color, how it's used
  9. model
    smaller version of an object.  makes it easier for scientists to study.
  10. examples of models
    drawings, physical models
  11. why do scientists communicate with eachother?
    • share results
    • share information
    • share opinions
  12. what is science inquiry?
    it is thinking like a scientist:  being inquisitive, asking why, and searching for answers
  13. What is the standard system of measurement used by scientists around the world?
    International System of Units or SI
  14. why are si units easy to use
    they are based on units of 10
  15. What do scientists use to measure length?
    meter (m)
  16. What two instruments are used by scientists to measure length?
    metric rulers and meter sticks
  17. What are some common SI prefixes?
    • kilo- k
    • hecto-h
    • deka-da
    • deci- d
    • centi- c
    • milli- m
  18. What is the volume of a liquid?
    the amount fo space the liquid takes up
  19. What is the unit of measure scientists use to measure liquid volume?
    Liter (L)
  20. What instrument is used to measure liquid volume?
    graduated cylinder
  21. mass
     the amount of matter in an object (or weight)

    a balance is used to measure mass
  22. gram
    unit of measure used to measure mass
  23. Larger masses are measured in. . .
    Kilograms (kg)
  24. Celcius
    used to measure the temperature of something
  25. water freezes at
    0 Celcius
  26. water boils at. . .
    100 Celcius
  27. unit used to measure time. . .
  28. how do scientists share the data they gather?
    • data table
    • pictures
    • diagrams
    • models
    • graphs
  29. Steps to a scientific investigation:
    • 1.  pose a question
    • 2. create a hypothesis
    • 3. materials
    • 4. procedure
    • 5. observations
    • 6. results
    • 7. conclusion
  30. the factor that you change in an experiment is called...
    independent or manipulated variable
  31. the factor that chages the result of the independent variable
    responding or dependent variable
  32. controlled experiment
    an experiment in which all factors except for one are kept constant
  33. operational definition
    a statement that describes how a particular variable is to be measured or how a term is to be defined.
  34. data
    the observations and measurements you make in an experiment
  35. conclusion
    a statement that sums up what you have learned from an experiment.
  36. Where do scientists record their measurements and data
    data table
  37. bar graph
    used to display data in a number of separate, or distinct, categories
  38. line graph
    used to show how one variable (responding variable) changes in response to another variable (control)
  39. a graph or chart that shows a category compared to 100%
    • pie chart
    • circle graph
  40. A question or purpose to guide your activity
    problem, question, or objective
  41. The background information to help answer the problem question
  42. an educated guess written as an if. . . then statement
  43. list of items used ot conduct experiment
  44. sequential list of the steps to complete experiment
  45. details about what is observed during the lab using your five senses.  recorded in tables, graphs, diagrams
  46. a summary of data collected based on facts, not opinions.  an interpretation of the data
  47. An answer to the problem question based on data collected and applied to real life situations.  Flaws in experiment are explained.