Biology Ch 1

1. BIOLOGY <ul><li>The Study of Life </li></ul><ul><li>Bio = Life </li></ul><ul><li>Logy = Study of…
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  • 1. BIOLOGY <ul><li>The Study of Life </li></ul><ul><li>Bio = Life </li></ul><ul><li>Logy = Study of </li></ul>
  • 2. Organism <ul><li>Anything that possesses all of the characteristics of life. </li></ul>
  • 3. Section 1.1 Summary – pages 3-10 All living things: <ul><li>have an orderly structure (made of cells) </li></ul><ul><li>produce offspring </li></ul><ul><li>grow and develop </li></ul><ul><li>adjust to changes in the environment (Adapt) </li></ul>Characteristics of Living Things
  • 4. Species <ul><li>A group of organisms that can interbreed and produce fertile offspring in nature. </li></ul>
  • 5. Hypothesis Vs. Theory <ul><li>Hypothesis : An explanation for a problem that can be tested by experimentation. </li></ul><ul><li>(An educated guess, what you think will happen) </li></ul><ul><li>Theory : Has been tested repeatedly by experimentation and has been proven to be true. </li></ul>
  • 6. Theory <ul><li>Can a theory ever be proven wrong?? </li></ul><ul><li>YES </li></ul>
  • 7. Scientific Method <ul><li>Steps used to gather information and solve problems. </li></ul>
  • 8. 7 Steps <ul><li>1. Observe a problem. </li></ul><ul><li>2. Collect information </li></ul><ul><li>3. Develop a hypothesis. </li></ul><ul><li>4. Experiment </li></ul><ul><li>5. Collect and analyze data </li></ul><ul><li>6. Form a conclusion. </li></ul><ul><li>7. Repeat to verify </li></ul>
  • 9. Parts of an Experiment <ul><li>Experimental Set-up : The part of the experiment that contains the variable tested. </li></ul><ul><li>Control Set-up : The part of the experiment that does NOT contain the variable (used as a comparison) </li></ul>
  • 10. Parts of an Experiment cont… <ul><li>Independent Variable: The CAUSE. What I change about the experiment. Usually time when graphed. Located on the X axis. </li></ul><ul><li>Dependent Variable: The EFFECT. What you count, measure or observe. Located on the y axis. </li></ul>
  • 11. Parts of an experiment Cont… <ul><li>Constants: The parts of an experiment that are kept the same in both the contol set-up and experimental set-up. </li></ul>
  • 12. Types of Information <ul><li>Qualitative : Does not use numbers. Usually based on observation. </li></ul><ul><li>Quantitative : Uses numbers. What is counted or measured. </li></ul>
  • 13. International System of Measurements. (SI units) SI Base Units Measurement Unit Symbol Length meter m Mass kilogram kg Time second s Temperature Celsius c Volume (liquid) Liter l Cubic centimeter Volume (solid) cc
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