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1.3 Communication in Science

1.3 Communication in Science. Biblical Reference. He measured its wall and it was 144 cubits thick, by man's measurement, which the angel was using. Revelation 21:17. Communicating Results. One important goal of science is to make results available to others .

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1.3 Communication in Science

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  1. 1.3 Communication in Science

  2. Biblical Reference He measured its wall and it was 144 cubits thick, by man's measurement, which the angel was using. Revelation 21:17

  3. Communicating Results • One important goal of science is to make results available to others. • Communicating scientific data and results allows others to learn of new discoveries, to possibly verify what has been reported, and to conduct new experiments using the information.

  4. Lab Reports • Throughout your science courses, you will conduct many experiments and activities. • During and after each activity or experiment, you will record and analyze the information that you collected to draw conclusions based on your data. • The resulting lab report will be used to assess your understanding of the activity or experiment and to communicate your results.

  5. Scientific Journals & Magazines • From “Science World” to “The Journal of American Medicine”, there are hundreds of scientific journals and magazines geared toward any age group and/or education level.

  6. The Internet The internet is a wonderful way to access scientific information, but because it is easy for anyone to post information on the internet, you must always make sure that “scientific” information comes from a reputable source.

  7. Textbooks • Textbooks contain a wealth of scientific information usually compiled into specific topics: Biology, Chemistry, Physics, Earth Science, Botany, Anatomy, etc. • Textbooks are re-issued every few years to update information based upon new discoveries and technology.

  8. Graphs • There are many different types of graphs, which each serve different purposes. • A line graph is a visual display that shows how two variables are related. • The independent variable is plotted on the horizontal (x) axis. • The dependent variable is plotted on the vertical (y) axis. y axis x axis

  9. Models • A scientific model is an idea, a system, or a mathematical expression that is similar to the idea being explained. • While a model might not have all of the components of a given idea, it should be a fairly accurate representation. • Models can change when more data is gathered.

  10. Hypothesis • A hypothesis is a possible explanation or answer to a question. • A good hypothesis is a testable idea that leads to scientific investigation.

  11. Hypothesis: Meteorite Impact • A huge meteorite crashed into the earth 65 MYA. Dust from the impact blocked out the sun and led to the extinction of the dinosaurs. • The meteorite is estimated to have been 10 km in diameter.

  12. Theory • A scientific theory is an explanation based on many observations during repeated experiments. • A scientific theory is valid only if it is consistent with observations, makes predictions that can be tested, and is the simplest explanation of observations. • A theory can be changed or modified with the discovery of new data.

  13. Theory: The Big Bang • A description of how the universe began: “Billions of years ago, all the matter and energy in the universe was compressed into an extremely small volume. Then about 17 billion years ago, a sudden event sent all the matter and energy hurtling outward in a giant cloud. As the cloud expanded, some of the matter gathered into a clumps that evolved into galaxies.”

  14. Supporting Evidence • Light Effect: • Spectrum of Light • Wavelength • Heating elements makes them give off a Bright-Line Spectrum. • Doppler Effect: • Close objects - short wavelengths • Distant objects - long wavelengths • Spectroscope:RED SHIFT • Tells what elements are in different stars. • Can also tell how far away stars are and if they are moving farther away. • Background Radiation: • Low levels of energy distributed throughout the galaxy.

  15. Law • A scientific law describes a pattern or an event in nature that is always true. • One example is the Law of Gravity.

  16. Pop Quiz Match the following terms with their definitions. ___ theory ___ model ___ law C A B A. an idea, a system, or mathematical expression that is similar to the idea being explained B.a basic fact that describes the behavior of a natural phenomenon C.an explanation based on many observations during repeated experiment

  17. Pop Quiz On a line graph, what is plotted on the horizontal (x) axis? The independent variable is plotted on the horizontal (x) axis.

  18. Pop Quiz On a line graph, what is plotted on the vertical (y) axis? The dependent variable is plotted on the vertical (y) axis.

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