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Physical Science

Physical Science. Chapter 1. Explain technology. Explain technology. The use of knowledge to solve practical problems. Cell phones are technology. How so?. Name and explain the branches of science. List examples of each type. Name and explain the branches of science.

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Physical Science

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  1. Physical Science Chapter 1

  2. Explain technology.

  3. Explain technology. • The use of knowledge to solve practical problems. • Cell phones are technology. How so?

  4. Name and explain the branches of science. List examples of each type.

  5. Name and explain the branches of science. • Chemistry: study of matter. • Physics: study of the interactions between matter and energy. • Geology: study of Earth. • Astronomy: study of the universe beyond Earth. • Biology: study of living things.

  6. List examples of each type. • Chemistry: Anti-freeze in a car (lower freezing point than water), toast (oxidized the surface of the bread), synthetic fabrics • Physics: getting ketchup out of the bottle (inertia), seatbelts in cars, using a hammer • Geology: “Diamonds are a girls best friend!” • Astronomy: Orion’s Belt • Biology: YOU!

  7. List (in order) the steps to the scientific method.

  8. List (in order) the steps to the scientific method. • Make observation • Ask question • Develop hypothesis • Test hypothesis • Analyze Data/Draw Conclusions • Develop Theory

  9. What is the goal of the scientific method?

  10. What is the goal of the scientific method? • Solve a problem or better understand something.

  11. What happens if the conclusion does not support the hypothesis?

  12. What happens if the conclusion does not support the hypothesis? • Revise the hypothesis or decide on another one.

  13. Explain scientific theories.

  14. Explain scientific theories. • The explanation for something.

  15. Explain scientific laws.

  16. Explain scientific laws. • A summary of an observation. • What is the difference between law and theory?

  17. Practice scientific notation.

  18. Practice scientific notation. • Positive exponent = moving to the right • Negative exponent = moving to the left • Multiplication: Multiply numbers and add exponents • Division: Divide numbers and subtract exponents

  19. Explain the difference between precision and accuracy.

  20. Explain the difference between precision and accuracy. • Video

  21. List the types of graphs.

  22. List the types of graphs. • Line Graphs • Bar Graphs • Circle Graphs

  23. Explain how each type of graph type is used.

  24. Explain how each type of graph type is used. • Line Graphs • 1 variable • Bar Graphs • Comparisons • Circle Graphs • Parts of a whole

  25. What is peer review?

  26. What is peer review? • One scientist looks at the work of another scientist.

  27. When a scientist completes an experiment, how does he/she share the findings with others?

  28. When a scientist completes an experiment, how does he/she share the findings with others? • Writing in scientific journals. • Speaking at a conference.

  29. List the SI base units.

  30. List the SI base units. • CHART ON PAGE 16 • Meter (m) • Kilogram (kg) • Kelvin (K) • Second (s) • Mole (mol) • Ampere (A) • Candela (cd)

  31. What are the base units used to measure?

  32. What are the base units used to measure? • Meter (m): length • Kilogram (kg): mass • Kelvin (K): temperature • Second (s): time • Mole (mol): amount of a substance • Ampere (A): electric current • Candela (cd): luminous intensity

  33. What must ALL measurements include?

  34. What must ALL measurements include?

  35. Explain technology.

  36. Explain technology. • The use of knowledge to solve practical problems.

  37. What is the manipulating variable?

  38. What is the manipulating variable? • The variable that causes a change in another variable.

  39. What is the responding variable?

  40. What is the responding variable? • The variable that changes in response to the manipulated variable.

  41. What is a control group?

  42. What is a control group? • The variables that are kept the same during an experiment.

  43. What is a constant?

  44. What is a constant? • The variable that is kept the same during an experiment.

  45. What is the purpose of using models? List 5 examples of models.

  46. What is the purpose of using models? List 5 examples of models. • They make it easier to observe things that might be too difficult to observe directly. • Globe • DNA Strand • Human/Plant Cell • Erupting Volcano • Plastic Skeleton

  47. How are technology and science related?

  48. How are technology and science related? • Science is the system of knowledge. • Technology is the use of knowledge.

  49. (4.7x10(^4) ) x (10.9x10(^2) ) =

  50. (3.1 x10-2) x (6.0 x 10-4) =

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