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What is Science?

What is Science?. Review This slide show will present a question, followed by a slide with an acceptable answer. For some questions, there is a definite correct answer. For other questions, several answers may be correct. . What is SCIENCE?.

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What is Science?

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  1. What is Science? Review This slide show will present a question, followed by a slide with an acceptable answer. For some questions, there is a definite correct answer. For other questions, several answers may be correct.

  2. What is SCIENCE? There are several correct answers to this question; list as many as you can.

  3. What is SCIENCE? • A way to answer questions & solve problems • How we understand the world around us • A way or process used to investigate what is happening around you • It provides possible answers

  4. We answer scientific questions & solve problems with 2 types of research. What are the two types?

  5. We answer scientific questions and solve problems with 2 types of research. What are the two types? • Descriptive Research • Experimental Research

  6. Describe DESCRIPTIVE RESEARCH

  7. Describe DESCRIPTIVE RESEARCH • Based mainly on Observations • Used when experiments are impossible to perform • Involves the following: • Stating the research objective • Describing the research design • Eliminating bias

  8. Describe EXPERIMENTAL RESEARCH

  9. Describe EXPERIMENTAL RESEARCH Experimental research includes investigations that: • Have variables • Test hypotheses • May have a control or control group • Is a set of planned steps • Tests one variable at a time

  10. Describe VARIABLE

  11. Describe VARIABLE A part of an investigation that can be CHANGED

  12. List the 3 TYPES OF VARIABLES

  13. List the 3 TYPES OF VARIABLES • Independent Variable • Dependent Variable • Controlled Variable

  14. ExplainINDEPENDENT VARIABLE

  15. ExplainINDEPENDENT VARIABLE • The variable that can be changed during an experiment • The variable that the scientists chooses to change • The variable that may cause a change in the dependent variable

  16. ExplainDEPENDENT VARIABLE

  17. ExplainDEPENDENT VARIABLE • The factor that is being measured in an experiment • The variable that is measured by scientists • The variable that may change because of the independent variable

  18. ExplainCONTROLLED VARIABLE(CONSTANT)

  19. ExplainCONTROLLED VARIABLE(CONSTANT) • Variable that stays the same during an experiment • Variable that is controlled by the scientist • Variable that is not allowed to change

  20. What is the difference between Science and Technology?

  21. What is the difference between Science and Technology? Technology is the application of science; Science gaining knowledge Technology  using knowledge

  22. How do scientists OBSERVE?

  23. How do scientists OBSERVE? • Using the 5 senses: • Hearing • Touch • Smell • Sight • Taste

  24. Explain how to RECORD DATA

  25. Explain how to RECORD DATA Data Tables • A way to record results and observations accurately • Have a descriptive title • Divided into columns & rows • Shows the independent variable • Provides a place to record the dependent variable

  26. How do scientists COMMUNICATE the results of their work?

  27. How do scientists COMMUNICATE the results of their work? • Reported in scientific journals • Science journals • Presentations to other scientists

  28. Describe how to ANALYZE DATA

  29. Describe how to ANALYZE DATA • Reduce the data with the best measure of central tendency • Graph the data • Look for patterns and relations • Look at the shape of the graph

  30. What do scientists do when they DRAW CONCLUSIONS?

  31. What do scientists do when they DRAW CONCLUSIONS? • Answer the original question • State whether or not the hypothesis was supported (it is never “right” or “wrong”) • Pose questions for further research

  32. Define HYPOTHESIS

  33. Define HYPOTHESIS • A statement that can be tested by conducting an experiment • Prior knowledge, new information, observations can be used to form a hypothesis

  34. Why are REPEATED TRIALS necessary in an experiment?

  35. Why are REPEATED TRIALS necessary in an experiment? • To make sure results are valid • The more trials conducted, the more likely the results are reliable • To make sure a “fluke” is not considered the true result

  36. Why do scientists use MODELS?

  37. Why do scientists use MODELS? To save time and money when testing ideas that are • Very large • Very small • Dangerous • Time-consuming

  38. When are GOGGLES required?

  39. When are GOGGLES required? When using • Chemicals • Heat • Sharp objects

  40. Explain the Science Department Late Work Policy

  41. Explain the Science Department Late Work Policy No late work is accepted.

  42. What is the PROCEDURE for the Start of Class?

  43. What is the PROCEDURE for the Start of Class? • Come into the room and sit in your assigned seat. • Read the AGENDA and copy assignments into your agenda. The agenda is located on the bulletin board to the right of the door. • Read the instructions of the television / overhead projector and follow the directions.

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