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SCIENTIFIC METHOD #1 : IDENTIFY THE PROBLEM OR ASK A QUESTION BASED ON AN OBSERVATION.

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Presentation on theme: "SCIENTIFIC METHOD #1 : IDENTIFY THE PROBLEM OR ASK A QUESTION BASED ON AN OBSERVATION."— Presentation transcript:

1

2 SCIENTIFIC METHOD

3 #1 : IDENTIFY THE PROBLEM OR ASK A QUESTION BASED ON AN OBSERVATION

4 #2 : COLLECT INFORMATION  RESEARCH LIBRARY, COMPUTER, BOOKS, MAGAZINES

5 #3 : FORM A HYPOTHESIS  MAKE A PREDICTION SUGGEST AN EXPLANATION FOR WHY OR HOW SOMETHING HAPPENS; MUST BE TESTABLE

6 #4 : TEST THE HYPOTHESIS  DESIGN A CONTROLLED EXPERIMENT TEST FOR ONE VARIABLE AT A TIME – COMPARE TWO SETS OF RESULTS, SO THE EFFECT OF THE INDEPENDENT VARIABLE CAN BE SEEN

7 a) INDEPENDENT VARIABLE THE FACTOR WHICH IS CHANGED DURING THE EXPERIMENT

8 b) DEPENDENT VARIABLE MEASURED TO IDENTIFY CHANGES, IF ANY, AS A RESULT OF CHANGES TO INDEPENDENT VARIABLE

9 c) CONSTANT VARIABLE ALL THE FACTORS OR CONDITIONS THAT MUST BE KEPT THE SAME IN AN EXPERIMENT

10 #5 : RECORD AND STUDY DATA  MEASURE USING APPROPRIATE TOOLS METRIC RULER, GRADUATED CYLINDER, BALANCE, THERMOMETER, STOPWATCH, SPRING SCALE, HAND LENS, MICROSCOPE

11 a) MAKE OBSERVATIONS QUALITATIVE : RELATES TO THE FIVE SENSES – COLOR, SHAPE, ODOR, TEXTURE, SOUND, TASTE QUANTITATIVE : CAN BE MEASURED – LENGTH, MASS, VOLUME, TEMPERATURE, DENSITY

12 b) ANALYZE THE RESULTS  COMMUNICATE DATA USING TABLES & GRAPHS SHOW PATTERNS AND RELATIONSHIPS WHICH MAKE REACHING A CONCLUSION EASIER

13 #6 : DRAW CONCLUSIONS STATE WHETHER OR NOT THE RESULTS SUPPORT THE HYPOTHESIS

14 DEVELOP THEORIES DEVELOP THEORIES REPEATED VERIFICATION OVER TIME (BECAUSE OF SIMILAR RESULTS)

15 PREDICTIONS TO FORETELL WHAT IS LIKELY TO HAPPEN BASED ON AN OBSERVATION OR EXPERIMENT STATEMENT MADE IN ADVANCE BASED ON PATTERNS IN DATA OR OBSERVATIONS

16 INFERENCES TO DRAW CONCLUSION BASED ON FACTS OR INFORMATION GAINED FROM AN INQUIRY A LOGICAL INTERPRETATION MADE ON THE BASIS OF FACTS OR PRIOR KNOWLEDGE RATHER THAN ON DIRECT OBSERVATION

17 CONCLUSIONS A DECISION AS TO WHETHER THE HYPOTHESIS WAS CORRECT OR PROVEN BASED UPON THE RESULTS

18 KEY TERMS  WORDS TO KNOW 1. SCIENTIFIC INQUIRY 2. OBSERVATION 3. DATA 4. INFERENCE 5. HYPOTHESIS 6. VARIABLE 7. CONTROLLED EXPERIMENT 8. SCIENTIFIC THEORY

19 SCIENTIFIC INQUIRY THE DIVERSE WAYS IN WHICH SCIENTISTS STUDY THE NATURAL WORLD

20 OBSERVATION A SKILL THAT INVOLVES THE USE OF ONE OR MORE OF THE SENSES TO GATHER SENSES TO GATHER INFORMATION AND COLLECT DATA

21 DATA THE FACTS, FIGURES, AND OTHER EVIDENCE GATHERED THROUGH OBSERVATION

22 INFERENCE AN INTERPRETATION OF AN OBSERVATION THAT IS BASED OBSERVATION THAT IS BASED ON EVIDENCE OR PRIOR ON EVIDENCE OR PRIORKNOWLEDGE

23 HYPOTHESIS A POSSIBLE EXPLANATION FOR A SET OF OBSERVATIONS OR ANSWER TO A SCIENTIFIC QUESTION; MUST BE TESTABLE

24 VARIABLE ANY FACTOR THAT CAN CHANGE IN AN EXPERIMENT

25 CONTROLLED EXPERIMENT AN EXPERIMENT IN WHICH ALL OF THE VARIABLES EXCEPT OF THE VARIABLES EXCEPT FOR ONE REMAIN THE SAME FOR ONE REMAIN THE SAME

26 SCIENTIFIC THEORY A WELL-TESTED CONCEPT THAT EXPLAINS A WIDE RANGE OF OBSERVATIONS

27 Put the Following Steps in the Proper Order A) FORM A HYPOTHESIS – MAKE A PREDICTION B) ANALYZE THE RESULTS – COMMUNICATE DATA USING TABLES AND GRAPHS C) ARRIVE AT A CONCLUSION D) TEST THE HYPOTHESIS – DESIGN A CONTROLLED EXPERIMENT E) RECORD DATA – MEASURE USING APPROPRIATE TOOLS F) MAKE OBSERVATIONS G) IDENTIFY THE PROBLEM OR ASK A QUESTION


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