Presentation on theme: "SCIENTIFIC METHOD: THE SPECIAL WAY IN WHICH A SCIENTIST GATHERS INFORMATON AND TESTS IDEAS. How scientists search for answers. A logical way of solving."— Presentation transcript:
SCIENTIFIC METHOD: THE SPECIAL WAY IN WHICH A SCIENTIST GATHERS INFORMATON AND TESTS IDEAS. How scientists search for answers. A logical way of solving problems.
5 PROCESSES OF THE SCIENTIFIC METHOD 1. OBSERVATION 2. RESEARCH 3. HYPOTHESIS 4. EXPERIMENT 5. DRAW A CONCLUSION
1. OBSERVATION: AN EXAMINATION OF SOME PART OF NATURE. The senses of sight, smell, touch, taste & hearing are used in making observations. Observations are recorded. Observations often lead scientists to ask questions.
2. RESEARCH: TO FIND OUT WHAT IS ALREADY KNOWN ABOUT THE SUBJECT.
3. HYPOTHESIS: A PROPOSED ANSWER TO A QUESTION – AN EDUCATED GUESS. What you think will happen – a prediction. It is your “best guess” or “educated guess”. Based on observations and research.
4. EXPERIMENT: THE TEST FOR THE HYPOTHESIS. Two parts or groups in many experiments. A. Control group – used as a comparison group. B. Experimental group – differs from the control group in only one factor or condition. ** At the end of the experiment, the two groups are compared.
INDEPENDENT VARIABLE: The factor that scientists change in an experiment. EX: Some plants get Miracle Gro and some do not. DEPENDENT VARIABLE: What scientists observe and measure. (results) EX: How tall the plants grow in centimeters.
5. CONCLUSION: IS A STATEMENT OF WHETHER OR NOT THE DATA FROM AN EXPERIMENT SUPPORTS THE HYPOTHESIS. The Scientist may conclude that the data does support the hypothesis. (True) The Scientist may conclude that the data does not support the hypothesis (False) – and form a new hypothesis and experiment. USE ACTUAL DATA TO SUPPORT!