# Scientific Method

 Scientific Method Step-by-step way in which scientists answer questions.1. Ask a question.2. Research the topic.3. Form a hypothesis.4. Test the Hypothesis.5. Gather Data.6. Analyze Results.7. Draw Conclusions8. Communicate Results. Hypothesis An explanation that is based on prior scientific research or observations and that can be tested Controlled Experiment An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group. Control Group The group that the scientist changes nothing in. Experimental Group The group that the scientist has changed something. It is the variable in the experiment. Variable The factor that is different from one group to another Independent Variable The factor that the scientist has changed in order to test the hypothesis What is testedWhat is manipulated Dependent Variable The result of what the scientist changed. What happened in the experiment. What is observedWhat is measuredThe data collected during the investigation Constants They are what the scientist kept the same in both the control group and the experimental group. Observations Any use of the senses to gather information Qualitative Observations Anything that you see, smell, touch, taste, or hear. Quantitative Observations Any observation that can be measured.  Must include a number Model A representation of an object or system.Physical ModelMathematical ModelConceptual Model Theory An explanation that ties together many hypotheses and observations.Supported by repeated trials.May help with further predictions.Tells why it happens. Law A summary of many experimental results and observations.Tells how things workOnly tells what happens, it does not explain why. Direct Observations Indirect Observations Accuracy Precision Inferences Conclusions or deductions based on observations.The process of drawing a conclusion from given evidence. The higher the temperature of water, the faster an egg will boil.  Which is dependent variable? C. length of time the egg will boil This is the variable that is measured and observed. Authorjadeten2003 ID231287 Card SetScientific Method DescriptionScientific Method Updated2013-08-26T01:33:23Z Show Answers