2 What is the Scientific Method A series of steps that scientist use to answer questions and solve problems
3 Several Distinct Steps Ask a questionForm a hypothesisTest the hypothesisAnalyze the resultsDraw conclusionCommunicate results
4 Order of Steps Some time the steps are done in a different order Sometimes steps are skipped or repeatedIt depends on what works best to answer the question
5 TechnologyThe application of knowledge, tools, and materials to solve problems and accomplish task.Examples: computers, light bulbs
6 Goals Science and Technology to gain knowledge of the natural worldTechnologyto apply scientific understanding to solve problemsTechnology is sometimes called applied science
7 Group Activity Work in groups (Your Tables) Make a list of 10 observations about technology in the classroomTell how each example of technology improves the classroom for teaching
8 Ask a Question?Helps you focus your investigation and identify what you want to find out.Ask a question after you have made lots of observations
9 Observations Any use of senses to gather information Measurements ColorTemperatureVolumeMassWeight
10 Real World QuestionDog House Science or Technology
11 Form a HypothesisHypothesis- A possible explanation or answer to your questionMust be testableExample: A doghouse made with lighter colors will produce a cooler living environment.
12 Before Testing Hypothesis Make a prediction in the “If…..then…” format.Example: If heat is absorbed by dark colors and repelled by light colors then a doghouse made of light colors will be cooler.
13 Test the Hypothesis Test your prediction Conduct a controlled Experiment
14 Controlled Experiments Control GroupExperimental GroupBoth groups are the same except for one factor in the experimental group called the variableSometime a controlled experiment is not possibleExample researching starsHow would you conduct star research?
15 DataAny pieces of information acquired through experimentation
17 Analyze the Results Done after you collect and record data Calculations of DataOrganizing data in graphs and table
18 Number (in Millions) of Civilian/Noninstitutionalized Persons with Diagnosed Diabetes, United States, 1980–2006
19 Draw Conclusion Explaining your results Tell if your hypothesis was supported or notTell if project created new questions
20 Communicate Results Science Fair Journals Web Site New people might use your information and modify it.
21 Building Scientific Knowledge Theories-a unifying explanation for a broad range of Hypothesis.A theory can explain an observationPredict an observation possibly made in futureSpecial Theory of RelativityEvolutionCell TheoryAtomic Theory
22 Building Scientific Knowledge Laws- a summary of many experimental results and observationsTells how things workLaws tell what happen not why it happensExamples:Boyle's law, Charles' Law , Law of Gravity