The Scientific Method Basis of All Scientific Experiments.
Post on 29-Dec-2015
<p>The Scientific Method</p> <p>The Scientific MethodBasis of All Scientific ExperimentsScientific MethodQuestion (find a problem)Observation (Research)Hypothesis (guess)Experiment Record & Analyze resultsConclude (this is what we found)6 StepsThis process is a painwhy use it?Scientific Method designed to logically solve problems and construct theories.</p> <p>To begin: YOU OBSERVE SOMETHING.</p> <p>Ex. Hey I just tried to turn the lights on in my apartment, but Im still in a dark room. Lame.When Doing LabsUse the Scientific Method accepted method for scientists to explain how things work</p> <p>Steps:</p> <p>State Problem and Collect DataFormulate HypothesisPerform Experiments</p> <p>Step 2: Collecting Data [Two Types]Quality vs. Quantity?Qualitative (Quality) </p> <p>NO NUMBERS involved</p> <p>Ex. The sky is blue</p> <p>Ex. The solution is cloudyQuantitative (Quantity) </p> <p>NUMBERS involved</p> <p>Ex. The solution is 34.50 grams</p> <p>Ex. Water boils at 100 degrees</p> <p>Step 3: HypothesisHypothesis a POSSIBLE explanation for why something happens</p> <p>Observations are NOT hypotheses</p> <p>Ex. the solution is cloudy (observation)Ex. the solution is cloudy because it is contaminated (hypothesis)</p> <p>Step 4: ExperimentsUse controls and variables</p> <p>Control the constant</p> <p>Variable the thing that changes in the experiment</p> <p>Lake vs. Ocean</p> <p>Quick Quiz #1Jeremy noticed the sky was cloudy outside. Is this a qualitative or quantitative observation? How do you know?</p> <p>How could Jeremy turn this observation into a hypothesis?</p> <p>What is a control, and how does it differ from a variable?Warm Up #1Make an observation about something you see in this room. Is it qualitative or quantitative?</p> <p>How can you turn this observation into a hypothesis?</p> <p>Why do you think it is important to perform multiple trials in an experiment?Step 5: Record and Analyze ResultsPerform multiple Trials attempts at experiment. Why?</p> <p>Collect data in DATA TABLE organize information effectively</p> <p>Analyze data using GRAPHS. Trends that may appear</p> <p>Example:What happens to the population as time increases?</p> <p>Step 6: Making Sense of Your DataAfter making sense of your data, come to a CONCLUSION.</p> <p>Does my data prove my hypothesis?</p> <p>If so, you can construct a theory </p> <p>Theory vs. LawTheory a conclusion based on REPEATED TESTINGCan be disputed/disproven via testing</p> <p>Law explains things, but do not describe them. NO EXCEPTIONS to lawsALWAYS TRUE.Laws are rare</p> <p>Quick Quiz #2Why would you perform multiple trials in an experiment?</p> <p>Once your hypothesis has been tested and proven several times, it becomes a _______.</p> <p>What is the biggest difference between a theory and a law?California: A Journey Through TimeCalifornia is a mess.Environmentally falling apart:</p> <p>SustainabilityPopulation GrowthWealth GapTypes of ResourcesPollution</p> <p>How did this happen?SustainabilitySustainability the quality of not being harmful to the environment or depleting natural resources, and thereby supporting long-term ecological balance.</p> <p> AirWaterEarthAir CO2 EmissionsCO2 = Carbon Dioxide</p> <p>CO2 linked to Greenhouse Effect retention of warm air, thus increasing earths temperature</p> <p>California = one of the worst states in USwhy?Freeways!58% CO2 emissions comes from cars/trucks on the roads</p> <p>Freeways = a necessary evil?</p> <p>How are we trying to improve air quality (transportation incentives?)</p> <p>Forest Fires = CO2California = dry heat</p> <p>Forest Fires started:LighteningSpontaneous Combustion</p> <p>Spread by: WIND</p> <p>Wildfires increase CO2 emissions</p> <p>WaterCalifornia = a desert climate</p> <p>Acquire water from outside sources (Colorado River)</p> <p>How? Aqueducts. </p> <p>Can we keep this up?Earth. Wellconcrete.National Parks = a California landmark</p> <p>Budget crisis = park closures</p> <p>Effect on wildlife/biodiversity in California?</p>
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