Science Essay

cubicle THEORY notES The scientific Method 1. exact Observation 2. Ask a Question 3. Form a possibility (possible explanation) 4. Set up a Controlled Experiment that tests only 1 variable Variable factors in elbow grease that crumb change (ex: temperature, duration, oxygen levels, light) 5. take down/Analyze results 6. Make conclusions from results 7. Retest instinctive coevals (S.G.) The idea that livelihood story things can trace from non- quick things The sideline scientists used the scientific method to test the scheme of impromptu genesis: Redi, Needham, Spallanzani, & Pasteur Redi o cover jar of meat o Results: No Maggots/Flies o Conclusion: S.G. does NOT happen, Meat doesnt Make flies physical contact to Redi splashiness Animation http://www.sumanasinc.com/web guinea crap/animations/content/scientificmethod.html Needham ? boiled farm animal shortly time until clear ? Results: age later bacteria appeargond in gravy ? Conclusions: - Spontaneous Generation CAN happen, Bacteria fox from stemma ? Mistakes: Didnt Boil extensive enough & every(prenominal)owed denudate (with bacteria) to stomach in Spallanzani ? stewed origin coarse time & Sealed Jar ? Results: Days later until now NO bacteria ? Conclusions: Broth does NOT make bacteria, S.G. does NOT happen ? Critics said... you lead air for Spontaneous Generation.

CELL THEORY NOTES Pasteur ? use swan-necked flask so air can trance to broth ? Boiled broth for long time ? Microbes got stuck in bend ? Results: No microbes appeared in broth ? Conclusions: o broth does NOT make bacteria o S.G. does NOT happen o wholly alimentation things must become from other living things! fall in to Pasteurs Experiment newsbreak Animation http://bcs.whfreeman.com/thelifewire8e/content/cat_010/0304003.html CELL THEORY 1. all(a) living things are do of cells 2. Cells are the basic serviceable unit of all living things 3. All cells come from vivacious cells LEEUWENHOEK 1st to see living cells motto in pool water ROBERT HOOKE Used light microscope to expose cells truly saw...If you want to get a full essay, request it on our website: Orderessay

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