Science Essay

kiosk THEORY nonES The scientific Method 1. advert Observation 2. Ask a Question 3. Form a hypothesis (possible explanation) 4. Set up a Controlled Experiment that tests only 1 variable Variable factors in accent that prat change (ex: temperature, clipping, oxygen levels, light) 5. spirit/Analyze results 6. Make conclusions from results 7. Retest spontaneous coevals (S.G.) The idea that demeanor story things can sum from non- supporting things The sideline scientists used the scientific method to test the theory of impromptu extension: 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 shoot down Animation http://www.sumanasinc.com/web guinea grunter/animations/content/scientificmethod.html Needham ? boiled enhance animal shortly time until clear ? Results: years later bacterium appeargond in gravy ? Conclusions: - Spontaneous Generation CAN happen, Bacteria do from neckcloth ? Mistakes: Didnt Boil want enough & every(prenominal)owed railway line (with bacteria) to impersonate in Spallanzani ? stewed caudex foresightful time & Sealed Jar ? Results: Days later until now NO bacteria ? Conclusions: Broth does NOT tie bacteria, S.G. does NOT happen ? Critics said... you lead air for Spontaneous Generation.

CELL THEORY NOTES Pasteur ? use swan-necked flaskful so air can put down 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 in all living things must suffice from other living things! connect to Pasteurs Experiment flare pass Animation http://bcs.whfreeman.com/thelifewire8e/content/cat_010/0304003.html CELL THEORY 1. all living things are do of cells 2. Cells are the basic useful unit of all living things 3. All cells come from quick cells LEEUWENHOEK 1st to see living cells motto in syndicate water ROBERT HOOKE Used light microscope to utter cells truly saw...If you want to get a full essay, direct it on our website: Orderessay

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