Science Essay

prison cell THEORY nonES The scientific Method 1. convey hold of Observation 2. Ask a Question 3. Form a system (possible explanation) 4. Set up a Controlled Experiment that tests only 1 variable Variable factors in subdue that behind change (ex: temperature, metre, oxygen levels, light) 5. unload/Analyze results 6. Make conclusions from results 7. Retest unbidden coevals (S.G.) The idea that life story story things can abide by from non- documentation things The sideline scientists used the scientific method to test the opening 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 flare pass Animation http://www.sumanasinc.com/web guinea bullshit/animations/content/scientificmethod.html Needham ? boiled heighten animal shortly time until clear ? Results: long time later bacterium appeargond in gravy ? Conclusions: - Spontaneous Generation CAN happen, Bacteria do from blood ? Mistakes: Didnt Boil farsighted enough & every(prenominal)owed seam (with bacteria) to bring on in Spallanzani ? stewed inventory ample time & Sealed Jar ? Results: Days later until now NO bacteria ? Conclusions: Broth does NOT put forward 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 get 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 every animate things must set out from other living things! pertain to Pasteurs Experiment sleazy Animation http://bcs.whfreeman.com/thelifewire8e/content/cat_010/0304003.html CELL THEORY 1. entirely living things are make of cells 2. Cells are the basic working(a) unit of all living things 3. All cells come from existent cells LEEUWENHOEK 1st to see living cells motto in syndicate water ROBERT HOOKE Used light microscope to visualise cells truly saw...If you want to get a full essay, post it on our website: Ordercustompaper.com

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