Francesco Redi Scientific Method Marwa AlMarzooqi – H00233649 Aysha AlBalooshi – H00237246 Early Childhood Education – semester 6 LSH 2203 Critical Thinking Maureen Szulczewski 19th March 2015

Introduction Francesco Redi: Italian physician and poet. Aysha Introduction Francesco Redi: Born Feb. 1626, Arezzo, Italy Died March 1697, Pisa Italian physician and poet. Acquired a degree in medicine and philosophy from the University of Pisa. One of the first to disprove spontaneous generation. Maggots in meat came from flies’ eggs. http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/62979 http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208 http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/106478#279371.toc

The Problem : Spontaneous generation Marwa The Problem : Spontaneous generation Meaning: The sudden appearance of some organisms. Life naturally developed from non-living matter. Example: Maggots arose from meat. Mice from the grain. Video: https://www.youtube.com/watch?v=WNByRghR6sw http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208/media?assemblyId=143729 http://www.slideshare.net/cavalierem/biogenesis-vs-spontaneous-generation

The Problem : Redi’s Hypothesis Aysha The Problem : Redi’s Hypothesis Hypothesis: New organisms produced only by existing organisms. Redi’s question: Where do maggots come from? https://prezi.com/zocmtqhj--gc/copy-of-evolution/ http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208 http://www.strictlygenteel.co.uk/evolution67/evolution3.html#

Redi’s Experiment Observed: Noticed and described: Marwa Redi’s Experiment Observed: Maggots appear where flies had previously landed. Flies coming from maggots. Noticed and described: The different developmental forms of flies. Proposed a new hypothesis: Maggots came from eggs that flies laid on meat. Experiment: Putting meat into three separate jars. http://faculty.sdmiramar.edu/dtrubovitz/micro/history/Redi.html http://www.slideshare.net/cavalierem/biogenesis-vs-spontaneous-generation

Redi’s Experiment Step 1 Jar-1 Left open Maggots developed Aysha http://faculty.sdmiramar.edu/dtrubovitz/micro/history/Redi.html http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208/media?assemblyId=143729

Redi’s Experiment Step 2 Jar-2 Covered with netting Aysha Redi’s Experiment Step 2 Jar-2 Covered with netting Maggots appeared on the netting http://faculty.sdmiramar.edu/dtrubovitz/micro/history/Redi.html http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208/media?assemblyId=143729

Redi’s Experiment Step 3 Jar-3 Sealed No maggots developed Aysha http://faculty.sdmiramar.edu/dtrubovitz/micro/history/Redi.html http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208/media?assemblyId=143729

Analysis and Theory The experiments shows: Other scientist: Theory: Marwa Analysis and Theory The experiments shows: Maggots and flies arise from living parents. Other scientist: John Needham, from England: Life had been created from nonlife. Lazzaro Spallanzani, an Italian scientist: Boiling kills any living organisms. Consequently, there were no living organisms give rise to new ones. Louis Pasteur, a French scientiste: The microorganisms reproduce and give rise to many others like themselves. Theory: Life did not arise from nonlife. http://www.strictlygenteel.co.uk/evolution67/evolution3.html# https://diogenesii.wordpress.com/tag/spontaneous-generation/ http://www.infoplease.com/cig/biology/spontaneous-generation.html#

Spallanzani and Pasteur Experiments: Marwa Spallanzani and Pasteur Experiments: http://childofthecornx.livejournal.com/19219.html

Effect of Discovery At Redi’s time: Years later: Aysha Effect of Discovery At Redi’s time: people didn’t believe in his experiment. Years later: Pasteur insured that spontaneous generation was totally wrong by his experiment. The significance of the discovery: That there is no organism come from non-life organism https://amoebamike.wordpress.com/2009/10/06/spontaneous-generation-a-brief-history-of-disproving-it/ http://www.infoplease.com/cig/biology/spontaneous-generation.html - http://ic.galegroup.com.ezproxy.hct.ac.ae/ic/suic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&prodId=SUIC&windowstate=normal&contentModules=&display-query=&mode=view&displayGroupName=Reference&limiter=&u=971hctnet&currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&p=SUIC&action=e&catId=&activityType=&scanId=&documentId=GALE%7CCV2643450425

References AmoebaMike. (2009, October 6). Spontaneous generation: a brief history of disproving it. | amoebamike. Retrieved from https://amoebamike.wordpress.com/2009/10/06/spontaneous-generation-a-brief-history-of-disproving-it/ Biogenesis vs. spontaneous generation. (2014, September 21). Retrieved from http://www.slideshare.net/cavalierem/biogenesis-vs-spontaneous-generation Childofthecornx. (2006, February 23). Biology notes: unit 4 lesson 1. Retrieved from http://childofthecornx.livejournal.com/19219.html Did man get here by evolution or by creation? (n.d.). Retrieved March 14, 2015, from http://www.strictlygenteel.co.uk/evolution67/evolution3.html# Francesco redi - biography, facts and pictures. (n.d.). Retrieved March 10, 2015, from http://www.famousscientists.org/francesco-redi/# Francesco Redi. (2015). In Encyclopædia Britannica. Retrieved from http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/334292 Lynch, T. (1998). Redi experiment. Retrieved March 12, 2015, from http://faculty.sdmiramar.edu/dtrubovitz/micro/history/Redi.html

Life. (2015). In Encyclopædia Britannica. Retrieved from http://school Moulton. (2004). Origin of life: spontaneous generation. Retrieved March 14, 2015, from http://www.infoplease.com/cig/biology/spontaneous-generation.html# Moulton, G. E. (2004). The complete idiot's guide to biology. Indianapolis, IN: Alpha. Olsen. (2014). Spontaneous generation | professor olsen @ large. Retrieved from https://diogenesii.wordpress.com/tag/spontaneous-generation/ Spontaneous generation. (2015). In Encyclopædia Britannica. Retrieved from http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208 spontaneous generation experiments . [Art]. In Encyclopædia Britannica. Retrieved from http://school.eb.com.ezproxy.hct.ac.ae/levels/high/article/69208/media?assemblyId=143729 Spontaneous generation from evolution: the grand experiment, book and video series [Video file]. (2009, August 12). Retrieved from https://www.youtube.com/watch?v=WNByRghR6sw Watch Tower Bible and Tract Society of Pennsylvania. (1967). Did man get here by evolution or by creation? New York: Watchtower Bible and Tract Society of New York.