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Copy of Summary of Redi's experiment

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gabi soria

on 29 January 2015

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Transcript of Copy of Summary of Redi's experiment

Summary of Redi's experiment
Redi's problem was originally where do maggots come from. At the time most people believed they came from the meat itself but Redi thought it came from the eggs flies lay. To prove his theory Redi created an experiment. He put a piece of meat in three jars, jar one was left open, jar two had a cloth like covering, and jar three was completely sealed.
Results of Redi's experiment
Redi's results proved his hypothesis was correct. It showed that the jar 1 that was left open attracted a lot of flies and produced maggots. Jar 2 that had a cloth covering produced maggots on the covering. Jar 3 that was completely sealed produced no maggots whats so ever. This was proof that it wasn't the meat that produced all of the maggots.
Results and their connection to spontaneous generation
Due to the fact that the jar that was sealed contained no maggots as apposed to the jar left open which had maggots, it was clear that living organisms couldn't produce from non-living organisms such as meats.
Summary of Pasteur's experiment
Picture of Pasteur's experiment
Picture of Redi's experiment
The Redi and Pasteur experiments
Results of Pasteur's experiment
Results and their connection to spontaneous generation
Steps of the Scientific Method
How both scientists used the Scientific Method
Citatons:
"Google Image Result." Google Image Result for Http://www.yourarticlelibrary.com/wp-content/uploads/2013/11/clip_image00420.jpg. N.p., 2011. Web. 28 Jan. 2015.
Lynch, Tim. "Redi Experiment." Redi Experiment. N.p., 1998. Web. 25 Jan. 2015.
Moulton, Glen E. "Origin of Life." Infoplease. Infoplease, 2004. Web. 27 Jan. 2015.
Pasteur wanted to test the theory of spontaneous reproduction by placing equal amounts of broth into two different neck shaped flasks. One a straight neck flask and the other an s- shaped flask to test the production of germs.
Harris, William. "Pasteur's Experiment." HowStuffWorks. HowStuffWorks.com, n.d. Web. 26 Jan. 2015.
"Google Image Result." Google Image Result for Https://lh6.googleusercontent.com/-XG9Cool8VUc/UIqDhMdDLqI/AAAAAAAAAqw/6qyVgErQbaI/s1600/Pasteur.jpg. N.p., n.d. Web. 28 Jan. 2015.
After a couple of weeks Pasteur began to notice that the flask with a straight neck became foggy and discoloration occurred . Meanwhile the s- shaped flask remained the same. His conclusion was that germs in the air could fall into the straight neck flask while the s- shaped trapped the germs preventing them from reaching the fluid.
Pasteur proved with his results that if spontaneous generation was actually true than even the curved neck flask would have produced germs. In this case the curved flask never got infected which showed that germs could only come from other leftover germs.
1.) Form a question
2.) Conduct research
3.) Form a hypothesis
4.) Perform an experiment
5.) Collect data
6.) Analyze the results
7.) Conclusion
Both of the scientists, Redi and Pasteur used the Scientific Method. They made hypotheses, then created an experiment to test hypothesis. Once they concluded their experiments they then formed conclusions. All of these are steps of the Scientific Method.
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