Redi & Pasteur by Joan Messenger https://padlet.com/jmessenger/bobcats2 Write a padlet post about what you learned or found interesting about Redi and Pasteur's experiments. en-us 2017-10-12 13:04:32 UTC 2017-10-13 13:48:20 UTC hello@padlet.com Kyle Bacso https://padlet.com/jmessenger/bobcats2/wish/196415309 Redi and  Pasteur
I learned maggots do not grow on meat unless direct contact.  He conducted an expirment where he put two peices of meat in a jar.  One with a cloth, so air can pass through.  One without a cover so the flies could lay eggs.  Sure eneough the meat with the cloth was fresh, and the meat without the cover was infested with maggots.  Pasteur states that "All life comes from life". I also dicovered what spontaneous generation really means. It is the mistaken idea that living things arise from nonliving sources. Pasteur conducted an expirment where he heated both flasks. He bent one so not as much air would enter and left one straight. Dust from the air entered in the flask that had a swan neck flask was not contaminated.]]> 2017-10-12 13:37:58 UTC https://padlet.com/jmessenger/bobcats2/wish/196415309 Cambria Stansfield https://padlet.com/jmessenger/bobcats2/wish/196416163 Redi and Pasteur

I learned that Francesco Redi proved that livings things can't come from nonliving things. He put two jars with a piece of meat. One opened. One closed with a cheese cloth on top as a seal. After letting the jars sit, Redi found that flies had left maggots,or baby flies, and that no living thing came from the rotting piece of meat but came from the flies. This experiment changed the  way people thought of life.

Many years later, another scientist named Lois Pasteur carried Redi's experiment out by proving that rotting meat doesn't produce flies. He proved that spontaneous generation( the mistaken idea that living things came from nonliving sources) wasn't what people thought it was. He conducted a controlled experiment by putting clear broth in to flasks with curved necks. the necks let oxygen in but bacteria out. he boiled one broth but not the other. after days passed, the unboiled broth became cloudy showing new bacteria was growing. the boiled broth was clear. Pasteur concluded that bacteria did not appear from the broth. New bacteria only came about if bacteria was already there.
These two experiments proved that living things didn't come from nonliving things . There had to be a source to the maggots or bacteria in order for it to appear. hese experiments changed the  way people thought of life.




]]> 2017-10-12 13:39:11 UTC https://padlet.com/jmessenger/bobcats2/wish/196416163 Redi and Pasteur padlet post https://padlet.com/jmessenger/bobcats2/wish/196416165 Mason Freburger
I learned that the experiment that Pasteur and Redi came up with is called an controlled experiment. It proved that life has to come from life. Pasteur is a french scientist. Redi conducted the experiment by putting a piece of meat in both jars and one jar had a cheese cloth on top and the other jar didn't have a lid. The jar that had a cheese cloth just decayed a little bit and the one without the lid there were fly's , baby flys and also maggots because the flies laid eggs and the produced the maggots. People in the 15,000 hundred thought that life came from non living things. This experiment the spontaneous generation changed the way people thought of life.
 

]]> 2017-10-12 13:39:11 UTC https://padlet.com/jmessenger/bobcats2/wish/196416165 Redi and Pasterur https://padlet.com/jmessenger/bobcats2/wish/196416264 Mikey Muhlenfeld

I learned that 400 years ago people through that living things can come from rotting things. But the real conclusion is that animals lay eggs in the rotting animals. Redi proved this by this theory by setting up an experiment. One container with the specimen exposed. Than he had another specimen with a lid that could let the air in. Louis Pateur carried out an experiment that proves bacteria can only be produced by bacteria. These experiments prove that spontaneous generation is not a thing . living things can react to whats around them . i think they both proved grate things during their experiments.]]> 2017-10-12 13:39:20 UTC https://padlet.com/jmessenger/bobcats2/wish/196416264 Madeline Waldt https://padlet.com/jmessenger/bobcats2/wish/196416297 Redi and Pasteur
I learned that Redi designed one of the first controlled experiments.  A controlled experiment, a scientist
carries out two test that are alike besides one factor. The one factor that is changed is called a manipulated variable.  Redi created an experiment to find out and prove to the people that flies do not spontaneously arise from decaying meat,they come from other flies.  Pasteur's controlled experiment demonstrated that bacteria can arise from existing bacteria.Both of  these controlled experiments proves that life has to come from life.   
Four hundred years ago people were mistaken to believe that life could appear from a nonliving thing and this is called spontaneous generation. That is when the two scientists proved that they were wrong. I really enjoyed learning about Redi's and Pasteur's experiment.]]> 2017-10-12 13:39:23 UTC https://padlet.com/jmessenger/bobcats2/wish/196416297 Kennedy Matu https://padlet.com/jmessenger/bobcats2/wish/196416466 Redi and Pasteur 

I learned that people from hundreds of years ago had no idea where life came from. They thought that nonliving things could produce life. This was called spontaneous generation. In the 1600s an Italian doctor named Francesco  Redi conducted an experiment in which he took two jars and put a piece of meat in each of them. He covered one of the jars with a piece of cheese cloth and the other one open. After a while, the meat started to decay in both of the jars. Then he realized that in the jar without the cheese cloth on top had little maggots on it and the one with the cheese cloth had no maggots, and he concluded that rotting meat does not produce flies.  Then in the mid-1800s, a French chemist named Louis Pasteur conducted some controlled experiments and rejected spontaneous generation. He found out that bacteria comes from bacteria. Redi and Pasteur's experiments helped to convince people that nonliving things do not produce living things, and living things only produce living things.]]> 2017-10-12 13:39:35 UTC https://padlet.com/jmessenger/bobcats2/wish/196416466 Olivia Berkeridge https://padlet.com/jmessenger/bobcats2/wish/196416649 Redi and Pasteur 

I learned that in the 1500's people did not understand where life came from. Famous scientists named Francesco Redi and Louis Pasteur discovered that life cannot arise from a nonliving source. They each held an experiment. Francesco Redi put two pieces of meat in to separate jars. He put medical gauze on the top of one so air could pass through. On the other he put nothing so that flies could get through to the meat. When the flies got on to the meat they laid eggs which became maggots which is a flies first form of life. So the flies started a life cycle. On the covered jar the meat had still started to decay  but no life had started. This proved that life cannot arise from nonliving things.

 Louis Pasteur did a different experiment but it still had the same concept . He poured broth/soup in two separate flasks(aka long neck bottles) . He bent one into an "S" shape and then boiled them. The one in an S shape had no bacteria  but the other one had bacteria was inside along with mold. This was the same as Redi's except this proved that bacteria can come from bacteria not nothing
 ]]> 2017-10-12 13:39:51 UTC https://padlet.com/jmessenger/bobcats2/wish/196416649 Jacob Sack https://padlet.com/jmessenger/bobcats2/wish/196416730 Redi and Pasteur padlet post
I learned that people in the 1600 thought life came from  non living things. People believed that flies came from rotting meat. Franscesco Redi, an Italian doctor prove it was not true by by creating a controlled experiment. The experiment was pretty basic. 2 jars with meat inside, but one was covered with fabric so air could still get in. Then flies laid maggots on the meat after a few days on the open jar but not on the covered jar. Many people still were not convinced of the discovery. Hundreds of years later another scientist named Louis Pasteur went even farther on proving spontaneous generation is false.

]]> 2017-10-12 13:39:58 UTC https://padlet.com/jmessenger/bobcats2/wish/196416730 Matteo Scotto https://padlet.com/jmessenger/bobcats2/wish/196416808 Redi and Pasteur
I learned that Redi and Pasteur were life scientists that wanted to know where life comes from. Both did experiments with food and jars. Redi had two jars of meat, one had a cloth over it and the other had nothing over it making it a lore for flies. Both of the jars had decayed meat but the jar with the flies had maggots on the meat. Pasteur did almost the same thing but with fruit and it had the same results. This is called spontaneous generation, the belief that living things randomly generate from non living things. In the 1500's, many people did not understand life and where it came from. So people thought it was this case but they were very wrong. But in the 1600's one Italian scientist proved that was not the case.]]> 2017-10-12 13:40:05 UTC https://padlet.com/jmessenger/bobcats2/wish/196416808 Gregory Temple https://padlet.com/jmessenger/bobcats2/wish/196416832 Redi and Pasteur
I learned that Redi and Pasteur did very similar things in their experiments . It was called Spontaneous Generation. Spontaneous generation means The mistaken idea that living things can arise from nonliving things. People from 1500s did not know about the spontaneous generation was even a thing. Redi and Pasteur did two similar experiments on the Spontaneous Generation. Redi did a meat experiment and Pasteur did a liquid experiment. Redi put two meats in two jars . One of the jars he put a cloth on it. Then the other jar he left open with no cloth on it. He noticed The maggots only started to begin on the open jars meat and the jar with the cloth over it was perfectly healthy pace of meat.  That showed that .Living things could only come from other living things .]]> 2017-10-12 13:40:07 UTC https://padlet.com/jmessenger/bobcats2/wish/196416832 Ben Madore https://padlet.com/jmessenger/bobcats2/wish/196416843 Redi and Pasteur
I learned that Redi was an Italian doctor that made an experiment on how flies do not arise from decaying meat. I learned that flies were able to enter the under covered jar and lay eggs on the meat inside. The eggs hatched into maggots, which developed into new flies. Redi was able to conclude that rotting meat doesn't produce flies. I learned that Pasteur was a French chemist and he did his experiment on new bacteria appears in broth only when they were produced by existing bacteria. The experiments of Redi and Pasteur helped to convince people that living things do not arise from nonliving material.]]> 2017-10-12 13:40:08 UTC https://padlet.com/jmessenger/bobcats2/wish/196416843 Alex Eyler https://padlet.com/jmessenger/bobcats2/wish/196416854 Redi and Pasteur
I learned  that all life comes from life. Life cant appear out of nowhere. Redi conducted an experiment now known as "the Redi experiment."  Redi set up an experiment to show that rotting meat does not produce flies. Pasteur carried out an experiment that showed bacteria could be produced only from bacteria. These experiments helped people to understand that living things could not come from none living things. Living things come only from other living things through reproduction. Living things react to what happens around them.

]]> 2017-10-12 13:40:09 UTC https://padlet.com/jmessenger/bobcats2/wish/196416854 Grace Griffin https://padlet.com/jmessenger/bobcats2/wish/196416861 Redi and Pasteur 
I learned that Redi and Pasteur where the scientists to prove that living things come from living things through reproduction. Over four hundred years ago people believed that life can come from nonliving things. This is called spontaneous generation. For example when people saw flies around rotting meat they thought that the flies could arise from this meat.  One of the scientists who disproved spontaneous generation was the Italian doctor, Francesco  Redi. Redi  created and controlled one of the first spontaneous generation experiments. Redi proved that flies do not suddenly arise from rotting meat. After Redi's experiment people still did not believe him. A french chemist named Louis Pasteur created many experiments that proved that bacteria can only arise from other bacteria's. ]]> 2017-10-12 13:40:10 UTC https://padlet.com/jmessenger/bobcats2/wish/196416861 Mandy Schall https://padlet.com/jmessenger/bobcats2/wish/196416864 Redi and Pasteur
Both Redi and Pasteur had done experiments to prove that life can't appear out of nowhere. Redi  took two of the same jars and placed meat in them. Redi left one jar covered and the other uncovered.  In this experiment Redi discovered that the maggots  did not form on the meat that was covered but did appear on the covered jar. The maggots were actually the babies of flies. Since the jar was uncovered flies swarmed around the meat. The covered jar was not touched by the flies so there for no maggots on the meat. Even though Redi's experiment proved that living things cannot spawn from nonliving people still continued to believe that they could. Because of this Pasteur conducted his own experiment. He designed some controlled experiments that rejected spontaneous generation. He proved that new bacteria appeared in when were produced by existing bacteria.Since Redi and Pasteur both conducted these experiments it helped prove to people that life cannot form from nonliving things.]]> 2017-10-12 13:40:10 UTC https://padlet.com/jmessenger/bobcats2/wish/196416864 Logan Mezzatesta 2019lmezzatesta https://padlet.com/jmessenger/bobcats2/wish/196416911 Redi and Pasteur

I learned that in 1600s , Redi an Italian doctor helped disprove spontaneous generation. Spontaneous generation is the mistaken idea that living things can come from non living things. Redi disproved this by proving that flies do not generate from rotten meat , what he did was put meat in two jars and he put a cover on one of them but still letting it rot . The one that was not coverd had flies and maggots on it ,but the won that was covered did not even though it was just as rotten.  Pasteur was a french chemist in the mid 1800s . His demonstration was that new bacteria only appeared in broth only when they were produced by existing bacteria .]]> 2017-10-12 13:40:14 UTC https://padlet.com/jmessenger/bobcats2/wish/196416911 Aidan Height https://padlet.com/jmessenger/bobcats2/wish/196417074 Redi and Pasteur
Francesco Redi designed one of the first controlled experiments. In his experiment Redi was showing that flies don't just arise from decaying meat. The way he did this experiment is by putting two pieces of meat in identical jars, but covering one with clothe that let air in. A few days went by and Redi realized that there was maggots on the decaying meat in the open jar. But the covered jar only had the decaying meat in it. Redi made a conclusion that the open jar had maggots because flies laid eggs on the meat. The reason that there was no maggots on the covered jar is because the flies couldn't get to the meat in the jar because it was covered. This proved that decaying meat doesn't produce flies.
Louis Pasteur's controlled experiment demonstrated that bacteria only arises from existing bacteria. Pasteur put broth in two flasks with curved necks. He boiled one broth to kill the bacteria in it. But didn't boil the other. Pasteur realized a few days later that the unboiled broth was starting to get cloudy growing new bacteria. But the boiled broth was still as clean as it was when he put it in the flask. later Pasteur took the flask with boiled and still clean broth in it and broke its curved neck. Now that the air can enter the flask new bacteria can come into the broth. In few days Pasteur noticed that new bacteria was now forming.


]]> 2017-10-12 13:40:29 UTC https://padlet.com/jmessenger/bobcats2/wish/196417074 Aidan Hackett https://padlet.com/jmessenger/bobcats2/wish/196417118 Redi and Pasteur
I learned that Francesco Redi discovered that flies do not evolve out of decaying meat. Also life comes from life. The one factor that a scientist changes is called the manipulated variable. Flies go onto the jar that was not covered and laid eggs, but they could not get through the one with the closed lid. I found interesting, that when flies go onto decaying meat and lay eggs.
 Now onto Pasteur's experiment. I learned that, he designed some controlled experiments that finally rejected spontaneous generation. He demonstrated that new bacteria appeared in broth only when they were produced by existing bacteria. The experiments of Redi and Pasteur helped to convince people that living things do not arise from nonliving material. ]]> 2017-10-12 13:40:34 UTC https://padlet.com/jmessenger/bobcats2/wish/196417118 Scotty Simmons Redi and Pasteur https://padlet.com/jmessenger/bobcats2/wish/196417271 I learned that the people from the 1500's had no idea where life came from. Redi and Pasteur proved that life cant just come from nowhere. I also learned Redi is a french scientist that did a experiment where he took 2 jars and put a piece of meat in it but one had a lid and the other didn't the one without a lid the flies laid their eggs on it and their were maggots. The one without a lid had no maggots at all.  Pasteur was a Italian doctor that figured out that flies do not arise from decaying meat. ]]> 2017-10-12 13:40:47 UTC https://padlet.com/jmessenger/bobcats2/wish/196417271 Abby Streib https://padlet.com/jmessenger/bobcats2/wish/196417286 Redi & Pasteur
I discovered that an spontaneous generation is the mistaken idea that living things can arise from non-living sources. An example of spontaneous generation is Redi took two jars  put meat in them then only covered one jar and left on open. This meant that the jar open had contact with flies and after about two weeks the flies had produced maggots . This shows that all life comes from life and life cant appear out of no where. I find it shocking that people believed that after his work people still believed that spontaneous generation could still occur. Pasteur's experiment was interesting because his experiment stated that bacteria can only arise from already existing bacteria. Both Pasteur and Redi conducted a controlled experiment which is ]]> 2017-10-12 13:40:49 UTC https://padlet.com/jmessenger/bobcats2/wish/196417286 Liam Kansler https://padlet.com/jmessenger/bobcats2/wish/196417322 Redi and Pasteur

I learned that Redi and Pasteur were two life scientists. Redi was an Italian doctor and Pasteur was a French scientist. People from the 1500's did not know where life came from.  So those two scientists proved that life doesn't just come from nowhere.  Pasteur had told everyone that "life comes from life".  I also learned that Redi took two identical jars and put a slice of meat in each jar. He then covered one jar with gauze and left the other jar open.  The jar without any gauze over it had a lot of maggots surround the meat. Louis Pasteur did almost the same experiment as  Redi, except with three jars. Pasteur left one jar wide open, one jar with gauze over it, and one with a solid over the third jar to keep the maggots out for good.]]> 2017-10-12 13:40:52 UTC https://padlet.com/jmessenger/bobcats2/wish/196417322 Cici Yankuba https://padlet.com/jmessenger/bobcats2/wish/196629683 Redi and Pasteur

Redi and Pasteur have both done experiments to show all life comes from other life. For Redi's experiment he showed this conclusion by leaving two jars of meat inside to rot, but he covered one of them with a piece of cloth that allowed the air to pass through. As time went by the jar with the uncovered lid attracted flies that laid eggs on the meat which caused their to be maggots. In the jar that was covered, their were no maggots that appeared, in which that proved his hypothesis that rotting meat doesn't produce flies. 

Although Redi did an experiment to prove that flies/maggots cant arise from rotting meat, people still continued to believe that spontaneous generation could occur. So to reject spontaneous generation, a French chemist, Louis Pasteur, decided to design some controlled experiments. To show that living things don't arise from nonliving material, Pasteur did a controlled experiment showing that new bacteria only appeared in broth only when they were produced by existing bacteria. Overall Pasteur and Redi's experiments had a great impact on how life can not come from other nonliving life. ]]> 2017-10-12 20:23:51 UTC https://padlet.com/jmessenger/bobcats2/wish/196629683 Abby Streib https://padlet.com/jmessenger/bobcats2/wish/196640687 Redi & Pasteur 
I discovered that an spontaneous generation is the mistaken idea that living things can arise from non-living sources. An example on spontaneous generation is Redi took two jars put meat in both jars then covered one jar and left one open. This meant that the jar open had contact with flies and after two weeks the flies had produced maggots. This shows that all life comes from life and can't appear out of no where. I find it shocking that that people believed that after this experiment they still thought that spontaneous generation could still occur. Pasteur's experiment was interesting because his experiment stated that that bacteria can only arise from already existing bacteria. Both Redi & Pasteur conducted a controlled experiment which is a scientist carries out two tests that are identical in every respect except for one factor. I found it shocking that he used broth to conduct his experiment for proving bacteria only arises from bacteria.

]]> 2017-10-12 21:11:35 UTC https://padlet.com/jmessenger/bobcats2/wish/196640687 Jacob Sack https://padlet.com/jmessenger/bobcats2/wish/196643302

Redi and Pasteur padlet post
I learned that people in the 1600 thought life came from  non living things. People believed that flies came from rotting meat. Franscesco Redi, an Italian doctor prove it was not true by by creating a controlled experiment. The experiment was pretty basic. 2 jars with meat inside, but one was covered with fabric so air could still get in. Then flies laid maggots on the meat after a few days on the open jar but not on the covered jar. Many people still were not convinced of the discovery. Hundreds of years later another scientist named Louis Pasteur went even farther on proving spontaneous generation is false. By using boiled broth and non boiled broth. After a few days the non boiled broth had started to grow bacteria, and became cloudy. while the boiled broth showed know signs of bacteria. he concluded bacteria did not spontaneous arrive from broth.
]]> 2017-10-12 21:24:00 UTC https://padlet.com/jmessenger/bobcats2/wish/196643302 Dylan Carver Redi and Pastuer Padlet Post https://padlet.com/jmessenger/bobcats2/wish/196801746  Redi and Pastuer did a very similar thing which was spontaneous generation. Spontaneous Generation is when living things can arise from non living. People in the 1500s didn't know what spontaneous generation even was. Redi and Pastuer on spontaneous generation. An example of spontaneous generation is when you live out meat or any food outside, but one needs to have a lid on and one needs no lid. After two weeks of it sitting there will be maggots in the container with no lid, but there will be no maggots in the container with a lid because the maggots can't reach the food.]]> 2017-10-13 13:31:03 UTC https://padlet.com/jmessenger/bobcats2/wish/196801746