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Famous Scientists in Microorganisms

A presentation on the most famous scientists in microorganisms for 6th grade science.

Trevor Black

on 28 October 2013

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Transcript of Famous Scientists in Microorganisms

By: Mr. Black
Louis Pasteur
Anton van Leeuwenhoek
-French Chemist (1822-1895)
-Discovered that diseases are spread by bacteria.
-Proved that microbes could be killed by applying heat.
*Known as Pasteurization.*
-Proved that if a microbes was weakened in a laboratory, and then placed in an animal's body, the animal develops a resistance to the microbe. -He called this method of fighting off microbes vaccination.
Jonas Salk
-American Scientist (1914-1995)
-Developed a Vaccine for Polio.
*Polio is a serious infection caused by a virus. In the past, epidemics of polio were common and were greatly feared because the disease left many patients paralyzed for life.*
Maria Curie
-Polish-born French physicist (1867-1934)
-Famous for research of radioactivity.
*She said that radioactivity was a property linked to individual atoms. Uranium atoms change from one element into another by giving off radiation. The new substances were created by a process called radioactive decay. Previously, scientists had not known that atoms could change in anyway.*
-First woman to win a Nobel Prize.
-First Person to win two Nobel Prizes.
-Died of Leukemia.
Alexander Fleming
Edward Jenner
-British Physician (1749-1823)
-Discovered a vaccination for smallpox.

*Smallpox spread from person to person through the air. Aches and a high fever appeared in a new patient 10 to 12 days later. Two to four days later, a rash appeared on the face and spread to other parts of the body. The rash resembled thousands of small pimples. The pimples, called pustules soon became larger, painful, and filled with pus. In the following days, scabs would form over the pustules. *
Joseph Lister
-British Scientist (1827-1912)
-Founded antiseptic surgery.
-Antiseptic is a substance that destroys, or stops the growth of germs on living tissue.
-He realized that the formation of pus was due to germs.
-He insisted on the use of antiseptics on hands, instruments, and dressings, as well as on the patient.
Dutch Scientist (1632-1723)
-A cloth merchant who made his first microscopes to inspect his cloth.
-His microscopes were very powerful for his day, magnifying objects up x500 their actual size.
-One of the first to observe microscopic life through a microscope.
-Called them animalcules
-Discovered both Bacteria and Protists
-Provided the first clear description of a red blood cell
-British Bacteriologist (1881-1955)
-In 1928 Discovered Penicillin.
-Germ killing antibiotic.
-Won a Nobel Peace Prize in 1945.
Smallpox is the first and only disease completely eradicated from nature by humans.
The World Is Full of Mysteries
Full transcript