A scientific discovery - The story of penicillin.

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Presentation transcript:

A scientific discovery - The story of penicillin

At that time, bacterial infection killed many people. Dr. Fleming wanted to find cure for the diseases. Alexander Fleming ( )

A scientific discovery - The story of penicillin Dr. Fleming saw some moulds on a dish of bacteria... The moulds are killing the bacteria. One day in

A scientific discovery - The story of penicillin Dr. Fleming found that the mould produced a bacteria- killing chemical The moulds produce some chemicals. penicillin

A scientific discovery - The story of penicillin Two other scientists made the first penicillin drug. The drug can cure many diseases. In Florey and Chain

A scientific discovery - The story of penicillin Fleming, Florey and Chain received a Nobel Prize for their work. In What does this story tell us about scientific discoveries?

Observation by chance Sharp eyes Investigations Followed up by others Scientific discoveriesBuilding up scientific knowledge ++