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What is a microbe?
a very small living thing, a germ or a microorganism such as bacteria, and especially one that causes disease.
What is spontaneous Generation?
refers to the idea that life (for example, germs or maggots) can ‘magically’ appear from rotting material, and that germs are the result of – not the cause of – infectious disease.
What is Pasteurisation?
refers to partially sterilising (removing germs from) something, such as milk, to make it safe to eat or drink.
What is Germ Theory?
refers to the idea that germs, or microbes, are the cause of decay and disease. In Europe, the theory was developed and proven between about 1850 and 1920.
What was Cholera?
an acute disease involving severe diarrhoea that is caused by cholera bacteria in food or water.
What powered machines that kickstarted the Industrial Revolution?
Water and Steam
Which English scientist suggested that illness was caused by ‘microscopic poisonous insects’?
Richard Bradley
In 1850, Felix Pouchet suggested that microbes appeared when something was rotting. What was this idea called?
Spontaneous Generation
What products had Pasteur been working on to investigate souring?
Milk and beer
What type of jar did Pasteur use in his experiments?
A swan-necked jar
What is pasteurisation?
A process that kills germs by heating
What is Germ Theory?
Idea that microbes in the air cause decay
When did Pasteur publish his Germ Theory?
1861
What animal did Pasteur experiment on in 1668?
Silkworms
Who proved that germs caused illness?
Robert Koch
Why did Scientists use dyes and photography?
To stain bacteria; to prove what specific illnesses they caused, to allow them to photographed so they could be identified
Who identified Cholera germ?
Robert Koch
Why did Bastian disagree with Germ Theory?
The human body has so many germs that if they caused illness, we would never be healthy
Who linked dust to Germ theory?
John Tyndall
By when was Germ theory largely accepted in Britain?
By 1900
