MadSci Network: Microbiology

Subject: Would baking water remove all bacteria, and how to test?

Date: Sun Feb 24 17:30:30 2002
Posted by Sharon
Grade level: 4-6 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Microbiology
ID: 1014589830.Mi

Please can you help? My third grade daughter has come up with a science project
on her own this year. I didn't want to discourage her, but I know enough to 
know that she can't look for bacteria with a magnify glass. She thought the 
dirt she saw through it was bacteria.

Here is her question: Do Bacteria go away when you bake water? (not boil but
bake). Her Hypothesis: Yes. I think the bacteria will go away because the heat 
will burn the bacteria.

How can I help her test this? We can get a microscope from the school. Any 
suggestions?  Our alternative is to replicate a crystal project from a book, She 
was so excited about thinking up the question, after playing with water and the 
magnify glass, that I hate to discourage her from doing this.

Thank you for your help.


Re: Would baking water remove all bacteria, and how to test?

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