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  #1  
Old 11-01-2006, 10:58 AM
starlight5 starlight5 is offline
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Default Help Please !!!!!!!!!!!!!!!!!!!!!!!!!!

hi i need help on my science fair project

i cant pick which project to do can u pleaseee help me
these are the three topics i choose
Tell me if there is any way i can make it better by expanding it any way

1.) which combination of metals( zinc and nickel, nickel and copper or copper and lead) has the highest voltage? ( is this too easy or is there anyway i can extend to make it better)

2.) which battery ( potato, lemon or banana) has the highest voltage?

3.) i was going to do something about invisible ink but i dont have any ideas please tell me if u do

THanks
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  #2  
Old 02-07-2007, 09:42 AM
irishangel2006 irishangel2006 is offline
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Lightbulb

I think you should do it on invisible ink. Then you can do the history of the person who created it and maybe find those invisible markers and then the colored ones that show it. You could say how these invisible ink thingys let people during the war to send secret messages to other people around the world.
I try!!!
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  #3  
Old 09-25-2008, 05:42 PM
Principe Principe is offline
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Default My reply

Tat suggestion was stupid! You should do it on the first one u said!
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Old 09-25-2008, 05:45 PM
Ricardo-san Ricardo-san is offline
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Default

Number 1 seems to be the best.
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  #5  
Old 10-18-2008, 09:26 AM
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Captain Beany Captain Beany is offline
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Default

Quote:
Originally Posted by Principe View Post
Tat suggestion was stupid! You should do it on the first one u said!

calm down or i will report u
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