I need help coming up with a scientific question? For a science fair. My subject is the electrical circuits and I have come to a scientific question for that. The question is what I based my experience on and such ... and I'm brain dead right now. A null hypothesis must be made of the question. (A null hypothesis is like ... a pessimistic forecast, or something like that) Also, it apparently must be able to measure something. (It should not be as far in meters or anything, but just as something mathematically. Does that make sense?) You do not need to come with a null or nothing, just the question, s 'Please.
How do electrochemical cells work?
actually "How Batteries Work"
a battery is an electrochemical cell
and you could see the combinations of metals and acids created the highest voltage and current
the search, you'll learn a lot - I hope this helped:)
Posted on April 12, 2010.
