Science Buddies: "Ask an Expert"

Im sorry im posting a lot, but i really need some help understanding some stuff.

My assignment states
what is a fair test?
well designed scientific investigations study factors which could affect the results. These factors are called variables.

I am doing my assignment and i have to include a variable. Im testing amounts of vitamin C in fruits. So if i want a variable so it mean i have to say find the amounts of vitamin C then find the difference if i add for example... sugar to the fruit juice. Or is there already a variable in the experiment, just that im not controlling it?

thanks again to those willing to help, i greatly appreciate it so much.

KnightSaber

hi!

i found a site about what a fair test meants: http://www.indiana.edu/~ensiweb/fair.tes.html

also, i am unsure how to answer your question about variables. what is the procedure for your project?

Hi KnightSaber!

Looking at your overall project, if you provide "Which fruits contain the most vitamin C?" to answers.com, you'll get a wealth of web resources. I would steer clear of "sponsored" results, as well as one site that seems to promise results for $10.

Re: variables, Science Buddies has a full discussion. Please see https://www.sciencebuddies.org/mentorin ... bles.shtml It's located under "Home Page" -> "How to Do a Science Fair Project" -> "6. Variables & Hypothesis".

Please buzz back in if you have any questions or comments.

Thanks.

thanks i understand it now.

Hi KnightSaber!

That's great news, and thanks for saying so! You definitely made my day.