Electrolyte Challenge - HELP!!

[eklowe99]

So, we went to do the Sports drink electrolyte challenge today, and we were going to do three tests. We have 8 solutions, Tap hater, distilled water, Gatorade, G2, Powerade, Powerade 0, Orange juice, and chocolate milk. I have a different straw/copper wire piece for each solution. As far as we could tell, out multi-meter was set up correctly. The first test we ran gave us some interesting results, but it looked like what I was expecting. After that, we tried to run a second est, and all we would get was a random number flash on the screen, then the multi-meter would reset itself to .10 if in milliamps, or 1.0 if in microamps. When i recorded the random number that flashed up, it wasn't anything anywhere near what it should be. I cant figure out anything we did wrong, and we are really confused. Help!!

[eklowe99]

We've checked all of our connections, and have cleaned the wires and straws multiple times.

[bfinio]

Hi eklowe99,

There is a section called "How can I tell if I blew the fuse in my multimeter?" at the bottom of the Help page for this project:

https://www.sciencebuddies.org/science- ... shtml#help

Can you follow those steps to check if your multimeter is still working properly?

-Ben