Welcome to our website! This website allows you to view one of the many science fair projects done by students at General Wolfe  School during the Science Fair  2001  held in March. We hope that this website will give you some ideas for the upcoming future science related projects. Thanks for visiting our  website.

PROBLEM
We are trying to determine which conducts electricity better, an acid or a base. We are going to set up a circuit in which we are using an acid (vinegar) and a base (sodium bicarbonate water)
as conductors. Secondly we will add salt (NaCl) to each solution to see if the conductivity will change.

HYPOTHESIS
We predict that the base with 1 tablespoon of salt will conduct electricity better.

PROCEDURE
First we set up the circuit by two wires connecting from the battery, one connecting to the voltmeter
and the other placed in the solution and another wire connecting to the voltmeter into the solution.
Experiment #1- base conductor SODIUM BICARBONATE WATER (1 cup of water + 1 tablet of alka-seltzer)
Experiment #2- acid conductor VINEGAR (1 cup of vinegar)
Experiment #3- acid + base conductor VINEGAR + SODIUM BICARBONATE WATER (1/2 of each solution)
Experiment #4- 1 tablespoon of salt added to the base solution.
Experiment #5- 1 tablespoon of salt added to the acid solution.
Experiment #6- 1  tablespoon of salt added to the acid + base solution
Experiment #7- another tablespoon of salt added to all the solution.
We recorded the electricity level of each of  the solutions.

MATERIALS
-salt
-water
-vinegar
-alka-seltzer
-wire
-6 volt battery
-voltmeter
-beaker
-bowl

OBSERVATIONS
We observed that by adding 1 tablespoon of salt to the acid and the base and both of them combined, increased the
conductivity level and then decreased when we added another tablespoon of salt.

CONCLUSION
Our hypothesis was incorrect, the acid + base combined with the 1 tablespoon of salt conducted electricity better.