Hmmmm.......

dharani is not sure she should do this but she will follow her heart? After alot of thought, (seriously like three days non-stop) she wants to change her experiment because she doesn't know how to get conclusive results. She actually has more ideas than the ones she had before and they are:

1. To see whether a few fruits and veggies conduct electricity
2. To investigate whether the shell of an egg dissolves when the egg is put in vinegar
3. To see whether a potato grows inside of a closed shoebox with a hole on one side
4. To see which solvents are better preservatives

I have chosen to do the fourth option. To do this i will need: four clear drinking glasses, water, a chicken bouillon cube, salt, white vinegar, sugar, a measuring cup and a measuring spoon.

I am planning to dissolve the chicken bouillon cube in a cup of hot water and then dividing the solution equally into the three clear glasses. I will then put one teaspoon of salt into one of the glasses, one teaspoon of vinegar in another glass and a teaspoon of sugar in the third glass. The glass with nothing extra in it will be my control as it doesn't have any preservatives in it. I will then leave each of the glasses in a warm spot for a week, noting the observations i make daily so i can see how much the solutions have changed.

Th independent variable is the preservative that i put in the chicken bouillon-water solvent.

The dependent variable is the how 'cloudy' the solution becomes over the week.

The controlled variables are the amount of chicken bouillon-water solvent, how much of each preservative i use, where i put the glasses and how long the glasses are kept out.

I really, really, really hope that Ms Zhang approves my experiment... finger, toes, arms, legs, hair, body... basically everthing crossed that she does... or else dharani is in real trouble.

well..good luck dharani!