Tuesday, 29 May 2007

My Aim and Hypothesis

My Aim:

To determine whether filtered water, bottled water, tap water or distilled water is the healthiest, by checking the pH, chlorine, iron, copper and bacteria levels of the waters.

My Hypothesis:

I think that distilled water will be the healthiest because it is taken from boiled water, making it sterile. I also think that tap water will be the worst because it is not as purified as the other options.

1 comment:

Gail said...

This looks fine. Just a few questions for you:

Have you determined your:
Control variables - what you are going to keep constant
Test variable - what you are going to change
Measured variable - what you are going to look for.
Can you test more than one variable - have you had a think about this?
You are doing an excellent job and you have certainly set the bar high when it comes to blogs and starting off eportfolios. You can be very proud of yourself.
Mrs M