Term 3

Term 3
This term we have been learning all about science and methods. We have learnt how to write the Intructtions of "How to make a Sandwich" and "How to make a cup of tea." We are having a lot of fun. We have also learnt the meaning of pH and we will be doing some experiments with soap later in the term. Our question will be...
Q: What soap is least harmful to my skin?
Purpose: To find which soap is best for me.

Hypthesis: What do you think the pH's of soaps will be? Range?
You probably have no idea what I am talking about but the pH is: (Potenial of Hydrogen) A measure of the degree of the acidy or alkaline of a solution as measured as scale. Every liqoud you will see will have either adidic or basic traits. The combination of two Hydrogen atoms with one Oxygen atom forms the “miracle” substance of life on this planet – WATER. Water not only makes up 70% of the planet, it also makes up about 70% of the human body. A large majority of all we are physically is simply hydrogen and oxygen.


By M. Ryan-Mcginness