This is a blog of the 4th grade class in la Farigola de Vallcarca School in Barcelona. This year we are doing “Aula de Ciències” in English.
In this blog we want to show you the experiments we do in our Science Lab. Science is fun!

dilluns, 28 de setembre de 2009

Colour Symphony

MATERIALS: 3 plastic plates 3 bottles of food colouring skimmed milk white glue water dishwashing detergent INSTRUCTIONS: - Put the milk in a plate (better if it is a little warm). - Add some drops of food colouring in a triangle or square pattern. - Put a drop of soap in the middle of the food colouring design and watch the colours move. - Try it with glue and water. WHY: Milk has fat in it and the soap breaks up the fat. The food colouring swirls into places where the fat used to be.Soap also prevents glue from sticking together. Nothing happens with water. WHAT DO YOU THINK ABOUT? Write your opinion.