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.
dilluns, 28 de setembre del 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.
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