Tuesday, April 27, 2010

Mini blog #1-Filling up a cup upside down






Today i filled up a cup upisde down without spilling any of it

Materials: Cup, Plate, Match, and liquid

Procedure:
> Get a cup and a plate
> With the plate put some soda or any type of liquid on it
> With the liquid on a plate in the middle put something that will hold a match
> after lighting the match put the match in the thing that will be holding it
> Cover the lighted match with the cup
> With the cup covering the match there is no oxygen getting the match so the match burns
out
> and then the liquid fills the class.
Science:
Is when the cup was over the match it burned out because with the cup covering it
The match didn't get any oxygen and the liquid on the plate, i used soda because it was carbinated, absorbed the oxygen and left the co2 behind and with absorbing the oxygen the liquid filled the cup.
Photocredit: Myself

Thursday, April 15, 2010

I propose we make some playdough










Links:

>How to make playdough

> How making playdough relates to chemistry


Materials: 1 cup of salt, 1 cup flour, 1 cup water, and food coloring

Procedure:
1. Pour all ingredients into a large pot
2. Stir constantly on a medium heat
3. Keep stirring until the dough forms into a ball
4. Knead the dough until it is dough like texture
5. Knead in food coloring for color (optional)
6. store in a plastic contain, lasts for 3 months



Safety Percautions:
>Keep away from any pets. The smell of the playdough smells like food
> avoid rubbing the ingredients near your eyes

scientific principles:
1. The liquid, water, keeps the ingredients together and makes
it malleable
2. The solid, salt, dissolves into the water
3. The liquid, food coloring, mixes with the ingredients make it a certain color