|Mmmm, gingerbread cookies! How festive!|
To explain the idea of convection (the process that makes perfect cookies) we are going to do an experiment with ice cubes!
- A rectangular tub about 10 inches deep
- Desk Lamp (with lightbulb)
- Ice Cube Tray
- Blue and Red Food Coloring
What To Do:
(Pre-Lab Set Up) - Fill an Ice Cube Tray with water; add a few drops of blue dye to each container
1. First fill the tub with about 8 inches of water.
3.) Put the ice cubes in the side of the tub opposite the lamp.
4.) Place a few drops of red food coloring on the side with the lamp.
5.) Watch the initial reaction. The food color should not mix at this point because they are different temperatures. (However some of the dye may mix, that happened with us.)
6.) After about 20 (maybe more) minutes the water should be a purple and the ice cubes melted. This is because heat from the lamp has moved throughout the container (convection!) and the food coloring has mixed.