B. was doing several experiments today and i decided to observe one (Cory usually does them with him.); boy did I picked a good one!
It was showing the difference between chemical change and physical change. The physical change part was simple - place the beaker of water in the freezer. Water changes to ice. It expands. no big deal. The chemical change part though - well....we'll just show you!
 |
| Safety! |
 |
| the blue stuff.... |
 |
| the egg... |
He placed the egg in the blue stuff. As you can see, the calcium from the egg shell reacted with the chemical in the blue stuff ....
A bit of a time lapse...2 minutes....
Then he tried to retrieved the egg....
But wait....there's more! : ) (this is my favorite part!)
No comments:
Post a Comment