OBBL Ideas |
Bubbles and Droplets | OBBL Help |
* Bubbles rise. They must be trapped or they will float away.
* Whole droplets cannot be stacked; they spill. Half-droplets can be stacked.
Hints:
Math Cats' OBBL Idea pages © copyright 2002 -
by Wendy Petti of Math Cats. All Rights Reserved.