Why do the pieces of tape push away from each other?
Here's how kids have voted so far:
20% air pressure pushes them
52% they have the same electrical charge on them
27% they have different electrical charges on them
How's it work?
When you pull the tape out of the dispenser, there's a screech. The noise means that there's some rubbing, or friction. Rubbing plastic can give it an electric charge. Both pieces of tape have the same kind of electric charge and they repel each other.
Want to talk about it? Go to the boards and discuss your results with other DFTVer's!