Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Full Bottle, Hole, No Leak
Name: Bob
Status: student
Grade: 9-12
Location: PA
Country: N/A
Date: 6/22/2005


Question:
Why does water not leak out of a closed plastic bottle (cap tightly secured on top) with a hole poked in it?


Replies:
Bob,

When the water leaves the bottle, it must be replaced by air. If the bottle is closed, there is no way for the air to get in. After the first few drops have escaped, you have a small vacuum in the top of the bottle. If the bottle were very thin and flexible, the bottle would collapse to let the water out.

Dr. Ken Mellendorf
Physics Instructor
Illinois Central College



Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory