NEWTON's HOME PAGE
Stoppers are used to close flasks and test tubes from the environment. Stoppers come in many forms such as cork, rubber and plastic film that stretches over the opening.
NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by
Argonne National Laboratory
, Andrew Skipor, Ph.D., Head of Educational Programs.
For assistance with NEWTON contact a
System Operator (firstname.lastname@example.org)
, or Argonne's
NEWTON AND ASK A SCIENTIST
9700 S. Cass Ave.
Update: June 2012