Becker Bottles “One in a Million” Demonstration Models for chemistry displays molecular concentration and parts per million contamination concepts in a visual manner. Students easily comprehend the concept of solution concentration from this simple demonstration.
SIUE STEM Resource Center
http://www.siuestemcenter.org/
Southern Illinois University Edwardsvillehttp://www.siuestemcenter.org/
Science East, Room 1276
Edwardsville, IL, 62026
USA
618-650-3065