Vial of cobalt chloride test paper strips that are used to test the presence of water leaking through small cracks. This paper turns from blue to pink when water is present.
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