Minerals and National Gypsum
This Classic Indiana Expeditions segment originally aired in Indiana Expeditions #202 (2009). To see more Indiana Expeditions segments visit the WFYI website: http://www.wfyi.org/IndianaExpeditions/
This Classic Indiana Expeditions segment originally aired in Indiana Expeditions #202 (2009). To see more Indiana Expeditions segments visit the WFYI website: http://www.wfyi.org/IndianaExpeditions/
people at school watching this, come watch some call of duty here!
GypSUM…not GypSIN
Isn’t this harmful to humans