Poplar_Crochet on MSN

Cute & easy Christmas snowman keychain crochet tutorial

This cute and easy Christmas snowman keychain crochet tutorial shows you how to make an adorable mini accessory perfect for ...
C&EN

Atom Exchange between Aqueous Fe(II) and Structural Fe in Clay Minerals

† Civil and Environmental Engineering, The University of Iowa, Iowa City, Iowa 52242, United States ‡ Department of Geology and Geophysics, University of Wisconsin, Madison, Wisconsin 53706, United ...