Search for tag: "chemical element"

chem102-010-20170508-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 56 plays 0  

chem102-010-20170501-122001.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 19 plays 0  

chem102-010-20170428-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 21 plays 0  

chem102-010-20170417-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 58 plays 0  

chem102-010-20170324-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 66 plays 0  

chem102-010-20170208-122001.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 72 plays 0