http://quizhub.com/quiz/periodictable.cfm
on 29 April, 2002 494 Views[No element data, requires Flash] An online learning activity for chemistry students. The goal is to drag element symbols onto their correct positions in the periodic table.
Bu arama motoruna herkes site ekleyebilir. Eklemek için lütffen Kayıt Olunuz.
http://quizhub.com/quiz/periodictable.cfm
on 29 April, 2002 494 Views