DS7 developed a sudden interest in learning the periodic table of elements last week. So far, he's memorizing the names and symbols and we got him some nice cards that have facts about the elements that he's studying. Looking for ideas of what to share with him to continue his interest (we know from history that we have "open windows" with him when he has a strong interest in a subject before he burns through it). Videos? Concepts? It has been a long time since either DH or I has looked at anything related to the elements... let's say 20 years. lol