>> hettie's sisters, heather and helen. >> napkin? >> careful. nice to meet you...all. >> of course you'll stay for supper. >> hettie's making ion stew. all: yum, yum! >> ion stew? sounds...delicious. >> will oxygen atoms be there, too? all: oxygens?! >> uh... >> what did i say?! >> aah! [hydrogens yelling] >> whew! >> i don't know, multo. i don't think they like oxygens much. >> but hydrogen and oxygen atoms need to get along and form water molecules. without that happening, the earth would have no water. [whimpers] >> have you met the oxygens yet? >> not yet, but i think we're about to. >> oxygen atoms?! >> yep. i'm ma oxygen. this here's my boy ollie. who are you? you family to them other atoms? >> no. we're zuleans. see? >> hey, ma, maybe they're friendly. >> we're very friendly. >> you tryin' to sell me something? >> no. we just want to talk to you about hydrogens. all, except ollie: hydrogens?! >> what did i say? what did i say? [oxygens yelling] >> how are we going to find out why they're mad at each other if they keep chasing us away? >>