The bean leaves or seed leaves are the first leaves your sprout grew. Not the first set of true leaves, mind you. (Others call them the nonserrated leaves) They are also called cotyledons and they are what feeds your sprout for it's journey upward and outwards. Now if you transplant your sprout and put her in soil up to the seed leaves that long stem will eventually turn to root. (But don't bury your seed leaves) Make sure you put your lights closer, invest in a fan to promote circulation and stem strength, then you'll be able to watch her grow. She'll show you how happy she is! Happy Growing and Peace!