Hi there, I'm a teacher about to impart some of my limited of knowledge of planting to 4/5 year old children. I wanted to show how fruit and veg grow from seeds and was going to get them to split a runner bean open, identify the 'seeds' and then plant the seeds from the bean. It's to demonstrate the life cycle etc rather than buying a packet of beans/seeds to grow. Will this work? I have tried it at home but after a few days the seed remains a small pale seed without change. Any help or advice would be warmly welcome.