This is a nice little project to undertake with children using dried beans or lentils from the kitchen cupboard. Here green lents and black-eyed peas are used, but you can try using anything you have in the cupboard. These were grown for the first 5 days on wet paper, just so as it is easy to see the progression. On day 15, some were moved under glass in the garden while others were left inside on the windowsill. After 4 months, they had grown significantly!