The idea of these seed ID challenges will be to introduce some real world reasons why someone might need to identify seeds.
Scenerio: Your friend gave you a wonderful gourmet bean soup mix. You’d like to buy more, but it is very expensive. If you could identify all the beans in the mix, you could put it together using cheaper beans from the bulk area of the grocery store. Time to make the grocery list.
What beans should you put on your list?
If you need help, try the Seed of the Week archive at Growing with Science blog for at least a few of them.