1. The light and the water are the same for all the plants.
2. The amount of sand that the seed was planted in.
3.The size and appearance of a bean plant.
4. How much the plant grows and maybe the color of it.
5. In case one spills or if someone doesn't take good care of their plant.
6. The root so it can get water.
7. It looks like it is going down into the ground. The pictures look like white roots and go down into the ground.
8.The plant need strong roots for a strong base to grow up for sunlight.