4A Germination Project
by Ellen Walk
January 18, 2012
Recently our class was studying the four stages in a plant's life cycle. We used a couple of bean seeds from Mrs. Walk's garden plants and place them in a clear glass between the glass and a moist paper towel. We watched the seeds germinate. First, the roots appeared. Then the stem. We discovered that the roots always grow downward and the stem and leaves grow upward. Our plant needed light and water to continue growing. Photosynthesis was taking place in the leaves of the plant and the roots were providing the plants with the water that they needed.
We also learned about decomposition as the seed coats proceeded to mold and decay after they were no longer needed to protect the plants embryo.