In science, we have been studying the parts of plants and what they need to survive. To learn about the capillary action involved in bringing water from the plant's up through it's stem, we placed celery and a gerbera daisy into bottles of colored water. The color began to show up in the center of the daisy within minutes. The celery took quite a bit longer. We started at 9:20 Friday morning. By the end of the day, the daisy had blue at the end of all of its petals, and the center was quite blue. The celery had just a little red showing at the tips of the leaves. By Monday, the kids were amazed to see the drastic change in the celery. The leaves were more red than green and a good portion of the red water had "disappeared". We cut the celery apart to see the path of the red water. The daisy had gotten a bit darker blue, but the change wasn't as dramatic. The students did a great job recording in their science notebooks the changes of the celery and daisy throughout the experiment.
