Celery Experiment

We conducted an experiment with celery, water and food colouring. Plants absorb water through their roots through a process called osmosis. The water travels up tubes in the stems to all parts of the plants, and is used during photosynthesis to make food for the plant. When food colouring is added to the water, it travels with the water into the celery's stem and then into the leaves. Plants also absorb nutrients from the soil through the roots and up through the phloem in the plant's stems. The food colouring illustrates how nutrients are delivered to all parts of the plant.