• Celery stalk
• 1 tablespoon (15 milliliters) of red food coloring
• Tall, clear jar
• Enough water to fill half the jar
First get permission to use kitchen equipment and ingredients.
1. Pour the water in the jar. Add the red coloring.
2. Stand the celery in the glass.
3. Wait 24 hours, and the celery leaves will turn red.
The celery absorbs the water—and the coloring—and carries it to the leaves. Plants absorb water and minerals in a process called osmosis. In osmosis liquids pass through a plant's membrane, or outer covering, and move through its stem to its leaves.
