What You Need
What You Do
What is happening?
Do you see little red marks on the leaves? Take the celery out of the glass. On a cutting board, use a knife (with help from an adult) to make a cross section of the celery stalk. Look at the celery stalk. You will see lines or what we sometimes call "strings" of the celery are red. On the outer edge of the stalk you will also see little red dots.
We see evidence that water is absorbed or sucked up by a plant. It travels up the stalk and then into the leaves. This is how water is conducted and circulated in plants.
You may have fun trying this same experiment with Queen Anne's Lace or a white carnation.
Note: This experiment requires some leaves, since a plant's circulation is powered by "transpirational pull"—the leaves "breathing." You will also get better results if you cut the bottom of the stalk (or flower stem) to expose a fresh edge that has not become clogged or dried up.