Celery Stalkers - Cornell Composting

(Adapted from The Recyculum: A Resource Conservation Curriculum for Grades K6, by Eco Alliance, Inc.)

GRADE LEVELS: K-3

SUBJECT AREAS: science

CONCEPT: How do plants use water?

OBJECTIVE: To see how plants take up water and any dissolved pollutants.

MATERIALS:
_ jar or other container
_ celery stalk (or white flower)
_ food coloring

KEYWORDS: water, pollution

PROCEDURE:

1. Fill a container 3/4 full of water.
2. Add 3 drops of food dye.
3. Put a stalk of celery into the water.
4. Check often to see what happens.

FOLLOW-UP:

Discuss what this experiment tells us about how pollutants could get from water into plants.