Worksheet for observing capillary action in celery using food coloring.

This worksheet is asking you to do a science experiment with celery and food coloring — but since you’re doing it on paper (not in real life), you’ll be drawing what you think will happen.

Here’s how to complete it:

1. Pick a color for your food coloring — like red, blue, or green. You’ll use that same color for all three observations.

2. Observation 1 (Time: Right after putting celery in water)
- Draw the celery stalk sitting in the glass of water.
- Color the water in the glass with your chosen color.
- The celery itself should still look mostly white or light green — maybe just a tiny bit of color at the very bottom where it touches the water.

3. Observation 2 (Time: After 1–2 hours)
- Draw the same setup.
- Now, color some of the lines inside the celery stalk with your food coloring — especially near the bottom and starting to go up the stalk.
- The leaves might have a little tint too.
- The water is still colored the same.

4. Observation 3 (Time: After 4–6 hours or overnight)
- Draw the celery again.
- Now, color most of the stalk and even the leaves with your food coloring — show that the color has traveled all the way up!
- This shows capillary action — how plants “drink” water from their roots up to their leaves.

You can write times like:
- Observation 1: 0 minutes
- Observation 2: 90 minutes
- Observation 3: 5 hours

Or use clock times if you did it during the day:
- Observation 1: 9:00 AM
- Observation 2: 10:30 AM
- Observation 3: 2:00 PM

Remember — this is about showing how water moves up through the celery over time. Use your crayons or markers to make the color travel higher each time!

Final Answer:
Color the water in each glass with one consistent food coloring shade. In Observation 1, leave the celery mostly uncolored. In Observation 2, color the lower part of the celery stalk. In Observation 3, color the entire stalk and leaves to show the water has moved all the way up. Write realistic times for each observation (e.g., 0 min, 90 min, 5 hr).