// Field files for grades 2–12Observe. Measure. Explain.
← LAB FILESLAB DOSSIER / GUIDED VIDEOENGLISH VOICEOVER · CAPTIONS · OPTIONAL SFX

LIFE SCIENCE · GRADES 4–8

Trace water through celery

INVESTIGATION QUESTIONHow does water temperature change the time colored water takes to reach the leaves?

● ILLUSTRATIVE SCIENCE MODEL
ENGLISH CAPTIONS

Prepare matched temperature conditions. Use one stalk per labeled temperature and start all three together.

0.0 / 3.0 s
01 / SCIENCE

What explains the result?

Colored water traces movement in xylem; leaf transpiration and narrow vessels help pull water upward.

02 / EVERYDAY CONNECTION

Where does this matter?

Xylem transport explains water movement in plants and informs irrigation studies.

03 / MODEL LIMIT

What should you keep in mind?

Illustrative times are not predictions; stalk size, freshness, leaf area, light, dye, and water temperature affect travel. A cut stalk has no roots.

Continue to the interactive experiment ↓
← LAB FILESPLANT TRANSPORT / XYLEM IMAGINGSTEM STATION 09

DEDICATED CELERY TRANSPORT INVESTIGATION · GRADES 2–7

Trace the
waterway

Compare how cold, room-temperature and comfortably warm water affect the real time colored water takes to reach celery leaves.

ONE TEMPERATURE PER MATCHED STALK

Choose the bath to investigate

To compare fairly, prepare a fresh similar stalk for each bath. Keep cup volume, dye drops, light and stalk size consistent. The animation only illustrates a possible pattern.

CELERY SPECIMEN · ROOM TEMPERATUREFRESH CUT
COLORED WATER
DYE RIDES UP NARROW VESSELS
T+0h · MODEL
Fresh cut
2 hours
4 hours
Next day · 24 hours
Enter a stopwatch observation from the physical experiment. Do not copy the compressed animation time.

SPECIMEN JOURNAL

Compare your real observations

Water bathAverage arrivalTrials
ColdNo observation yet—
Room temperatureNo observation yet—
Comfortably warmNo observation yet—
TIME-LAPSE CHECKPOINTSAdvance the model to see the observation sequence; its elapsed labels are illustrative.

SCIENCE CONNECTION: Xylem vessels move water and dissolved minerals from roots toward leaves. Leaf evaporation helps pull water through a plant. A cut celery stalk is a simplified tracer model, not a rooted plant.