Celery Stem & Kang Kong Plant Experiment

Hi pupils,

We have discussed this experiment in class this week.

Here's some pointer to summarise & consolidate your learning.

• The red-coloured water is carried by the celery stem to the leaves, causing the leaves to turn red.
• The water level dropped from 150ml to 80ml after 5 days.
• The red-coloured water is absorbed by the kang kong roots, carried by its stem to the leaves. (This is observed as the water level in the beaker decreased after 5 days)

Do you know why the leaves of the kang kong plant did not turn red? (Hint: research on roots) Feel free to comment in the class blog why the leaves did not turn red.

Here's some pictures of the cross-section of the celery stem and sample of the leaves, tinted with red stains.