First we had to fill up our conical flask with water up to 250ml. Also we had to up the celery. Next we had to choose what food colour to put in. So I chose red. We had to put 10 drops in the conical flask together with the water. Then we put in the celery, wrap a plastic bag on top of the leaves and tie it around. Now we had to wait 30mins. After that we opened the bag up and the colours has went up the stem and changed it colours.
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