Plants Absorbing Water
Aim:
To colour celery or cabbage leaves - Try and see how plants absorb water
Materials
Glass jars x4
Celery
Cabbage leaves
4 different colours of food colouring
Water
Scissors/knife/chopping board to cut the celery
Method
FIll up 4 glass jars up to around half way
Put approximately 10 drops of different coloured food colouring into each jar
Place a celery stick or a cabbage leaf into each jar
Explanation
Part 1 - Explain why plants need water
In hot weather the leaves need To cool off through evaporation. Plants use water to survive, obtain energy, maintain their body structure, keep growing well and to keep their size. Plants also need water to stay strong.
Part 2 - How they absorb water
A plant can earn water by dissolving the nutrients from the soil or the roots. The roots can draw moisture from the soil and this is spread to several parts of the plant. Osmosis is the way the plant absorbs water from the soil. Water will transport through the roots where it will go to parts of the plant were it is needed at that time.
