Science experiment-rm 3

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.