Plants Expirment

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 celey

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- Romaisa

Water helps a plant by transporting important nutrients through the plant. Nutrients are made from the soil and used by the plant. Without enough water  plants will not live. Water helps a plant stand and water carries the sugar that plants need and other nutrients. Water is very important to plant growth.  Their body needs water to keep hydrated. Water keeps the plant moist, flexible, and helps the plant make its own food.

Part 2 - How they absorb water-Akshara

When a water molocule escapes out into the atmosphere, through a stoma, it pulls the water molecule below it to take its place. That molecule will then pull the molecule below it. This will contiue on and on, until it reaches the roots. This process of pulling each other is called cohesion. Due to cohesion, water molecules stick to each other forming an endless chain. Plants access water through the soil. The roots are the transportation system to get the water from the soil and to the parts of the plant where it is needed. The roots branch into smaller and smaller roots, and the smallest roots are called root hairs. These root hairs absorb water into the root system, which then takes the water to the rest of the plants.