In this article we shall discuss about "How do Plants Grow" ( Class 5, Science - Chapter 1) Questions and Answers for kids. We shall try to understand the intricate processes that make plants flourish. From absorbing sunlight to drawing nutrients from the soil.
Plants are very useful for human life, producing oxygen through photosynthesis and serving as a primary food source. They also offer medicinal compounds crucial in healthcare. Trees provide wood and fibers for construction, furniture and textiles for our daily needs. Their roots stabilize soil to prevent soil erosion.
The process of reproducing Once own kind is called reproduction.
The lower branches of the jasmine plant are so bent that their lower parts are buried under the soil. New plants grow from these buried parts.
Plants can grow from roots through a process called "vegetative propagation". Some plants can send out special shoots or structures from their roots that can grow into new plants.
Plants, like strawberries, can grow new ones without seeds. They send out special stems from their roots called "runners." When these touch the ground, they make new plants. So, instead of using seeds, some plants use their roots to grow more of themselves.
Germination is the process where a seed transforms into a baby plant. When a seed gets the right conditions like water, weather, and air, it wakes up and starts growing. First, a tiny root comes out, anchoring the seed. Then, a shoot pushes up, carrying the baby plant above the soil. As it grows, leaves unfold, and the plant begins its journey to become big and strong.
The dispersal of seeds is a natural way of spreading seeds of plants. When seeds travel away from their parent plant, they have a better chance of growing in new places. There are different methods of seed dispersal:
Wind Dispersal: Some seeds are light and have structures like fiver or wings which allow them to be carried by the wind. Dandelion seeds are an example of wind dispersal.
Animal Dispersal: Some seeds have hooks or Velcro-like structures that attach to fur or feathers. Burrs, like those from burdock plants, stick to animal fur and get carried to new spots.
Water Dispersal: Seeds can float on water. Coconuts, for instance, have a tough outer shell that helps them float and travel across oceans to find new places to grow.
Explosive Dispersal: Certain plants have seed pods that burst open when mature, shooting seeds away. Peas and touch-me-not plants are examples; their seeds pop out when the pods burst.
| Kharif crops | Rabi crops |
|---|---|
| i) Crops are sown in the month of June-July | i) Crops are sown in the month of October- November |
| ii) Crops grow in hot and wet condition. | ⅱ) Crops grow in cold and dry condition. |
| iii) Crops are harvested during September - October. | iⅱ) Crops are harvested during march-April. |
| Eg : Paddy, Maize, Jowar, etc. | Eg : Wheat, gram, pea, mustard, etc. |
i) The selection of the crop should be made keeping in mind the type of soil available in that particular area.
ii) The soil should be well prepared.
iii) Manure and chemical fertilisers should be added to the soil in sufficient quantities to make it more fertile.
iv) Good quality seeds should always be used.
v) Crops should be protected from birds, insects, rats etc.
vi) Pesticides, insecticides and fungicides must be sprayed to protect crops from pests, insects and other disease-causing agents.
vii) Weeding should be done regularly.
The process through which plants reproduce by their body parts is called vegetative propagation.
Bryophyllum, begonia.
Potato, Ginger
Rose plant, china rose plant.
Sweet potato, Radish, Carrot, etc.
Plants produce plenty of seeds as some of them are eaten by birds and animals and some of them are damaged before germination.
The process by which seeds of a parent plant are scattered away from the parent plant is called dispersal of seeds.
Dispersal of seeds ensures that seedlings do not grow too close to each other and plants will not have to struggle hard for the limited supply of water, nutrients and sunlight.
