How do Plants Grow (Class 5-Science-Chapter 1) for Kids
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How do Plants Grow (Class 5-Science-Chapter 1) for Kids
How do Plants Grow Class 5 - Science-Chapter 1
Questions and Answers
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.
1. Life-supporting : That which supports life. 2. Fibre : Any of the thread-like parts forming plant or artificial material. 3. Reproduction : The process of producing young ones. 4. Vegetative propagation : Producing plants through body parts of parent plant. 5. Parent plant : Plant that produces young plants. 6. Explosion : Sudden and violent bursting. 7. Pesticides : Chemicals used to kill pests. 8. Insecticides : Chemicals used to kill insects. 9. Fungicides : Chemicals that destroy fungi. 10. Weeding : Removal of unwanted grass and plants
Remember the Points
♦ Plants are very useful to us. ♦ All living beings have the capacity to produce their own kind. ♦ Plants can reproduce through leaves, stems, roots and seeds. ♦ Flowers produce fruits, which have seeds inside them. ♦ The scattering of seeds from the parent plant through various means is called dispersal. ♦ Seeds get dispersed by water, animals, wind and explosion. ♦ Plants grown in a large quantity to provide food and other useful substances are called crops. ♦ In our country, crops which are grown in summer are called Kharif crops and those which are grown in winter are called Rabi crops. ♦ We should follow certain steps to grow healthy and high-yielding crops.
Answer the following questions:
How are plants useful to us?
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.
What do you mean by reproduction?
The process of reproducing Once own kind is called reproduction.
How does jasmine produce new plants?
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.
4. How do new plants grow from roots? Give an example.
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.
Explain what you understand by germination.
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.
What is dispersal of seeds? Give some examples.
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.
What is the difference between Kharif and Rabi Crops?
Differentiate between Kharif crops and 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.
How can healthy crops be grown?
The following steps should be taken to grow healthy crops:
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.
What is vegetative propagation?
The process through which plants reproduce by their body parts is called vegetative propagation.
Give examples of some plants which reproduce through leaves?
Give examples of some plants which reproduce through underground stem?
Give examples of some plants which reproduce through stem cutting?
Rose plant, china rose plant.
Give examples of some plants which reproduce through roots?
Sweet potato, Radish, Carrot, etc.
Why do plants produce a large number of seeds?
Plants produce plenty of seeds as some of them are eaten by birds and animals and some of them are damaged before germination.
Define dispersal of seeds.
The process by which seeds of a parent plant are scattered away from the parent plant is called dispersal of seeds.
Why do the plants need to disperse their 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.
Fill in the blanks with appropriate words:
1. Different plants reproduce in different ways. 2. A potato has small buds on it. These are called eyes. 3. Onion and ginger are underground stems. 4. The seed of the coconut is dispersed by water. 5. Crops should be selected as per the type of soil. 6. Pesticides, insecticides, and fungicides are chemicals which protect crops from pests, insects and disease-causing agents.
Write "T' for true and 'F' for false statements:
1. Hemp, cotton and jute are fibre crops. [ T ] 2. Rice and wheat are oil-producing crops. [ F ] 3. The seeds of balsam are dispersed by explosion. [ T ] 4. Rats and insects are beneficial for crops. [ F ] 5. Kharif crops are grown from November to April. [ F ] 6. We get most of our food from animals. [ F ]