The lesson is taken from class 5th Science book 'Living Science'. Entire chapter is covered in this ppt. This ppt will supplement the students' learning.

1. CLASS 5TH SCIENCE
CHAPTER-1
Plants: Increasing the Numbers
By Anamika Mishra (PRT)
Social Studies

3. New Plants from Seeds
Why does a plant produce seeds?

4. A seed and its parts
Seeds of plants like grams, peas and
beans have two seed leaves and are
called dicot seeds.
Seeds of some plants like maize, wheat
and rice have one seed leaf and are called
monocot seeds.

5. Seed Germination
Conditions necessary for seed
germination-
● Water (Moisture)
● Warmth (Sunlight)
● Air (Oxygen)

6. Dispersal of Seeds
Seed dispersal is the movement, spread or transport of seeds away from the parent plant.
https://media.tenor.com/images/44e7b46ca50b2d6f200c5f3f5c67b248/tenor.gif

7. Agents of dispersal
Dispersal is carried out by the wind, water, animals and by explosion of fruits.
Wind Water

8. Animals Explosion

10. New plants from other parts of plants
New plants also grow from certain other parts such as roots, stem and leaves of the
parent plant.

11. New plants growing from stem cuttings.
Hibiscus
Rose
Bougainvillea
From my Garden!

12. Oral Questions
1. The development of a seed into a seedling is called hibernation / budding /
germination.
1. Air / Moisture / Seed, water and warmth are necessary for germination of a seed.
1. Seeds of cotton are dispersed by water / wind / explosion.
1. Some plants like roses grow from root / leaf / stem cuttings.
Choose the correct answer.

13. Crops and Vegetables

14. Plants of one kind grown in a particular area or
region during a particular period are called
crops.
Crops grown from November to April are called
rabi crops or winter crops.
Examples: Wheat, gram.
Crops grown from June to October are called
kharif crops or monsoon crops.
Examples: Rice, maize jowar and bajra.

15. Soil and crops
Rice and Jute
Wheat, Jowar and Bajra
Cotton

16. Tea plants need moist soil and grow on the slopes of hilly areas like Assam and
Darjeeling.
Coconut trees grow in coastal areas like Kerala and Goa.
Maize grows well in the dry soil of the plains or hills.
Onion and groundnut need well-drained, sandy soil.

17. Agriculture
● The practice of growing plants on a large scale is called agriculture.
● Manure is added to increase production.
● Fertilizers like urea, super, sulphate etc.
is added to the soil.
● However, overuse of fertilizers can be
harmful for the soil as well as the crops.

18. For a good and healthy crop, we must-
● Use healthy and ripe seeds for sowing.
● Prepare the soil properly.
● Add manure or fertilizers to the soil.
● Irrigate the soil.
● Use insecticides and pesticides.

19. Protection of crops and storage of seeds
We need to protect our crops against
● Grazing animals like cows and goats,
● Pests such as grasshoppers, caterpillars
● Diseases
After harvesting, grains need to be stored in sealed
containers, protected against moisture. They have to
be kept safe from rats, moles, birds etc.