life processes of plants

1. LIFE
PROCESSES OF
PLANTS
Natural science year 4

2. PLANTS NEED:
SUNLIGHT
 WATER
CARBON DIOXIDE
MINERAL SALTS

3. SENSITIVTY
PLANTS REACT TO:
LIGHT
WATER
CONTACT

4. NUTRITION
 Plants made their own ____________
 Plants perform the process of _________________
 Plants _______________ : they absorb oxygen and release carbon dioxide
 Plants stored the substances in the _____________ and the ___________
 Plants release _________________: oxygen, carbon dioxide and vapour
FOOD
PHOTOSYNTHESIS
RESPIRE
FRUITSROOTS
WASTE

5. Plants make their own ________ by the
____________________
FOOD
PHOTOSYNTHESIS
Videos:
https://www.youtube.com/wa
tch?v=D1Ymc311XS8
https://www.youtube.com/wa
tch?v=aDn5RMbNHwg
https://www.youtube.com/wa
tch?v=UPBMG5EYydo

6. ASEXUAL
REPRODUCTION
Stolons
Bulbs
Rhizomes
Tubers

7. SEXUAL
REPRODUCTION
Stamens produce pollen in the anthers.
The pistil contains the ovary and the stigma.
Stamens are the male reproductive organs.
The pistil is the female reproductive organ.

8. SEXUAL
REPRODUCTION
The Four stages of plants
reproduction:
- Pollination can be by ___________
or by _____________
- The fertilised ovule becomes a
______
- The pistil becomes the __________
- The seed opens and becomes a
new __________ (Germination)
insects wind
seed
fruit
plant

9. CROP FARMING
Farmers sow seeds

10. CROP FARMING
Farmers water the plants
and fumigate them to
avoid insects.

11. Stages of farming

12.  Irrigated crops
Dry crops
TYPES OF CROPS