Plants: Parts and Their Functions Part-1 FOR CLASS IV Vivek Singh Special Educator Simplified Science For All

1. Plants: Parts and Their
Functions
Part - 2
FOR CLASS IV
By- Vivek Singh

2. Leaves
• They produce food of the plant.
• They contain a green substance called
chlorophyll.
• The process of making food with the
help of sunlight, water, carbon dioxide
and chlorophyll is called
Photosynthesis.

3. Photosynthesis

4. • Plants get rid of excess water in the form
of water vapour from the surface of
leaves. This is known as Transpiration.

5. leaf structure
• petiole: it joins the blade to the stem.
• blade: it is the flat part of the leaves.
– It has veins. Veins carry water and
minerals.
– It has stomata: they are tiny pores that
the plant uses for respiration.

6. Transpiration

8. The flower
• Main parts of the flower are-
- sepals
- petals
- stamens
- pollen grains
- pistil

9. Diagram of a flower

10. • The outer most circle of the flower is
made of sepals.
• Sepals are generally green in colour.
• Sepals holds the petals.
• Petals are mostly brightly coloured to
attract in insects.
• Within the petals stamens are present.

11. • Stamens contains a yellow dust called the
pollen grains.
• The inner most part of the flower is called
the pistil.
• In the flower takes place the reproduction
of the plants.
• The flower makes fruit and seeds.

12. Seeds

13. • Scattering of seeds away from the mother
plant is called dispersal of seeds.
• Dispersal of seed is important to reduce
competition for water and other nutrients.
• When a seed gets proper air, water, and
heat, it grows into a new plant. This process
is called germination.

16. Assignments
• Draw well labelled diagram of-
1. Plant
2. Flower
3. Leaf
5. Discuss the difference between root and leaf with
your parents.
4. Search the link in Google to get video
• https://www.youtube.com/watch?v=l6FrqsvVS7k

17. Resources
• https://www.google.com/imgres?imgurl=https%3A%2F%2Fpreviews.123rf.com%2Fimages%2Folivierl%2Folivierl1108%2Folivierl110800126%2F10263201-bamboo-
green-plant-stems-background-with-slight-inward-perspective-over-black.jpg&imgrefurl=https%3A%2F%2Fwww.123rf.com%2Fphoto_10263201_bamboo-green-
plant-stems-background-with-slight-inward-perspective-over-
black.html&tbnid=tjGvF9uyClzJyM&vet=12ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQMygmegQIARBq..i&docid=dMjBjerWLoRwFM&w=1300&h=866&q=stems%20of
%20plant&ved=2ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQMygmegQIARBq
• https://www.google.com/imgres?imgurl=https%3A%2F%2F2.bp.blogspot.com%2F-TGiC2chPbxo%2FV4p9FQm8vfI%2FAAAAAAAAZkU%2FZiqgFtKH6WgYaTr-
Z_WFdoS0rgeBLoxWACLcB%2Fs1600%2Fhorsetail-
stems.jpg&imgrefurl=http%3A%2F%2Flifeofplant.blogspot.com%2F2011%2F01%2Fstems.html&tbnid=vrsAWFyxIs3BnM&vet=12ahUKEwjfxLve_eroAhW5wnMBHW3QA
HcQMygKegUIARCYAg..i&docid=bm5r0-XrgE5hGM&w=700&h=521&q=stems%20of%20plant&ved=2ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQMygKegUIARCYAg
• https://www.google.com/imgres?imgurl=https%3A%2F%2Fsites.google.com%2Fsite%2Felps301plantstructures%2F_%2Frsrc%2F1486330942892%2Fhome%2Fgrowth%
2FStem.jpg&imgrefurl=https%3A%2F%2Fsites.google.com%2Fsite%2Felps301plantstructures%2Fhome%2Fgrowth&tbnid=jibMDF0N-
8Xl4M&vet=12ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQMygDegUIARCJAg..i&docid=ETPb5ehkHTQ-
hM&w=500&h=332&q=stems%20of%20plant&ved=2ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQMygDegUIARCJAg
• https://www.google.com/search?q=stems+of+plant&tbm=isch&ved=2ahUKEwjRtLTQ_eroAhWI1XMBHQplAqgQ2-
cCegQIABAA&oq=stems+of+plant&gs_lcp=CgNpbWcQAzIECCMQJzICCAAyBggAEAUQHjIGCAAQBRAeMgYIABAFEB4yBAgAEBgyBAgAEBgyBAgAEBgyBAgAEBgyBAgAEB
hQobYBWKG2AWDqwQFoAHAAeACAAecBiAHnAZIBAzItMZgBAKABAaoBC2d3cy13aXotaW1n&sclient=img&ei=t0eXXpH9E4irz7sPisqJwAo&bih=625&biw=1366
• https://www.youtube.com/watch?v=l6FrqsvVS7k
• https://www.youtube.com/watch?v=uUH8iAanREY
• https://www.google.com/search?q=flower+of+plant&tbm=isch&ved=2ahUKEwjfxLve_eroAhW5wnMBHW3QAHcQ2-
cCegQIABAA&oq=fof+plant&gs_lcp=CgNpbWcQARgCMgYIABAHEB4yBggAEAcQHjIGCAAQBxAeMgYIABAHEB4yBggAEAcQHjIGCAAQBxAeMgYIABAHEB4yBggAEAcQHjI
GCAAQBxAeMgYIABAHEB46CAgAEAgQBxAeOgIIAFDo7iBY6v0gYMqaIWgAcAB4AIABmgKIAeMIkgEFMC41LjGYAQCgAQGqAQtnd3Mtd2l6LWltZw&sclient=img&ei=1E
eXXt-KMbmFz7sP7aCDuAc&bih=625&biw=1366#imgrc=utC8J14VRW8cjM
• https://www.google.com/search?q=buds+of+a+plant&tbm=isch&ved=2ahUKEwicn7vZgOvoAhUBGnIKHeXxCTgQ2-
cCegQIABAA&oq=buds+of+a+plant&gs_lcp=CgNpbWcQAzICCAA6BggAEAcQHjoICAAQCBAHEB46CAgAEAcQBRAeUIuUGFj5sRhg_rsYaABwAHgAgAHwAYgBqg6SAQUwLj
guMpgBAKABAaoBC2d3cy13aXotaW1n&sclient=img&ei=70qXXtzrJYG0yAPl46fAAw&bih=625&biw=1366#imgrc=hKTCBRK1-RKsBM

18. THANK YOU