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EVS: class III
Leaves
Parts of
Leaves
Uses of
Leaves
Vegetable
Spices and
Herbs
Medicine
Bowl and
Plates
Design and
Decoration
As a Roof
...
Leaves are important part of a plant. Plant needs leaves to breathe and
make food.
Leaves grow on stems of plants.
Differe...
Petiole
Base
Primary Vein
Leaf Margin Apex
Secondary Vein
Leaf Lamina or
Leaf Blade
Stomata
Leaf Blade :
All leaves have a flat surface called as Leaf Blade. The leaf blade is mostly
smooth.
Leaf Margin :
The edge ...
Leaves have pigment called
chlorophyll. It gives them the
green colour. It also helps leaf to
make their own food.
The gre...
Different plants have leaves of different
colours like Red, Orange, Purple and
Yellow.
Some plants like Mushrooms, Yeast a...
When the chlorophyll in leaves finishes, leaves dry up and fall down.
It is called Shedding of Leaves.
Some trees shed all...
Cabbage Swiss ChardRed CabbageSpinach
We eat some leaves as vegetables.
Coriander MintMethiLettuce
Tejpatta ParselyThymeBasil
Leaves like Tejpatta or Cinnamon are used as spices.
Leaves of Basil, Thyme and Parsley are use...
Leaves of Betel, Tulsi and Neem do have medicinal use.
Betel leaves are eaten for bad breath.
Juice of Tulsi leaves is ver...
Leaves of Dhak plant or Teak plant are used to make plates and bowls.
These plates or pattals and bowls or donas are dispo...
Leaves of Mango or Ashoka are used for making torans to hung them at
the doors during functions.
Powder of dry mehandi lea...
Leaves of coconut and palm tree are very long. They are used to make
roofs of houses.
Leaves of Khus tree are also used to...
Animals like Giraffe, Deer, Goat, Sheep, Elephant, Cow and buffalo eat
leaves of the trees.
Leaves are their basic food.
G...
Leaves should be left to rot in a pit mixed with some soil and water.
After few months they will turn into manure or compo...
Thank You!!!
http://theeducationdesk.com
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Environmental Science (EVS) : Leaves (Class III)

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EVS, Environmental Science
Leaves, Parts of a Leaf, Petiole, Stomata, Leaf Lamina, Photosynthesis, chlorophyll, Uses of Leaves

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Environmental Science (EVS) : Leaves (Class III)

  1. 1. EVS: class III
  2. 2. Leaves Parts of Leaves Uses of Leaves Vegetable Spices and Herbs Medicine Bowl and Plates Design and Decoration As a Roof Food for Animas Manure or Compost Photosynthesis Leaves Colour Leaves Shedding
  3. 3. Leaves are important part of a plant. Plant needs leaves to breathe and make food. Leaves grow on stems of plants. Different plants have different types of leaves. Leaves differ in size, shape, smell and colour. Some are big and some are small. Some leaves may be oval, round, pointed, etc. There are many leaves that are useful to us in different ways.
  4. 4. Petiole Base Primary Vein Leaf Margin Apex Secondary Vein Leaf Lamina or Leaf Blade Stomata
  5. 5. Leaf Blade : All leaves have a flat surface called as Leaf Blade. The leaf blade is mostly smooth. Leaf Margin : The edge of the leaf is known as Leaf Margin. Some leaves have smooth while some do have rough edges. Vein : Each leaf has some lines on its blade. These lines are called as Veins. Each leaf has one Primary Vein and many Secondary Veins. Petiole : The small leaf stem which is connected with plant stem is called as Petiole. Stomata : Tiny holes underside of the leaf are called Stomata. They help the plant to breathe.
  6. 6. Leaves have pigment called chlorophyll. It gives them the green colour. It also helps leaf to make their own food. The green leaves takes carbon dioxide from air. And combines with water and sunlight to make food for plant. This process is called Photosynthesis.
  7. 7. Different plants have leaves of different colours like Red, Orange, Purple and Yellow. Some plants like Mushrooms, Yeast and Fungi do not have chlorophyll. So they cannot make their own food. And they are not green in colour.
  8. 8. When the chlorophyll in leaves finishes, leaves dry up and fall down. It is called Shedding of Leaves. Some trees shed all their leaves once a year, mostly during winter. Some trees shed a few leaves throughout the year. Leaves also dry up when they don’t get enough water and sunlight. Gulmohor Tree in Summer Gulmohor Tree in Winter
  9. 9. Cabbage Swiss ChardRed CabbageSpinach We eat some leaves as vegetables. Coriander MintMethiLettuce
  10. 10. Tejpatta ParselyThymeBasil Leaves like Tejpatta or Cinnamon are used as spices. Leaves of Basil, Thyme and Parsley are used as herbs.
  11. 11. Leaves of Betel, Tulsi and Neem do have medicinal use. Betel leaves are eaten for bad breath. Juice of Tulsi leaves is very useful for cough. Neem leaves are very good for health. Betel Tulsi Neem
  12. 12. Leaves of Dhak plant or Teak plant are used to make plates and bowls. These plates or pattals and bowls or donas are disposable items. At some places people use banana leaf to serve food. Donas pattals Banana leaf
  13. 13. Leaves of Mango or Ashoka are used for making torans to hung them at the doors during functions. Powder of dry mehandi leaves are used to make beautiful designs on hands and feet. Mehandi Leaves Mango Leaves Ashoka Leaves
  14. 14. Leaves of coconut and palm tree are very long. They are used to make roofs of houses. Leaves of Khus tree are also used to make roofs of mud houses. Coconut leaves Palm leaves Khus leaves
  15. 15. Animals like Giraffe, Deer, Goat, Sheep, Elephant, Cow and buffalo eat leaves of the trees. Leaves are their basic food. Giraffe Goat Deer
  16. 16. Leaves should be left to rot in a pit mixed with some soil and water. After few months they will turn into manure or compost. Compost is rich in nutrients and used to make soil fertile. Raking Dry Leaves for composting Leaves in Pot with Water and Soil Compost Rich In Nutrients
  17. 17. Thank You!!! http://theeducationdesk.com

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