شرح ساينس الصف الخامس الابتدائي لغات - الفصل الدراسي الأول
شرح ساينس خامسة ابتدائي - ترم أول

لينك تحميل الملزمة
https://drive.google.com/file/d/10UzR3D1VpBm4VwdTe1TrVPNPjcz9J55r/view?usp=sharing

لينك تليجرام
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In This Lesson:
3. Leaves:

► They contain chlorophyll, which gives them their green color.
► Chlorophyll captures (absorbs) energy from the sunlight which allows carbon
dioxide to combine with water to make food for the plant.
► The air that plant needs move into the leaves through tiny openings called
stomata.

Stomata
They are pores on the surface of plant's leaves that allow gases to move into and out of the plant.


• Function of the plant leaves:
▌Leaves make food for the plant through photosynthesis process.

There are many kinds of leaves such as:
1. Narrow leaves (look like needles) such as pine trees.
2. Flat and wide leaves

Photosynthesis process
How does photosynthesis process occur in plant leaves?

▼Chlorophyll absorbs energy from sunlight.
▼Green leaves use the light energy from the Sun to combine the carbon dioxide from the air with water.
▼Leaves manufacture (produce) :
1. Nutrients (such as sugars, starches, fats and proteins) that the plant needs to survive..
2. Oxygen gas that animals and people need to breathe.
►As the photosynthesis process is completed inside the leaves, there are tubes called phloem that transport the food materials downward, from the leaves to the other parts of the plant.
 
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