Grade 5 | Earth's Systems | Theme 3 - Concept 1 - Lesson 3 | Science

Описание: شرح ساينس الصف الخامس الابتدائي لغات - الفصل الدراسي الثاني
شرح ساينس خامسة ابتدائي - ترم ثاني

لينك تحميل الملزمة
https://drive.google.com/file/d/11QP1...

لينك تليجرام
https://t.me/mrahmedelbashagroup

In This Lesson:
1. Geosphere
It is the system that includes all the layers of Earth which are the crust, the mantle and inner and outer core.



• The word "Geo" means "Earth".
• This system contains:
Rocks.
Minerals.
Soil.
Landforms (such as mountains, valleys ... etc.)
Molten rocks inside Earth.


2. Hydrosphere
It is the system that includes all of the water on, under and above Earth.

• The word "Hydro" means "water".
• This system contains:
Oceans.
Seas.
Rivers.
Groundwater.
Glaciers.

3. Atmosphere
It is the system that includes all the gases that surround Earth.

• The word "Atmos" means "vapor".
• The atmosphere is usually called "air".
•Air (atmosphere) is a mixture of many kinds of gases such as :
Oxygen gas.
Carbon dioxide gas.
Nitrogen gas.

4. Biosphere
It is the system that includes all living organisms on Earth.

• The word "Bio" means "life".
• Biosphere contains:
Humans.
Animals.
Plants.

Earth's systems interact:
The following table represents some phenomena that show the interaction between the different four systems of Earth:

Interactions Phenomena Example
Hydrosphere interacts with geosphere. • Erosion of rocks by water.


• Formation of lakes.


Atmosphere interacts with biosphere. During photosynthesis process, plants take in carbon dioxide gas from air and give out oxygen gas which is important for respiration of all living organisms.
Geosphere interacts with biosphere. During photosynthesis process, plants roots absorb nutrients from the soil to make their own food.

 

\Biome
It is a large region of the world that has similar oil, climate, plants and animals (wildlife).


Examples of biomes:
Deserts. - Forests.
Rainforests. - Grassland.
Wetland.

Some characteristics of hydrosphere
Hydrosphere contains all the liquid, solid and gaseous water on Earth.
Nearly 71 percent (71%) of Earth is covered by water.

بالتوفيق
مستر احمد الباشا