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شرح ساينس الصف الخامس الابتدائي لغات - الفصل الدراسي الثاني شرح ساينس خامسة ابتدائي - ترم ثاني لينك تحميل الملزمة https://drive.google.com/file/d/1S4p9... 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 interact with take in carbon dioxide gas from air and biosphere give out oxygen gas to air. Geosphere interacts with biosphere. During photosynthesis process, soil provides nutrients for plants roots. 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. بالتوفيق مستر احمد الباشا