| You are here: Almanahj Website ⇒ American curriculum ⇒ 10th Grade ⇒ Geology ⇒ Term 1 | ||
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Worksheet about The Earths Surface | ||
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| Subject: Geology | ||
| 10th Grade | ||
| Term 1 | ||
| Year: 2023/2024 | ||
| Size: 1.8MB | ||
| Number of clicks: 72 | ||
| Publish date:November 22, 2023 | ||
| Added by: Eman | ||
| Last download date: 2024-09-06 20:21:14 | ||
| Updated by: Eman9966 on 2023-11-23 16:20:04 | By: theodor Cecilia R, Bernal | |
| File info: Earth's surface is the outermost layer of our planet, covering about 71% of its surface. It is a dynamic and ever-changing environment, shaped by a variety of natural forces, including internal tectonic processes, weathering and erosion, and biological activities. Layers of the Earth's Surface The Earth's surface is composed of several distinct layers, each with its own unique characteristics: Crust: The crust is the outermost layer of the Earth, made up of solid rock. It is about 30 to 40 kilometers thick and is divided into two main types: continental crust and oceanic crust. Continental crust is thicker and less dense than oceanic crust, and it forms the continents. Oceanic crust is thinner and denser than continental crust, and it forms the ocean floor. Mantle: The mantle is the middle layer of the Earth, made up of hot, molten rock. It is about 2,900 kilometers thick and is divided into two main zones: the upper mantle and the lower mantle. The upper mantle is less viscous than the lower mantle, meaning that it is able to flow slowly. This slow flow of the upper mantle is responsible for plate tectonics, the movement of Earth's tectonic plates. Core: The core is the innermost layer of the Earth, made up of iron and nickel. It is about 2,890 kilometers thick and is divided into two main parts: the outer core and the inner core. The outer core is a liquid, while the inner core is solid. The rotation of the outer core is thought to generate Earth's magnetic field. Features of the Earth's Surface The Earth's surface is incredibly diverse, with a wide variety of landforms and features. Some of the most notable features include: Continents: Continents are the large, landmasses that make up about 29% of Earth's surface. They are separated from each other by oceans, and each continent has its own unique topography, climate, and ecosystems. Oceans: Oceans are the vast bodies of water that cover about 71% of Earth's surface. They are home to a diverse range of marine life, and they play an important role in regulating Earth's climate. Mountains: Mountains are landforms that rise high above the surrounding terrain. They are formed by a variety of geological processes, including uplift, erosion, and volcanic activity. Mountains play an important role in influencing climate, and they are home to a variety of unique ecosystems. Rivers: Rivers are flowing bodies of fresh water that drain the land and carry sediments to the oceans. They are essential for providing water for human consumption, agriculture, and industry. Deserts: Deserts are regions that receive very little rainfall and have extreme temperatures. They are home to a variety of plants and animals that have adapted to the harsh conditions. Importance of the Earth's Surface The Earth's surface is essential for life on our planet. It provides us with the resources we need to survive, including water, food, and shelter. It also regulates our climate and protects us from harmful radiation from the sun. Understanding the Earth's surface and its features is crucial for managing our resources, mitigating the impacts of human activities on the environment, and ensuring a sustainable future for our planet. | ||
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