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Ch. 1.1 Earth’s Interior. A. The Science of Geology 1. Geologist -- scientists studying the forces that make and shape planet Earth. Study Rock for- a)

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Presentation on theme: "Ch. 1.1 Earth’s Interior. A. The Science of Geology 1. Geologist -- scientists studying the forces that make and shape planet Earth. Study Rock for- a)"— Presentation transcript:

1 Ch. 1.1 Earth’s Interior

2 A. The Science of Geology 1. Geologist -- scientists studying the forces that make and shape planet Earth. Study Rock for- a) chemical, physical properties b) mapping location c) describe landforms and features d) clues to Earth’s history 1. Geologist -- scientists studying the forces that make and shape planet Earth. Study Rock for- a) chemical, physical properties b) mapping location c) describe landforms and features d) clues to Earth’s history

3 B. Studying Surface Changes 1. What causes Earth’s surface to change? a). Constructive Forces Build up mountains and landmasses Ex: island formation b). Destructive Forces Wear away mountains and other features on the surface Ex: water and/or wind 1. What causes Earth’s surface to change? a). Constructive Forces Build up mountains and landmasses Ex: island formation b). Destructive Forces Wear away mountains and other features on the surface Ex: water and/or wind

4 C. Finding Indirect Evidence 1. S eismic waves a). study how they travel through Earth b). Speeds, paths, data reveals layers of Earth

5 Temperature… increases And Pressure… a force pushing on a surface or area… increases as you go deeper inside Earth D. A Journey to the Center of the Earth

6 3 Layers to the Earth 1.Crust 2.Mantle 3.Core a)outer core b)inner core

7 1. The Crust Outer most layer Thinnest layer -- ranging from km Continental crust granite Oceanic crust basalt Outer most layer Thinnest layer -- ranging from km Continental crust granite Oceanic crust basalt

8 2. The Mantle Located beneath the crust Is about 2,900 km wide A layer of hot rock Has 3 layers Lithosphere means stone rigid layer Asthenosphere means weak Soft, tar-like Lower Mantle solid

9 a). Outer Core Beneath the mantle molten iron and nickel a thick liquid movements create Earth’s magnetic field Beneath the mantle molten iron and nickel a thick liquid movements create Earth’s magnetic field 3. The Core is divided into 2 sections:

10 b). Inner Core Beneath Outer Core A dense ball of solid iron and nickel

11 E. Earth’s Magnetic Field Earth’s outer core spins around a solid inner core of molten iron that creates a magnetic field. Earth’s outer core spins around a solid inner core of molten iron that creates a magnetic field.


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