What is the earth like inside?

Slides:

Advertisements

Similar presentations

Inside the Earth.

Advertisements

The Dynamic Crust Regents Earth Science. Seismic Waves and Earth’s Structure How can we tell that the outer core is liquid and the inner core is solid?

Planet Earth in Profile The Layered Interior. Objectives Explore evidence that helps explain Earth’s internal structure. Outline Earth’s internal layers.

Interior of the Earth. I. Morphology of Earth's Interior.

Pg. 25.  After Earth formed, radioactive elements decayed and heat was released  Caused melting of interior  Denser elements sank to core (iron and.

Earth’s Interior. The Zones of Earth’s Interior Much of our knowledge of the Earth’s interior comes from the study of earthquake (seismic) waves. Seismic.

A Layered Earth Solid inner core- 6,370 km deep Liquid outer core- 2,900 km deep Mantle – km deep Brittle crust- Surface to km.

MORISCO/WILLGING 2007 Layers of the Earth Characteristics of each of the Earth’s layers.

Inside the Earth.  At earth’s center is the inner core.  The inner core is composed of nickel and iron in solid form.  The depth from the surface is.

Seismic waves- Earthquake waves travel differently as they move through different materials Through some materials they move straight, while others will.

Lab 2: The Interior of the Earth Key Q: What is the interior of the Earth like?

Journey to the Center of the Earth

Inside the Earth.

Layers of the Earth.

Earth’s Layered Structure.  Crust  Mantle  Core.

What’s in there? How do we know its there? Why do we even care?

Earth on the Move Earth Structure & Plate Tectonics Notes.

What’s Inside?. The Earth’s Core – Almost as hot as the surface of the sun (due to radioactive decay) Escape of this inner heat drives geological activity.

Earth’s Inside Earth Pages Inside Earth Pages Interior.

Earth’s Interior Chapter 5 Section 1.

Earth’s Layers S6E5.a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition.

The Earth’s Structure A Journey to the Center of the Earth.

From RegentsEarth.com win.

What is Earth’s Structure?  If your first view of Earth were from space, what would it look like?

Created byMildred (who else?) $100 Page 10 More pg.10 Page 11 More pg.11 My Fault $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500.

Layers of the EARTH. Earth’s Layered Structure Layers Defined by Composition 8.4 Earth’s Layered Structure  Earth’s interior consists of three major.

The Earth’s Interior. Most of what we know is from geophysics.

Internal Structure of the Earth. Internal Structure (cont.)  Crust – the outer, hardest layer of the lithosphere; continental crust (mostly granite,

8.4: Earth’s Layered Structure

Earth’s Internal Processes

Layers of the Earth. The Earth’s Interior Most scientists agree that soon after Earth’s formation, Earth was a large ball of molten (melted) rock. As.

Structure of the Earth. Earth’s Structure  The Earth is made up of several layers with distinct properties:  Crust = outer layer  Mantle = middle layer.

Earth’s Interior. Crust Outermost layer Cool Brittle – hard and easily broken Shallow earthquakes occur here Floats on the mantle 2 types of crust  Oceanic.

I. Layers Defined by Composition 8.4 Earth’s Layered Structure  A) Earth’s interior consists of 3 major zones (chemical composition).

The Structure of the Earth

Earth’s Layers G 103. General Information -Iron,Oxyge, Silicon, & Magnesium - Deepest drill 12 km -Radius of Earth 6371 km - How do we know about the.

 Inner core, Outer core, Mantle asthenosphere, lithosphere, crust,

Earth’s Interior =mOSpRzW2i_4.

1. Crust- outermost layer of Earth’s interior that consists of solid rock.

Structure of the Earth.

Layers of the Earth Geology – study of planet Earth

Earth’s Interior EQ: Describe the different layers of the earth. Explain how scientist learned about these layers.

Earth’s Layers Aim= Which layer of Earth is the thinnest?

Layers of Earth.

A look inside the planet Earth

Earth’s Interior EQ: Describe the different layers of the earth. Explain how scientist learned about these layers.

Earth’s Layers.

Earth Structure.

Layers of Earth.

Earth layers and seismic waves

Inside the Earth.

Earth’s Structure.

Inside the Earth.

The study of the forces that change the Earth’s surface.

Inside the Earth.

Earth’s Interior.

8.4 Earth’s Layered Structure

Marine Science Unit 3: Geological Oceanography

Earths Interior and Layered Structure

EARTH’S LAYERED STRUCTURE

Inside the Earth.

Earthquakes! Created by Mildred (who else?).

A Journey to the Center of the Earth

Earth’s Interior Chapter 5 Section 1.

Do Now: Copy diagram and label

Earth’s Layers S6E5.a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition.

Layers of the Earth.

Inside the Earth.

Inside the Earth.

Presentation transcript:

What is the earth like inside? Earth’s Interior Notes What is the earth like inside?

The earth is made up of layers that formed from differences in density The earth is made up of layers that formed from differences in density. Let’s look at them…

Inner Core Outer Core The Core Discovered 1906 Solid iron & nickel. 1,200 km thick Density – 15 g/cm3 Discovered 1936 Outer Core Liquid iron & nickel. 2200C - 5000C. 2,250 km thick; Density – 10 g/cm3 Discovered 1926

Mantle (Lower & Upper) Made of Si, O, Fe, & Mg. 870C to 2200C. 2,900 km thick Density – 5 g/cm3

Upper Mantle - Asthenosphere Partly melted & plastic. 150 km thick Density – 3.5 g/cm3 Plasticity – the ability for a solid to flow like a liquid. Think of asphalt.

Moho The boundary between the mantle & the crust. Lithosphere The outer, hard part of the Earth

Continental Crust Oceanic Crust 30-50 km thick Granite High in Al, Mg, K, & Si Density – 2.7 g/cm3 Oceanic Crust 5 - 7 km thick Basaltic rock High in Fe, Mg, & Ca Density – 3 g/cm3

Discovering Earth’s Interior

How do we know what’s inside the earth? We use seismic waves to take an x-ray of it! Earthquakes Produce different types of seismic waves that can be detected far from the epicenter (origin).

Different Types of Seismic Waves… P-waves Fast, compressional waves that travel through solids & fluids. The denser the substance, the faster they travel. S-waves Slower, shear waves that travel through solids only. Lookie Here!

Shadow Zone An area where no seismic waves occur. S-wave No S-waves pass between 105˚ to 180˚ Shadow b/c they cannot go through a liquid Zone (outer core).

P-wave. No P-waves pass between 105˚ to Shadow. 140˚ P-wave No P-waves pass between 105˚ to Shadow 140˚. They are bent around this Zones area b/c of a change in velocity. See it in action!