1 / 9

Layers of the Earth

Layers of the Earth. Ms. Wood. 4 layers. Crust Mantle Outer core Inner core. Inner Core. Solid Dense ball of solid metal (definition) Made of iron and nickel 2,000 – 5,000 degrees Celsius (as hot as the surface of the sun) Between 5150 km and 6371 km below surface of the Earth.

piper
Télécharger la présentation

Layers of the Earth

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Layers of the Earth Ms. Wood

  2. 4 layers • Crust • Mantle • Outer core • Inner core

  3. Inner Core • Solid • Dense ball of solid metal (definition) • Made of iron and nickel • 2,000 – 5,000 degrees Celsius (as hot as the surface of the sun) • Between 5150 km and 6371 km below surface of the Earth

  4. Outer Core • Liquid • Molten metal that surrounds inner core (definition) • Made of iron and nickel • 2,000 – 5,000 degrees Celsius (as hot as the surface of the sun) • 2,900 km to 5150 km below the surface of the Earth

  5. Mantle • Solid layer of hot rock (definition) • Lithosphere – uppermost part of the mantle; 109 km thick • Asthenosphere- layer of mantle below lithosphere that is soft and flows slowly • Solid mantle below asthenosphere

  6. Mantle cont. • Composed of silicon, oxygen, iron, and magnesium • Starts at 5 -40 km below surface; extends to 2,900 km • 2,200 degrees Celsius

  7. Crust • Layer of rock that forms Earth’s outer skin (definition) • Thinnest under the ocean and thickest under mountains • Two types: • Continental • Oceanic

  8. Crust continued • Between 5 km and 4 km thick/deep (avg 32km) • Composed of: • Oxygen • Silicon • Aluminum • Calcium • Iron • Sodium • Potassium • Magnesium

  9. Earth’s Layers Info • As you get deeper into the Earth, the pressure and temperature increase • Geologists – scientists who study the forces that make and shape Earth • Magnetic field – • Currents in liquid outer core force inner core to spin • This creates a bar magnet • Magnetic poles are near geographic poles, but aren’t the same • This is how a compass works

More Related