Tuesday 5/17/11 The Earth has Layers Date Activity Page 5/17 Earth Has Layers 3 Song 5/17 Layers of...
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Transcript of Tuesday 5/17/11 The Earth has Layers Date Activity Page 5/17 Earth Has Layers 3 Song 5/17 Layers of...
Tuesday 5/17/11
The Earth has Layers
Date Activity Page
5/17 Earth Has Layers 3 Song
5/17 Layers of Earth Assign.
Content Objective
1. We will identify several layers of Earth and learn a few characteristics of each.
Language Objectives
1. We will learn about Earth’s layers through a slide show, a song and a reading assignment.
Earth’s Layers
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
The CrustUnder the Continents-Continental
Under the Ocean-Oceanic
Oceanic Crust
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
Made of basalt-heavy dense rock
It is the crust under the oceans
5 km (3 mi) to 10 km (6 mi) thick
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
Continental CrustGranite is lighter and less dense
Granite continents sit on top of basaltic crust
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
Mantle
5-40 kilometers below the surface
Asthenosphere is the “soft” layer under the lithosphere
Lithosphere is crust + uppermost mantle
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.
CoreInner CoreOuter Core
Solid only because of
intense pressure
Liquid, rotating around solid inner core
Three main layers make Earth’s interior: the crust, the mantle, and core. Each layer has its own conditions and materials.