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.