Grade 7 Science Unit 4: The Earth’s Crust

Slides:

Advertisements

Similar presentations

Inside the Earth.

Advertisements

The earth’s structure. Earth’s Internal Structure: Compositional Layers.

Structure of the Earth.

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.

Earth Layers The Earth is divided into four main layers. *Inner Core

Earth’s Core By: Diego Gonzalez.

Layers of the Earth.

Earth Layers. Inner Core Made mostly of iron and nickel Dense ball of solid metal due to intense pressure Very hot and very dense 1,216 km thick.

Plate Tectonics.

The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood.

Journey to the Center of Earth Layers of the Earth Crust Mantle Outer Core Inner Core.

The Layers of the Earth!. Earth Layers The Earth is divided into four main layers. *Inner Core *Outer Core *Mantle *Crust (Lithosphere)

Composition (What is it made of?) Divided into 3 layers: Crust Mantle Core.

EARTH SCIENCE. What to expect  Earth  Its layers  How they behave  How new mantel is created.

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

Inside the Earth The Geosphere.

Earth’s layers core, mantle, crust. CORE Corecenter of earth; divided into outer core and inner core.

Structure of the Earth. What are the layers of the Earth  Crust  Thin layer of rock  Surrounds Earth like a shell surrounds an egg  Two types of crust.

TEKS: 6.10A. Inner Core  Thickness:  Composition:  Temperature:  Interesting Fact(s): 1,250 km Solid Fe 6,000°C The deepest, most dense layer in.

Layers of the Earth. ► ► Atmosphere ► ► Crust (continental and oceanic) ► ► Mantle ► ► Outer core ► ► Inner core.

Mrs. Degl1 Each layer has a different thickness. Mrs. Degl2 Oceanic Crust is thinner than Continental Crust Oceanic Crust Continental Crust.

The Inner Core The deepest layer in Earth is the inner core. It is located at the center of the Earth because it contains the densest material of all.

LAYERS OF THE EARTH.

The Layers of the Earth!.

Summary of the Layers of the Earth,

Earth's Interior Notes.

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

EARTH’S LAYERS.

Layers of Earth.

Earth's Interior Notes.

The Layers of the Earth!.

Earth Part 2 G. Yannakoulias.

Journey to the Center of the Earth Notes

Journey to the Center of Earth

Unit 2: Geosphere Part 1 Lithospheric Plates, Folds, Faults, Earthquakes, Volcanoes, Tsunamis, etc.

Earth’s Inner Structure

Layers of Earth.

Earth’s Layers.

Earth's Interior Notes.

Inside the Earth.

Earth’s Structure.

The Layers of the Earth!.

Structure of the Earth.

Earth’s Layers.

A new Paradigm… Plate Tectonics

Inside the Earth.

Earth's Interior Notes.

Walk Around Notes!.

Earth’s Interior.

Earth's Interior Notes.

Earth’s 4 main Layers Crust Mantle Outer Core Inner Core.

Earth's Interior Notes.

Earth's Interior Notes.

The Fiery Earth Earth’s Interior.

Inside the Earth.

Earth’s Layers.

The Layers of the Earth!.

The Layers of the Earth!.

Crust! Thickness The crust is the thinnest and least dense layer.

Layers of the Earth.

Layers of the Earth.

Inside the Earth.

Earth Structure Notes.

Layers of the Earth Brown Blue.

Earth's Interior Notes.

The Layers of the Earth!.

The Layers of the Earth!.

Claremont High School Physical Science

Inside the Earth.

Inside the Earth.

Presentation transcript:

Grade 7 Science Unit 4: The Earth’s Crust Structure of the Earth

A Model of the Earth crust mantle Inner core Outer core

1. Inner core Deepest and hottest layer of Earth Made mostly of iron and nickel It is solid

2. Outer core It is liquid Made of liquid iron and nickel Very hot

3. mantle Largest layer Upper part is made of solid rock while the lower 10% is molten. This gives the mantle a “plastic-like” appearance.

4. crust Found outside the Earth A thin layer of solid rock Where valuable rocks and minerals are found

Depth varies from 5-70 km It is thinner under the oceans (oceanic crust) and thicker under the continents (continental crust).

The oceanic crust is mostly basalt while the continental crust is mostly granite. The crust is broken into pieces called plates which float on the mantel and are always moving.

How do we know? Technologies that are used to gather info... Satellite Imaging

Seismographs

Remote sensing

Magnetometers

Core Sampling