Ch. 9 Lesson 1What is the structure of

Earth?

4 layers of Earth

The Structure of Earth's Interior [01:32]

Another Structure of the earth animation

crustoutermost, thinnest

layer

continental crust oceanic crust

made of granite- incl. continents

made of basalt- incl. ocean floor-

6-11 km thick

continental rise= beginning of oceanic

crust

mantle

solid hot rock- can flow like

liquid

top part + crust

lithosphere

Structure of the Earth animation-Shows currents in mantle

core-center

made mostly of iron

2 parts:magnetic

field

outer core-liquid

(flows in currents)

inner core-solid

The Four Layers of the Earth's Interior: Inner Core, Outer Core, Mantle, and Crust [01:16]

Ways scientists study Earth’s interior

1. study mantle material from cracks

2. measure earthquake vibrations-

seismograph3. test materials to see how

respond to heat & pressure

The Mantle: The Asthenosphere, Upper Mantle, and Lower Mantle [02:29]

Online Quiz

coreEarth’s center

crustmade of granite or

basalt

coremade mostly of

iron

crustoutermost, thinnest

layer

mantlesolid hot rock that

can flow like liquid

corecreates Earth’s magnetic field

mantlebiggest layer of

Earth

mantle + crusttogether form

lithosphere

coreinner part is solid

continental crustincludes North America, South

America and Asia

The Earth Bowl• The homework monitor will need to get a tray which

contains the following: A plastic baggie, with graham

cracker.Nilla wafer cookies

A container of black cherry Jell-O

A container of lemon Jell-OA spoonA bowl

DO NOT TOUCH ANY OF THE MATERIALS AFTER YOU HAVE RECEIVED THEM. WAIT UNTIL I

EXPLAIN WHAT TO DO.

Steps to Making the Layers of the Earth!1) Put marshmallow in the bottom of the cup.

2) Next, lemon Jell-O and put it in the bowl.

3) Then, put black cherry Jell-O on top of the lemon Jell-O.

4) Last, you will need the plastic baggie containing graham crackers. Break the graham crackers up in the bag. DO NOT POUND TOO HARD! YOU DON’T WANT THE BAG TO BREAK! Sprinkle the crumbs on top of the black cherry Jell-O.

You have now made the Layers of the Earth.

*The Crust (graham crackers)*The Mantle (black cherry)* The Outer Core (orange)* The Outer Core (orange)

* The Inner Core (marshmallow)

Draw a picture of it in your notebook, labeling it with the

name of the layer and the ingredient.