Science Test

Crust

Rigid, rocky outer surface of Earth

Mantle

A rocky layer under the crust

Outer Core

Molten iron-nickel layer that surrounds inner core

Inner Core

Solid iron-nickel center of Earth that’s hot and has great pressure

Continental Crust

Thick parts of Earth’s crust not under ocean

Oceanic Crust

Thinner more dense parts of Earth’s crust located under oceans

Ocean

Large bodies of water on top of oceanic crust

Lithosphere

Made from both the crust and rigid upper part of upper mantle (Makes Tectonic Plates

Lower Mantle (Mesosphere)

Deepest parts of mantle that is semi-rigid

Asthenosphere

Lower part of upper mantle (Tectonic Plates sit on this layer)

How many layers does Earth have?

4

What’s the order of the outside planet?

Inner core, outer core, mantle, and crust

Whats the thickest layer?

Mantle

Whats the thinnest layer

The crust

Crust is made up of:

Less than 1%

Mantle is made up of

67%

Core is made up of

33%

The Earth’s crust is like the skin of an

apple

Crust is composed of plates on continents and ocean rest. They ……… over molten mantle

ride

Crust is part of the

lithosphere

2 Types of crust

Oceanic and Continental

The crust and upper layer of mantle together make up a zone of ……. brittle called Lithosphere

rigid

The ……. is divided into separate plates the moves slowly

lithosphere

The …. of the earth is broken into many piece called…… The plates “float” on the soft, semi-rigid…….

crust, plates, asthenosphere

Thickest layer of the earth 2900 km (Mantle)

1800 miles long

The hot….. rises then cools and sinks

magma

Conveyor belt for the…… plates

tectonic

…….: Molten (liquid) metal that is 8500 F degrees

Composition

Outer core state of matter has melted metals nickle and iron (….)

liquid

Outer core is located 1800 miles beneath the…..

crust