CATALYST—HW DUE TOMORROW1. Where do hot things go?2. How do hot molecules move?3. How far are hot molecules apart?4. Are hot molecules like a solid liquid or

gas?5. Where do cold things go?6. Are cold things like a solid liquid or

gas?7. Why do cold things do that?8. What is density?9. What is the formula for density?

LAYERS OF THE EARTH

http://www.brainpop.com/science/earthsystem/earthsstructure/

PLAY DOUGH EARTH!

Every set of four will get one Earth and one piece of dental floss

One person will cut the Earth in half with dental floss—two partners will share one half and two partners will share the other half

Look at the layers of the Earth—see if you and your partner can name all of them.

HOW MANY LAYERS ARE THERE?

There are four layers of the Earth:- the crust- the mantle- the outer core- the inner core

DRAW AND LABEL THE EARTH YOU SEE IN YOUR HAND

CRUST:

The crust is the thinnest

outer layer of the Earth

Connection Think, Pair, Share: If it is the top layer do you think it is the densest or least dense layer?

WHAT COULD WE COMPARE THE CRUST OF THE EARTH TO?

Example: It is similar to the peel of an apple in the sense that it is thin and covers the outside of the Earth

Think Pair Share—any other ideas?

WHAT DOES CRUST LOOK LIKE?

Anywhere you can see rock, you are seeing the crust of the Earth!!!

A lot of the crust is hard to see because it is covered by soil, rock and water

CRUST IS UNDER THE OCEANS AND ON THE LAND:

Crust is thicker beneath continents Crust is thinner beneath oceans or rivers Why does that make sense?

Mountains are parts of the crust that stick out (made of rock)

CRUST IS MOSTLY:

OXYGEN---- 47%

SILICON– 28%

CRUST REVIEW:

Location: Temperature: Density: Made up of: Thickness:

LET’S GO DEEPER INTO THE EARTH

Peel Back your Play dough Layer! Now what layer are we on?

MANTLE:

The mantle is the thickest layer

located in the middle of the Earth

WHAT COULD WE COMPARE THE MANTLE OF THE EARTH TO?

Example: It is similar to the white part of an apple in the sense that it is the thickest part

Think Pair Share—any other ideas?

WHAT DOES MANTLE LOOK LIKE?

The Mantle is HOT

At this temperature the rock begins to melt making the Mantle thick and oozy!

Mantle is what bursts out of volcanoes

MANTLE REVIEW:

Location: Temperature: Density: Thickness:

LET’S GO DEEPER INTO THE EARTH

Peel Back your Play dough Layer! Now what layer are we on?

CORE:

The core is the hottest

located in the center of the Earth

Connection Think, Pair, Share: If it is the inner layer do you think it is the densest or least dense layer?

WHAT COULD WE COMPARE THE CORE OF THE EARTH TO?

Example: It is similar to the seeds or core of an apple in the sense that it is the center and the hardest/densest part.

Think Pair Share—any other ideas?

WHAT DOES CORE LOOK LIKE?

2 layers:

Liquid outer core

Solid inner core—hard, dense center– so much pressure that despite the hot temperature that would melt the rocks it stays solid.

THE CORE IS MOSTLY:

IRON----

NICKEL---

C0RE REVIEW:

Location: Temperature: Density: Made up of: Thickness:

CATALYST– HW ON DESK

1. What layer of the earth is densest?2. What is the difference between

inner and outer core?3. What layer of the earth is coolest?4. What is the core made of?5. What is the crust made of?

LAYERS OF THE EARTH FOLDABLE:

1. Make a foldable of your layers of the Earth.

1. Front: Crust, Mantle, Outer Core, Inner Core

2. On the inside include: Location: Temperature: Density: Made up of: Thickness:

MULTIPLE CHOICE PRACTICE

10 minutes to do it on your own 3 minutes to ask a friend for help

Check our work!

EXIT TICKET