What are 3 ways in which the Earth differs from all other planets?

Earth’s Structure Video03/18/2013

S:

Table of Contents

Date Lecture/ Activity/ Lab Page2/25/13 Galactic Tour Essay2/26/13 Space Exploration Chapter 212/27/13 Artificial Satellites Chapter 212/28/13 Unit Test Space3/01/13 Correct Space Test3/18/13 Earth’s Structure Video

P, A & C: Video

Now that you’ve learned a bit about our Earth, write 3 sentences about 3 things you would like to learn about during this unit.

E:

Describe what you think the word “dynamic” means, and tell how the Earth is dynamic.

EduSmart: Earth’s Layers03/19/2013

S:

Table of Contents

Date Lecture/ Activity/ Lab Page2/25/13 Galactic Tour Essay2/26/13 Space Exploration Chapter 212/27/13 Artificial Satellites Chapter 212/28/13 Unit Test Space3/01/13 Correct Space Test3/18/13 Earth’s Structure Video3/19/13 EduSmart: Earth’s Layers

P & A : Watch EduSmart

C: Take Notes

Tell 3 new things you learned by watching EduSmart today.

E:

The Earth is formed much like an onion.

S: Consider an onion and an apple as models of the Earth. Discuss the advantages and limitations (disadvantages) of each.

Unit Vocabulary 03/20-21/2013

Unit Vocabulary 3/20-21/2013

•SA 39g sample of granite has a volume of 15cm3. What is the density of granite?

A 63.8g sample of basalt has a volume of 22cm3. What is the density of basalt?

Consider what you know about the density of the ocean basin (basalt) and the continental crust (granite), and tell whether the densities you calculated are reasonable.

Granite Basalt

Mass = 39g

Volume = 15cm3

Density =

mass / volume

Density =

39g / 15cm3 =

= 2.6 g/cm3

Mass = 63.8g

Volume = 22cm3

Density =

mass / volume

Density =

63.8g / 22cm3 =

= 2.9 g/cm3

Show your work:

Table of Contents

Date Lecture/ Activity/ Lab Page2/25/13 Galactic Tour Essay2/26/13 Space Exploration Chapter 212/27/13 Artificial Satellites Chapter 212/28/13 Unit Test Space3/01/13 Correct Space Test3/18/13 Earth’s Structure Video3/19/13 EduSmart: Earth’s Layers3/20/13 Unit Vocabulary

Inner Core

• SOLID metal• DENSE• HOTTEST layer• Center of Earth• Thickness = 1300 km• Temp = 5000 – 9000ºC

The solid iron-nickel ball of metal beneath the outer core.

P: Notes

FACT:The temperature of the inner core layer is more than the sun's surface.

Outer Core

• LIQUID layer• melted metal • located beneath the mantle• surrounds the inner core.• Thickness = 2250 km• Temp = 4000 – 5000ºC

The molten iron-nickel layer that surrounds the inner core.

FACT:Generates the earth's magnetic field.

Mantle

• thickest layer • contains 67% of the Earth’s mass.• large amounts of iron and magnesium• Semi-solid (high viscosity)• Thickness = 2900 km• Temp = 2000 – 3200 ºC

The mantle is the thick layer of hot, solid rock between the crust and the molten outer core.

FACT:About 70 percent of the earth's mass lies in the mantle.

Asthenosphere

• the soft layer of the mantle on which pieces of the Lithosphere move.(allows tectonic plates to move)

• Semi-solid rock that, like putty, flows very slowly. Temp = 1000-2000ºC

• approximately 250 Km thick.

The somewhat fluid portion of the upper mantle upon which the lithosphere is located.

FACT:The asthenosphere gets its name from the Greek word for weak.

Lithosphere

• It is beneath Earth’s crust and is divided into the tectonic plates.

• SOLID• Temp = 500 – 900ºC• 50-100 km thick

The top most layer of the Earth, which is comprised of the crust and solid portion of the upper mantle, divided into plates.

FACT:The lithosphere gets its name from the Greek word for rocky.

Crust

• Continental crust - average thickness of 30 km, composed materials like granite & quartz• Oceanic crust - is thinner (5-8 km thick) and is

composed mostly of basalt.• State of matter = solid• Temp = 0 – 500ºC

The Earth's outer most layer – makes up the continents and ocean floor.

FACT:It makes up only about one percent of the earth.

A: Structure of the Earth Project Build an original model or find an existing model (ex. something you already have, like an apple) of the Earth’s structure. Identify and describe the advantages and limitations of your model.

100 – Student-designed (original) model with 3 or more advantages and 2 limitations clearly identified in writing.90 – Found (non-original) model with 3 or more advantages and 2 limitations clearly identified in writing.80 – Model (original or found) with 2 advantages and 2 limitations clearly identified in writing70 – No model presented, but student can clearly identify in writing at least 2 advantages and 2 limitations of a teacher-provided model.

Due: Tuesday, March 26, 2013No late projects will be accepted due to time restrictions. Be creative – think outside the box!

C: Draw and label the Layers of EARTH

_______________

______________________________

______________

E: Plan for Friday’s Essay: Journey to the Core

What important information about Earth’s structure will you include?

How will you organize your essay?

Journey to Earth’s Core: 3/22/13S: You are traveling to Earth’s core. Your machine allows you to travel 45km in 90 seconds. What is your speed in km / min?

Be careful and think!

P: Plan Ahead!• Write a brief outline of your journey from crust to core.

• Be sure to include where your journey is beginning (ocean basin or continental crust) since the depth of the crust may be dramatically different.

• Be sure to describe your machine, including the special travel requirements for deep earth travel

• Tell what you see and experience along our trip!

A & C

•Write a 1 to 2 page essay describing your travel to Earth’s core.

•E•If time permits, share your essay w a classmate.