Week of Nov. 4th
2008 Hawaii - First ever discovery of tunnel to the mantle of the Earth!
Men have walked on the Moon and sent robots to Mars, but when it comes to exploring our own planet deep beneath our feet, we have only scratched the surface!
How Deep Have We Gone?
- 1960's - Project Mohole (named after scientist who discovery the Moho Boundary between the Crust and Mantle) - US scientists drilled a few meters into oceanic crust
- 1980's - Russia - drilled 12 km
- 2011 - Russia - Exxon Mobile drilled just over 12 km
- Present-2020 - Japan - Drilling to the mantle will bring back samples
Questions For You - Why is reaching the mantle of the Earth going to be very challenging, and why do it?
Our Week
Monday
Classwork - Complete all Rock Activities - collected on Wed.
Homework - WB p. 154-164; 1-2, 5, 10-12, 14, 20-23 - due Wed.
Tuesday
No School for Students
Wednesday
Classwork - 1. Check/go over bookwork p. 154-164 2. Turn in Rock Activities
Homework - WB - p. 192-198; 1-2, 6-15 - Due Mon. 11/11
Question : Can you identify the 3 main compositional layers of the Earth? (Core is divided into 2 parts) Where is the Moho?
Thursday
Classwork - Mystery Colors Lab - due Tues., Nov. 12
Homework- Finish Mystery Colors Questions
Friday
Classwork - Begin Interior of the Earth Activities - should be finished by end of class Tuesday, Nov. 12 ??
Homework - nothing new assigned
Links for Interior of Earth Activities
How Do We Know About Layers Deep Within the Earth
The Earth's Birth: Our Planet Develops Its Inner Heat
The Earth's Birth: Our Planet Develops Its Inner Heat
Getting to the mantle is so difficult because of how deep it is and the extension of materials needed to do it. It is also very challenging to find the right place to start digging to get to the mantle. However, the reward of getting to the mantle is very great. Getting to the mantle helps scientists in investigating how the Earth was formed. Scientists will look at the rocks found in the mantle to help them with their theory.
ReplyDeleteLayers of the Earth: 4 Layers
ReplyDeleteCrust: Brown
Mantle: Gray
Inner Core: Red
Outer Core: Yellow
crust
ReplyDeletemantle
core:inner outer
moho is the in betwen the crust and mantle
Getting to the mantle is going to be difficult because it is very deep down below the surface of the Earth. It will be hard to reach that far down with the current technology we have. Also, the heat and pressure of the mantle could break the machinery being used. Finally, there could be things beneath the crust that could get in the way of drilling.
ReplyDeleteReaching the mantle is going to be very challenging because the earth is around 7900 miles thick in diameter and the farthest anyone has gone is 8 miles and you can go about 18 miles until hitting the mantle.Reasons why we would do it is with the more we explore the more we learn about the earth,there could be different metals or elements or gases that reside in the mantle and we could extract the mantle magma and learn more about that.
ReplyDeleteReaching the mantle would help us learn more about the layers of the Earth and how it formed. If we ever do reach the mantle, we could extract rock and magma samples which could help us learn more about that.
ReplyDeletecore, mantle, crust
ReplyDeletei think of a apple
core - inside
mantle - middle
crust - appleskin
Moho is the lowest layer of the earth's heat circuit
Layers of the earth-
ReplyDeleteCrust
mantle
outer core
inner core
Getting to the mantle is difficult for many reasons. One is the heat and pressure. Machines melt and crumple because of it. Another reason is because not all of the mantle is solid rock. Some of it is made up of liquids.
DeleteGetting to the mantle is going to be difficult because it is very deep down below the surface of the Earth. Heat and pressure of the mantle could break the machinery being used.There could aslo be things beneath the crust that could get in the way of drilling.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteWhy is reaching the mantle of the Earth going to be very challenging, and why do it?
ReplyDeleteIt will be challenging because of the pressure and heat of the mantle and core. They would do it to find out how the Earth was actually created.
Can you identify the 3 main compositional layers of the Earth? (Core is divided into 2 parts) Where is the Moho?
The dark brown is the crust, the light brown is the mantle, the red is the outer core, and the glowing yellow is the inner core. The moho layer is between the crust and the mantle and the depth is about 3 miles.
It is very challenging because there is a lot of pressure deep in the earth, along with extremely high temperatures. It is important to do this because it would be beneficial to scientists to know the original, non eroded rock that the world is made up of.
ReplyDeleteWhy is reaching the mantle of the Earth going to be very challenging, and why do it?
ReplyDeleteBecause it is hard to plow through all those rocks and it costs a lot of money. There is also a really high temperature around there. It is important to know because we want to know what rock it all started with
Why is reaching the mantle of the Earth going to be very challenging, and why do it?
ReplyDelete-The center of the earth contains many of the valuable heavy metals and minerals such as iridium and iron. We could also learn about the formation of the earth as the surface rocks have been eroded and changed many times. it is difficult to reach the mantle as the weight of the materials above create massive amounts of pressure. They heat generated by the molecular decay and the core make it to hot for human life without special vehicles, suits or machines to do it for us.
Can you identify the 3 main compositional layers of the Earth? (Core is divided into 2 parts) Where is the Moho?
-The external and outer layer of the earth is the crust. The Mohorovicic discontinuity is the boundary line between the crust and mantle. The lower layer is the mantle containing molten rock and heavy metals. The core, which is the center layer of the earth, is divided into the inner and outer core, the outer core is molten or liquid based and the inner is a solid based sphere of iron which generates the magnetic field.
It will be very challenging because there is too much heat and pressure under the crust. We should investigate the mantle because it will help us learn about how the Earth formed. The top layer is the crust, after the crust is the mantle, and after that is the outer core and inner core. The Moho is the line separating the crust and the mantle.
ReplyDeleteLayers of the Earth-
ReplyDeleteCrust
Mantle
Core
The moho is in between the crust and mantle
Why is reaching the mantle of the Earth going to be challenging, and why do it?
ReplyDeleteIt will be challenging because of the high temperatures, and the pressure of the mantle and core. They would do it to get info on how things happen inside the Earth.
Can you identify the 3 main compositional layers of he Earth? (Core is divided into 2 parts) Where is the Moho?
The dark brown is the crust, the light brown is the mantle, the red and yellow are the cores. (red-outer core, yellow-inner core) The moho is the layer between the crust and the mantle.
Layers
ReplyDeleteCrust
Mantle
Core
The moho is between the crust and mantle
crust, mantle, and core. the Moho is the stuff between the crust and mantle
ReplyDeleteReaching the mantle of the Earth is going to be very challenging because it is very deep. If we did do it then we could use some of the rocks and stuff that is found to know more about the Earth
ReplyDelete1. Crust
2. Mantle
3. Core
The Moho is between the crust and the mantle
Reaching the mantle is going to be very challenging because of how deep it takes to get to the mantle. Also it takes a lot of money to be able to have the technology to be able to go deep into the earth. We want to be able to get to the mantle because it will give us a lot of information about how the Earth originally formed, by taking pieces from the mantle and bringing up it to Earth.
ReplyDeleteThe three main compositional layers of the Earth are the crust, mantle, and the core. The moho is located between the core and the mantle.
Getting to the mantle will be very hard because drilling that deep takes a lot of time even though they have big drills to do it. If they succeed then we will be able to see what layers we do have.
ReplyDeleteThe three layer of the earth are:
ReplyDeleteCrust
Mantle
Core
The Moho is located in between the crust and the mantle.
question 1: It would be challenging because of the hot temperatures, and the high pressure of the mantle.
ReplyDeletequestion 2: The brown is the mantle the dark brown is the crust and the red and yellow are the cores. The layer between the crust and mantle is called the Moho.
Why is reaching the mantle of the Earth going to be very challenging, and why do it?
ReplyDeleteReaching the mantle of the Earth is challenging because of the intense heat and pressure. As you go deeper into the Earth, closer to the mantle, both the heat and temperature increases. This poses a problem for the equipment that is used to drill (Eventually, the drills will be damaged and useless.) Reaching the mantle of the Earth is important because it helps scientists to prove their theories about the Earth. The mantle can tell us how the Earth formed, what rocks or other materials are located deep in Earth, and (more in detail) how volcanoes erupt.
Can you identify the 3 main compositional layers of the Earth? (Core is divided into 2 parts) Where is the Moho?
The three compositional layers of the Earth are the crust (dark brown), the mantle (light brown), and the core (inner core is yellow and the outer core is red). The moho is located in between the crust and the mantle.