Earth's structure

    Today's blog is about Earth's structure and the layers of the Earth.I blog about how thick each layer of the Earth is and what they do.


First is the top layer the crust.The crust is about 35 kilometers thick on land.The crust is 15 kilometers thick at the bottom of the ocean.The crust is the layer we live on.It is cool hard rock so we can live on it.It contains tectonic plates that move the continents.
 

The next layer is the Mantle.The mantle is the thickest layer of the Earth.The mantle is about 2850 kilometers thick.The mantle is made up of melted rock.It is about 4000 degrees in the mantle.


Next is the outer core.The outer core is made up of iron and nickle.The outer core is the only layer of the Earth that is all liquid.It is about 2,200 kilometers thick.


Last is the inner core.The inner core is a ball of solid iron.It is compressed together so hard that it never melts even though it is as hot as the surface of the sun.

There is a movie called the core and I think it is cool.There is a link down at the bottom and some other stuff.


http://youtu.be/foAyvN6mVwQ
http://youtu.be/RiHRI_Z2Kgs
http://youtu.be/Q9j1xGaxYzY

PLATE TECTONICS!

    I am going to blog about plate tectonics today.This blog post will include the following: how the earth was formed,what Pangaea is,what are tectonic plates and what are six  plates.
    First things first the earth was once called Pangaea.Pangaea was made up as one continent.The continents were combined.Over time Pangaea started to break apart.North America was the first continent to break.Then came South America,Eurasia,India, and Africa.The reason they broke apart was because volcanoes.This happens because the plates move around in the earths crust and go down to the mantle.They have dead krill and other stuff from the seafloor on them.When they go to the mantle the heat burns them and produces carbon dioxide.When a volcanoe erupts the carbon dioxide is realeased.The seven main plates are the eurassian plate,indian plate,north american plate,south american plate,pacific plate,oceanic

Back to school

     

 Hey I am back at school and doing blogs again.I am going to blog about what I did this summer,what my goals are this year and my weaknesses from last year.

 I did not a lot of things over the summer.The first thing I did this summer is go on a week long cruise on the carnival freedom.It was so much fun and I was sad to come home.It docked in Jamaica,Grand Cayman and the Florida Keys.

                                         Here is a picture of the carnival Freedom

  They have a big water slide on the lido deck.They also have a 24 hour pizza bar and ice cream machine.If you do not want pizza or ice cream you can have a salad.They also show a movie every night on yhe lido deck.They have mini golf and a bascetball and court on the sky deck.

      

I went to a few summer camps and visited my grand parents and I stayed at home a lot,so any ways lets move on.

  My goals this year are to get more comments on my blogs.I want to be more creative and have better blog titles.

My weaknesses last  year was that it was my first year and I did not have any experience.This year I know a little bit more and have better topics to blog about.