Earth's Inner secrets

Well first all I can say is that I have really learned a lot about earth these past months. So here I would like to share some information that I have learned about earth.

First I will tell you about the rock cycle. In the rock cycle there are 3 different types of rocks that the rock will turn into. Sedimentary turns into Metamorphic, and then Metamorphic turns into Igneous. Sedimentary is formed by bits of pieces of rock being being taken by water or wind and then it settles down at the bottom of rivers, lakes, and the ocean. Then it starts to form together and make rock. Metamorphic rock is formed by all the pressure and heat forming it to be change a become metamorphic. And then Igneous is formed by magma going into pockets inside the ground and it is also formed when I volcano erupts. Some of the rocks that are Sedimentary are Sandstone and Limestone. Some of the rocks that are Metamorphic are Marble and Shale. Some of the rocks that are I Igneous are Obisidian and Pumice.

Now I will tell you about volcanoes. How volcanoes are formed is when there is lots of pressure and heat and its just to much so a hill will form out of the ground. And then it will grow forming a volcano. Also inside a volcano there is magma. But when it comes out of the volcano the magma then is Lava. Then when it is in the air forming dust and things like that it is called Tephara. ALso where the tectonic plates meet is where volcanoes usually are. Because when the 2 plates go against each other it forms a voclano. There are many volcanoes around the Pacific ocean so it is called the Ring of fire.

The earth has five layers the crust, upper mantle, lower mantle, outer core, and the inner core. The Earths crust is the thinnest layer of the earth. The mantle is very thick but not as thick as the core. And it also has magma flowing threw it but not as hot as the core. The core is the hottest and it is also the thickest layer of the earth. The earths core is hotter than the surface of the sun.

Mining is a big problem because well first. We need to share our mineral profits but some countries do not want to. And second we need to keep on going deeper and deeper into the earth to get minerals and rocks. But because we are going deeper in it is harder and mines can collapse. One thing that you need to do when people mine is when they get the minerals or rocks they need to put where they dug of the rocks or minerals place back so are replanted grass is put there they fix it all up so they don't take away the animals homes.

Minerals help us in everyday things. If we didn't have minerals who knows where we will be today! There are many many minerals. The definition of a mineral is,A mineral is a naturally formed, inorganic solid that has a definite crystalline structure. And here is a question what are minerals and this is what they are.

Solid: cannot be a liquid or a gas.

Naturally Occurring: Found in nature, not man made.

Inorganic: Is not alive and never was, no living

Fixed composition: Has a chemical formula, most are formed from compounds of two or more elements, some minerals consist of on element ex.

Crystal Form: A definite structure in which atoms are arranged.


So this is some of the things that I know about our earth. As I said before I have really learned a lot about earth these past few months and I am looking forward to our next unit. So thank you Ms. M for teaching me about Earth.