Geologic

1. The geologic periods in order from oldest to youngest are: the Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, Permian, Triassic, Jurassic, Cretaceous, Tertiary, and Quaternary.

2. C.O.S.D.M.P.P.T.J.C.T.Q
Cause Owen sometimes drinks mustard, people play tricks just cause they quite.

(Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, Triassic, Jurassic, Cretaceous, Tertiary, and Quaternary.)

Tree Rings

1. Scientists can tell the age of a tree by looking at the rings because each ring represents one year.

2. This is useful because you can tell how long a tree has been around, as well as how long earth has been formed.

3. This is an example of absolute dating, because if you counted each individual ring you would get the exact age that the tree is.

Unconformities

The order the picture goes in is from D, A, E, B, C. (oldest to youngest rock layers)

I know E comes before B because it does not go through B, showing it formed before B. I also know that C came after B because it goes through all of the layers all the way up to the surface.

Earthquakes VS. Volcanoes.

I personally think that earthquakes are more dangerous than volcanoes. This being because there are more earth quakes happening every day than volcanoes erupting. If you knew there was an active volcano anywhere, you would not build a house or anything near it. But, you can never be sure were an earthquake will happen. On May 27, 2006 there was an earthquake in Indonesia with a magnitude of 6.2 that killed more than 3,000 people and injured thousands. That is a lot of people dead from just one earthquake.

The Center Of The Earth

1. The deepest mine in the world is 3.6 kilometers deep.

2. You would have to dig 35 km to reach the mantle.

3. If I was able to reach the mantle it would look like molten rock (magma). It would probably be like being in an active volcano. The inner core would be liquid iron, and the inner core would be extremely difficult to get through because it would be solid iron. By the time i reached the surface on the other side, the molten rock (magma) would probably follow me up.

My Grade

I think I deserve an A on my blog posts because they meet the criteria. The first four blog posts required a picture and I provided one. They also have paragraphs for each of my responses. There is no spelling mistakes, and I completed them on time. I believe that is deserving of an A Mr. Dunn. Thank you. (:

Rocks

1. The two types of igneous rock are extrusive and intrusive. .Extrusive igneous rocks form when lava hardens above Earth's surface and intrusive forms when magma hardens below Earth's surface .An example of intrusive is gabbro and extrusive is basalt.

2. The two types of metamorphic rock are foliated and non-foliated. Foliated rocks, such as gneiss have a layered or banded appearance which is produced by heat and direct pressure. Non-foliated rocks, such as marble, do not have a layered appearance.

3. The two type of sedimentary rock are clastic and chemical. Clastic sedimentary rocks, such as breccia, form from mechanical weathering. Chemical sedimentary rocks, such as rock salt, form when dissolved materials precipitate from solution.