Earth Science: Introduction

                    "The most remarkable discovery made by scientists is science itself." -Gerard Pie. After two years of not studying science because of my college course (Advertising Arts), perhaps it is time to review everything about the science, things and facts of earth. Anyway, as I quote Gerard Pie's words, science itself is the most remarkable discovery made by scientist so I'm nothing but excited for this subject. And yes, we already tackled Earth Science during our first year of high school which is like 7 years backwards so I guess my background of this study is not that clear anymore. For now I'm just excited to take down notes, think deeper again and reminisce the lessons we've learned before about Earth Science. 

 Yesterday, our professor, Mr. Crisencio M. Paner gave us a mind-kick of a brief summary of the Earth's Science. So basically, Earth Science encompasses all sciences that seek to understand. It includes Geology or the study of the earth, Oceanography or the study of the ocean, Meteorology or the study of the atmosphere and the processes that produce weather, and Astronomy or the study of the universe. It is also said that most researchers conclude that Earth and the other planets formed at essentially the same time. There are also different theories and hypothesis introduced like the Nebular Hypothesis, Big Bang theory, etc. these are just some of the popular different ideas on how the Earth was formed.

There are also four major spheres surrounding and within the Earth. The Hydrosphere, Atmosphere, Biosphere, and Geosphere. Ocean is the most prominent feature of the Hydrosphere. It is nearly 71% of Earth's surface and holds about 97% of Earth's water. It also includes fresh water found in streams, lakes, and glaciers, as well as that found underground. On the other hand, Atmosphere is a thin, tenuous blanket of air. One half lies below 5.6 kilometers (3.5 miles) and Biosphere includes all life and is concentrated near the surface in a zone that extends from the ocean floor upward for several kilometers into the atmosphere. Based on compositional differences, Geosphere consists of the crust, mantle, and core. Crust as the thin rocky outer layer of Earth, Mantle as the 2890-kilometer-thick layer of  
Earth located below the crust, and Core as the innermost layer of Earth located beneath the Mantle. If I'm not mistaken, Core is also the hottest part of the Earth. It's temperature barely lie about 5000 degrees Celsius. We also tackled the theory that proposes that Earth’s outer shell consists of individual plates that interact in various ways and thereby produce earthquakes, volcanoes, mountains, and Earth’s crust itself which is called Plate Tectonics.


We also tackled two important things regarding locations: the Latitude and Longitude. These are lines on the globe that are used to determine location. Latitude is distance north or south of the equator, measured in degrees. Longitude is distance east or west of the prime meridian, measured in degrees. No matter what kind of map is made, some portion of the surface will always look either too small, too big, or out of place. Mapmakers have, however, found ways to limit the distortion of shape, size, distance and direction. 


So that's it! That's the brief summary of our lesson last meeting. I really should say that summarizing and blogging things about Earth Science and our lessons could really help me review and be more familiarized with things like this. It's like I'm having an online open-notes essay quiz every week. And yeah it's awesome! :D


~will continue blogging about this after a week  ◕‿◕ 

To view my source and the PowerPoint used by our professor please click here


Keywords: Earth, Earth Science, Geosphere, Atmosphere, Biosphere, Geology, Oceanography, Meteorology, Astronomy, latitude, longitude