Tutor profile: Dominick G.
Subject: Natural Sciences
What are the different branches of natural sciences?
Natural science can be divided into two general categories: life sciences and physical sciences. Life sciences deal with phenomena related to living organisms, while the physical sciences focus on inorganic (or non-living) systems. We can further subdivide the life and physical sciences into more specific fields (i.e., biology, ecology for life sciences, and physics, chemistry, geology for physical sciences), and each of these fields has their own sets of specializations.
What is the theory of Plate Tectonics?
Plate Tectonics is a relatively new concept (born in the 1960s) brought from the merging of two lines of thought: Continental Drift and Seafloor Spreading. The insight of continents moving relative to each other was championed by Alfred Wegener - indeed, he gave strong arguments in trying to prove his theory of Continental Drift. The striking fit of the coastlines of South America and Africa is one evidence he used. He also noted the presence of fossil plants found in Antarctica, which suggests that it was once located in lower latitudes. However, Wegener failed to give a mechanism on how the continents actually drifted towards or away from each other. The Seafloor Spreading Theory was proposed during the 1960s and provided a means of creating oceans and prompting the separation of continents. The combination of both theories led to the proposal that the earth's crust and uppermost mantle (called the lithosphere) is divided into several pieces called plates that move relative to each other. The lithosphere "floats" above the "flowing" asthenosphere, carrying the overriding plate with it. Plate Tectonics explains why earthquakes and volcanoes are common along certain areas of the world.
Subject: Study Skills
Study skills or tips that helped me survive college?
Multiple courses with heavy loads demand a stringent time schedule and lots of effort. To make things a little bit easier, I try to relate concepts with everyday experiences or with hard-to-forget mnemonics. This will help in retaining information in your head. Further, I also try to explain these concepts out loud and simplify it as much as possible. This second step is very important. Remember, memorization is the lowest form of knowledge - only by forming the concept through your own words can you understand it deeper and truly learn the material. Also, listen very carefully to your professors! This is a state-the-obvious sentence, but only a few people actually listen and remember that professors actually give emphasis on a lot of key concepts in their lectures, and these most commonly appear in their exams.
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