Child adolence and development Research Paper Example | Topics and Well Written Essays - 750 words

Child adolence and development - Research Paper Example In my days as a child, I was carefree with no worries at all. I would wander like a deer upon the open fields. I enjoyed various natural beauties in the gardens together with my other friends. The days gone are gone forever. What I have are only memories that remain in my mind. The memories make me cry and laugh at times. Nevertheless, it is impossible to cut out them from life. For such reasons, childhood memories are said to be the sweetest in man’s life. I also got several memories of my childhood life. The memories present the sweetest time of my mind. My childhood memories are indeed sweet. No one can forget his/her childhood experiences whether painful or pleasant. I still remember my childhood life very well. I was born in the suburbs of Illinois where I spent my childhood. My father was employed by the government. Home was a simple house where we lived happily together with my parents, sisters and brothers. That is not all; there was another family member. That is my grandmother. She was humble and affectionate. I remember her trying to teach me recite some sayings and quotes. That was at an early age and my mind weak to capture them, speaking was still difficult task. She showed love to me most than other family members. The memories are bitter for I lost her a few years ago. Am lucky for my parents are still alive up to today. Both mum and dad have been by best teachers in language. They taught me how to pronounce simple words like â€Å"no†, â€Å"yes†, â€Å"come†, and â€Å"go†. There was a ground in front of our house. Paddy and other crops had grown in the ground. The beautiful golden color of the paddy field attracted me a lot. Every afternoon, I walked to the playground through the paddy field. The paddy plants always touched me. I got mixed up in the midst of the beauty of nature. I loudly named each flower as I went by playing. Though the names hardly meant anything, but at least I was better than

Plate tectonics and geodynamics Essay Example | Topics and Well Written Essays - 500 words

Plate tectonics and geodynamics - Essay Example Therefore, such components will melt at different temperatures and conditions, a process known as partial melting (Morgan & Chen, 1993 p6285). The process of partial melting takes place in the mantle (Best, 2009 p33). The mantle has four basic components; oxygen, silicon, magnesium and iron which have low melting points. Additionally, the upper mantle, which is below the ridges of the ocean, melts, since it comprises of the lithosphere that is brittle and fractures easily under low temperatures (Griffith, 1998 p67). Under normal circumstance, the mantle is formed of a solid rock substance called the peridotite (Annen & Zellmer, 2008 53). Partial melting of the peridotite is caused by the heat generated when rocks slide against one another on the base of the lithosphere, causing frictional kinetic energy at the subduction points (Sinton & Detrick, 1992 p198). This generates heat, which causes some elements of the peridotite with a low melting point to melt (Morgan & Chen, 1993 p6289). Consequently, partial melting occurs on the upper mantle, where the peridotite is melt to form a semi-solid substance called the magma (Best, 2009 p30). When the peridotite is melt, the semi-liquid substance formed is less dense than the materials above it. This is because, at such high temperatures, the magma is in a liquid state, which has a low density compared to the solid materials that are on the earth’s crust (Best, 2009 p28). The less dense magma looks for ways to escape upwards and settle above the solid components above it, due to its low viscosity and low density. Therefore, the hotter liquid substance will rise carrying its temperature with it, until it reaches a point where the temperatures are low. Here, its density is increased through solidification (Griffith, 1998 p70). Oceanic ridges tend to move from one another, creating a channel through which the magma can rise from the mantel of the earth to the earth’s crust