Convection

the lower mantle. The lower mantle is completely solid since the pressure is too excessive for it to melt and flow. The upper mantle is also known as the asthenosphere, which flows as convection currents. Convection occurs in all fluids and is the rising of warm particles and sinking of cool particles. This convection flow of the asthenosphere has a large impact on Earth 's lithosphere, the outermost layer of the planet. The lithosphere contains both the crust and a small portion of the upper…

The Sun is a massive, white ball of gas that fuels the solar system. Without it, life wouldn’t be able to survive on earth. It has lived for billions of years, providing energy and light. Nothing can live without it. The Sun, which is also called Sol, is estimated to be 4.6 billion years old with up to five billion years left in its life. It is currently in its yellow dwarf phase of life. It is located in the Milky Way galaxy in a spiral arm known as the Orion Arm. The Sun orbits the center of…

solar system. Here, energy created from the core is transferred through radiation. Because of how dense the radiation zone is, it can take energy 100,000 years to travel through it. The outermost layer is the convection zone. Like its name suggests, energy here is transferred through convection. This is the coolest layer of the sun, reaching only two million degrees…

and the temperature causes great pressure onto the outer layer of Earth. The force that causes the plates to move is called convection, a process in which hot magma rises toward the surface of the plates and as it cools, spreads and new magma from the bottom, rises to the surface as the cooling magma descends, “Just like a pot boiling on a stove” (Van der Elst). Convection is the cause of the movement of the plates, and there are three different types of boundary movements. Firstly, converging…

The Formation of Australia Although Australia has the least surface area compared to other continents, it does have a long geological history. Australia is formed by many geological elements resulting in the present-day Australia. Continental drift is the movement of the Earth's continents shifting (Appearing to be 'drifting') on Earth's surface. There have been many supercontinents, throughout history, which had existed on Earth's surface for millions of years. Supercontinents are a cluster…

amniotic sac where coldness is never felt. Once the neonate experiences extrauterine life, the neonate is now at risk for cold stress (Durham, 2014, p. 377). There are four different ways in which a neonate can loose heat; these four are radiation, convection, conduction, and evaporation. Studies have shown that the nurses procedures have a major effect on heat loss in a neonate. Procedures such as taking vital signs, suctioning, repositioning, umbilical line insertion, intubations, obtaining…

Question: Describe in detail the three theories that were the predecessors to plate tectonic theory. Provide evidence of how features of the surface support the current, theory of plate tectonics describing the ways the tectonic plates interact and the result of their interactions. The Continental Drift Theory The Continental Drift can help the surface support the current by plowing through ocean basins. It also did not include seafloor spreading or subduction. So, that did not cause an…

The Mpemba Effect The Mpemba effect is a rather unusual physical phenomenon where hot water freezes faster than cold water, under certain conditions. Intuitively, this doesn’t make any sense. How could water of higher temperature reach freezing temperature quicker than water of colder temperature? Water freezes when it’s molecules lose energy and slow down enough to stick together, forming ice. The molecules of water of high temperature have more energy the molecules in the colder water. So,…

The structure and function of the skin regulates the body temperature. The skins main function is to cover the outside of the body and preventing anything bad from entering into it. When skin cells shred off the surface layer new ones will form. The skin not only forms a waterproof layer and it helps make sure that heat doesn’t leave the body. It has a major role in the homeostatic regulation of the core body temperature and is said to be part of the nervous system due to its sensitivity.…

Instruct the students that convection currents in the asthenosphere travel to the surface of the Earth, where it breaks apart the plates at “spreading centers”, and as the plates separate the constantly streaming magma cools when it reaches the surface creating new ocean floor. Stress…