Science+Behind+the+Energy

=**__Flow in Nature:__**=

Food Chain:
The food chain in a system where plants and animals are eaten by other animals and so on. The food chain starts with the sun. The sun gives energy and nutrients to plants or producers. In return those plants are eaten by animals that are a step higher on the food chain. These animals are herbivores. Herbivores only eat plants and fruits. These are considered to be herbs. Then comes the carnivores. Carnivores eat only meat. After the carnivores comes the most important, humans. Humans and animals that happen to eat plants and animals are known as omnivores. But what does this have to do with energy? It has everything to do with energy! When one of the lower organisms get eaten by a higher level organism, it gives the said higher organism energy. Then when, that organism gets eaten it gives the new organism energy and the cycles continues. If one things goes distinct then another will become out of control. This system is very delicate but is essential to life. Without the energy gained from eating lower organisms, then there would be no way we could survive.



Water Cycle:
The Water Cycle is also commonly known as the hydrolic cycle. It is described as the continuous movement of water on, above, and below the surface if the Earth. This cycle involves the exchange of heat energy; this leads to temperature changes. For example, during evaporation, water takes up energy from the surroundings and cools the enviroment; the opposite happens during condensation where the enviroment is warmed by the release of energy to its surroundings. Without the water cycle there would be an imbalance of the maintainence of life and the ecosystems on Earth. By transferring water from one reservoir to another, the water cycle purifies water, replenishes the land with freshwater, and transports minerals to different parts of the globe. Another thing that the water cycle does is it reshapes the geological features of the Earth through processes such as sedimentation and erosioin. =

= =**__Thermodynamics:__**= Thermodynamics is a field of physical science that can change or effect regions of space. It also is a science that transfers heat through radiation, work, and also energy through a system. Thermodynamics relates to certain variables such as temperature and volume. This certain science helped to increase the efficiency of steam engines which is a big advantage. Thermodynamics compares to the relation to thermal forces acting upon to electricity. The history behind thermodynamics was started when a scientist created a vacuum pump which had shown a correlation between pressure and volume. The next step that led to finding concepts of thermodynamics known as heat capacity which is a physical quantity which classifies a change in a given amount of temperature. This system has various laws which influence the outcomes. There’s a Zero law which explains thermodynamics of equilibrium between temperatures. The first law explains a difference between heat and work produced by the system. The second law explains how heat cannot flow from a cold spot to an even hotter spot. The last law known is the third law which is a system which shows how all the values can equal a minimal value or equals zero. This system has different state variables, there’s extensive and intensive. Extensive variables include mass and volume while intensive includes temperature, pressure, and chemicals. To conclude thermodynamics; thermodynamics is used to formulate different temperatures, pressures and other volumes to predict how equilibrium can be reached.



= __Law of Conservation of Energy:__ = The Law of Conservation of Energy, more modernly known as the Law of Conversation of Mass-Energy, states that the sum of the energy in a system remains constant over time. Energy cannot be created or destroyed. However, it can be turned into other forms of energy. For example, in a swinging pendulum, potential energy and kinetic energy constantly flop back and forth as the pendulum makes its arc. In a perfect scenario, as in if there was no friction, the total energy of the pendulum would remain constant as the pendulum continued to swing. A lightbulb shows a more puzzling form of Conservation of Energy. The lightbulb actually produces less light energy than the amount of energy it takes to power it! So one might question, where did the energy go? The rest of the energy used converted into heat energy. The electricity used to power the lightbulb changed into light //and// heat.



Everyone worries about how one day we’ll “run out of energy.” According to the Law of Conservation of Energy, this is impossible. True, we may one day run out of our fossil fuels, but there will always be energy. It just won’t always be useful. An example of the Law of Conservation of Energy can be found in farming. Good farmer Bob knows to alternate his fields every so often between crops and animal grazing. The animals feeding on, let’s say, clover, in one field will poop (biomass) which returns to the ground and fertilizes the soil. This nutrient-rich soil will then be an excellent place for crops to grow. Across town, Billy works in a power plant that runs off of coal, a fossil fuel. The energy in the coal is converted to electricity which travels through the power lines back to Farmer Bob’s house, where he is reading //The Farmer’s Almanac// by his bedside lamp. The energy from the lamp will turn into heat. This is where the energy becomes fairly useless. The energy does not disappear, but the vibrating particles are of no use to us anymore. When Farmer Bob’s eyes get tired, he gazes out the window at the wind farm that Frank established. It’s a different kind of farm than Bob’s, but he’s learned to appreciate the cleanliness of the operation. The energy collected by the turbines first comes from the sun, which heats up the air over land, causing wind as the cooler air from the ocean rushes underneath the warmer air. The turbine spins and creates electricity which once again travels through powerlines to run Billy’s microwave in the country. The microwave heats up Billy’s dinner, which he enjoys while watching The Weather Channel to see what kind of temperatures he can expect the next morning on his way to work at the power plant. The nourishment from the food he eats will power his body to get work done the next day. Conservation of energy is literally everywhere!