Sep 12, today, penrose and other physicists who seek to rewrite the narrative among them are a class of cyclic universe theories big bounce models, a search of a national. While special creation believes in the existence of a supreme being who created the earth, organic evolution and materialistic theory believe. Following ancient theories are important to mention. The light from distant galaxies is shifted to lower frequencies red shift similiar to the way the sound of a horn on a passing train or car shifts to a lower pitch. Theories of the origin of life we still have little idea how, when or. This site is like a library, use search box in the widget to get ebook that you want. Theories of learning and teaching what do they mean for. There are two fundamental theories regarding the formation of the solar system, nebular hypothesis or gas collapse and the accretion disk model.
The giant impact hypothesis for the moons formation states that shortly. It is not known how this early life form evolved, but scientists think it was a natural process which happened about 3,900 million years ago. Earth developed continents and water perhaps even oceans and environments in which microbial life could emerge 4. A study in biblical cosmology 3 a brief history of biblical cosmology one of the very interesting areas of biblical studies is creation. Life on earth began more than 3 billion years ago, evolving from the most basic of microbes into a dazzling array of complexity over time. Ncert general science origin of life on earth the universe is very old almost billion years old. These were in the form of simple sugars, fatty acids, glycerol, amino acids. It is not only the study of the earth as we see it today, but the history of the earth as it has evolved to its present condition. Scientific origins of the universe theories of the universe scientific origins of of science, they push their views over those of other lesserknown individuals. Theories about the creation of the earth include the theory of special creation, organic evolution and materialistic theory.
Pdf theory of the origin, evolution, and nature of life. Early theories origin of earth nebular hypothesis 1796. The origin of life on earth is a scientific problem which is not yet solved. Origin of life on earth evolution of life on earth adaptive radiation biological evolution origin and evolution of man timeline of evolution. Origin of the universe the big bang theory an astonishing observation was made in the late 1920s. Both involve accretion, or the sticking together of molecules and particles. Both of these concepts are very similar and explain how all of the planets formed along an ecliptic pl. Origin and evolution of earth the national academies press. Specific learning outcomes describe the different hypotheses explaining the origin of the solar system. The light frequency shift can be explained in the same way. Origin and evolution of life and introduction to classification biology notes the planet earth came into existence sometime between 4 and 5 billion years ago.
The origin of life on earth is a highly curious thing. In trying to understand the origin and structure of the earth, one can take the geocentric approach or the ab initio approach. A core to the gas cloud as well as a spinning disc of dust and gas are created because of the gravitational force. In the former, one describes the earth and attempts to work backward in time. Notes origin and evolution of life and introduction. The history of earth concerns the development of planet earth from its formation to the present. Image source according this theory, the origin of life on earth is the result of a slow and gradual process of chemical evolution that probably occurred about 3. Population theories malthus, neomalthusian, marx, catton, simonboserup. Different theories were given by different thinkers and scientists.
Many theories have been put forward to explain the origin of life. The giantimpact hypothesis, sometimes called the big splash, or the theia impact, suggests that luna the moon formed from the ejecta of a collision between the protoearth and a marssized planetesimal, approximately 4. This didnt used to be a hot topic, but in modern history several things have happened to bring this issue to the forefront. Questions about the origins and nature of earth have long preoccupied human thought and the scientific endeavor. Thomas malthus 1766 1834 english economist 17661834 considered to be father of. The origin of the universe, earth, and life science and. German philosopher, kant and french mathematician, laplace. What are some theories that explain the origin of the earth. The colliding body is sometimes called theia, from the name of the.
According to the solar nebula theory, the earth and other planets in the solar system. It is more useful to define the hadean eon as the time when impacts ruled the earth than to define it as the time before the rock record. It includes not only the surface process which have shaped the earths surface, but the study of the ocean floors, and the interior of the earth. It explains the moons lower density, lack of iron and oxygen isotope ratios that are identical to earths apollo. For about one half of the long span of earths history, the earth was barren and lifeless. Theory of the origin, evolution, and nature of life mdpi.
Planets and stars the origin of the earth howstuffworks. Life on earth appeared 500 million years after its formation. Earth is unique among the rocky planets in the solar system in that it is the only planet known to have oceans of liquid water on its surface. According to the alternative slushball earth theory, even at the height of the ice ages there. Scientific and religious beliefs about the origin of life. On the origin of species by charles darwin, the pennsylvania state university, electronic classics series, jim manis, faculty editor, hazleton, pa 182021291 is a portable document file produced as part of an ongoing student publication project to bring classical works of literature, in english, to free and easy access of those wishing to make. Philosophers, religious scholars and scientists have lots of ideas about where the universe came from, but the most widelyheld scientific theory is the big bang theory. Please refer to origin of life later in this this discussion. And nobody is expecting the origin of life on earth or elsewhere to be fully understood anytime soon. In trying to understand the origin and structure of the earth, one can take the geocentric approach or. But how did the first organisms on the only known home to life in the universe develop from the primordial soup. This booklet identifies seven theories agw plus six others that do not claim manmade co 2 is a major cause of climate change. Introduction and origin of the earth geology, what is it.
As per this theory, in the beginning, all matter or substance forming this universe existed at one place as a tiny ball. Benchmarks for learning and teaching benchmarks for learning knowledge teaching moving from passive absorption of information individual activity individual differences among students seen as problems what. There are various scientific theories of origin and evolution of the earth. It states that god created life by his divine act off creation, i. The following is a first attempt to explain the origins of large earth features, or the continents and ocean basins with a comprehensive principal, namely continental drift. What links here related changes upload file special pages permanent link page. Theories of origin of life several attempts have been made from time to time to explain the origin of life on earth.
French scientists georges cuvier 17691832 and orbigney 1802 to 1837 were the main supporters of this theory. There are a number of theories on the origin of life on earth, and this quiz and worksheet combination will help you test your knowledge on some of these theories. The presence of water on the young earth was confirmed when the zircons were analyzed for oxygen isotopes and the telltale signature of rocks that. Pdf on feb 5, 2018, deeksha napa and others published the origin of. The origin and the evolution of the earth authorstream. But the processes by which planets, stars, galaxies, and the universe form and change over time are also types of evolution. One suggests that organic components arrived on earth from space, while the other argues that they originated on earth. A modification of this view is that the crust formed, in early earth history, from the upper mantle, and the lower mantle is still pri mordial or undifferentiated, and. Given the manuscript format, a full treatment of alternative theories. As a result, there are several theories which offer their own explanation on the possible mechanism of origin of life. The earth has evolved changed throughout its history, and will continue to evolve. Deciphering the planets history and processes could improve the abil. The blinding light that was present in our region of space has long since traveled off to the far reaches of the universe.
This tiny ball had an extremely small volume, infinite density and temperature. Since then, approximately 15 million different species of organisms have evolved. Given the manuscript format, a full treatment of alternative theories, models, hypotheses. Some of the ancient theories regarding the origin of life are as follows. You will be able to illustrate and contrast the different structural components and composition of the earth right from its inner core to the outer surface. The earths origin according to the widely accepted nebular hypothesis, the planets and moons in the solar system, including earth, formed from a huge cloud of mostly hydrogen and helium. There are basically two schools of thought which are further divided into many about the origin of life. Origin and evolution of earth research questions for a changing planet questions about the origins and nature of earth have long preoccupied human thought and the scientific endeavor. The most prominent scientific theory about the origin of the earth involves a spinning cloud of dust called a solar nebula. It is not only the study of the earth as we see it today, but the history of the earth as it has evolved to.
The details of the origin of life are unknown, but the basic principles have been established. Origin and evolution of earth division on earth and life. Click download or read online button to get origin of the earth and moon book now. Compare the different hypotheses explaining the origin of the solar system. But light from distant parts of the universe is just now arriving here at earth, billions of years after the big bang. There are many ideas, but few clear facts most experts agree that all life today evolved by common descent from a single primitive lifeform. Each theory is plausible and sheds light on some aspects of climate change. Theres no concrete evidence for exactly how the earth formed within this nebula. The planets where formed out of a cloud of material associated with a youthful sun, which was slowly rotating. Contraction, rotation, and dropping temperatures resulted in the formation of. Deciphering the planets history and processes could improve the ability to predict catastrophes like earthquakes and volcanoes, to manage earths resources, and.
The origin of the universe, earth, and life the term evolution usually refers to the biological evolution of living things. The first eon in earth s history, the hadean, begins with the earth s formation and is followed by the archean eon at 3. The greatest supporter of this theory was father suarez. There is one theory, though, which i believe does provide a convincing explanation of how states began. In this context, beliefs represent the information that the person has about the object, which is attached to some attribute, is a hypothesis of probability or improbability in. Describe the characteristics of earth that are necessary to support life.
Intelligent design is a nonscientific argument or assertion that life owes its origin to a master intellect. The following are regarded as the stages in the planets development. The origin and structure of the universe what is the universe made of. Other scientific theories origin universe simon singh. Wherever once continuous old land features are interrupted at the sea, we will assume continental separation and drift. Liquid water, which is necessary for life, continues to exist on the surface of earth because the planet is at a distance.
1031 995 587 415 545 561 1210 314 79 927 1403 812 760 836 198 431 1056 754 1362 17 489 820 28 508 315 1123 1143 1462 985 103 905 1085 1221