How did the earth form and become spherical, Science

Assignment Help:

How did the Earth form and become spherical?

The Earth's Shape : About five billion years ago the solar system was forming from gases and dust floating in space. Gravity, the force which pulls all objects in the universe together, caused some of these gases and dust to come together to form the sun and all the other planets. The Earth formed first as a hot ball of lava from the coalescence of these gases and the impacts of meteors. The animation below gives a visual representation of this process, known as the Nebular Hypothesis. The Nebular Hypothesis, which is the view accepted by most scientists today, is fueled by gravity and tends to form spherical bodies which rotate.

The Earth is not a perfect mathematical sphere, so we refer to it as a spheroid. The exact term which describes the shape of the Earth is oblate spheroid, meaning that it is a slightly flattened, imperfect sphere.

In summary, the Earth formed about 4.5 to 5 billion years ago when the solar system was coming together from space debris and gases. The general name for gravitational forces causing planets and stars to form is coalescence, and specifically, the Nebular Hypothesis is the scientific term used to describe the process which forms planets and stars.


Related Discussions:- How did the earth form and become spherical

Demonstrating an eclipse of the moon, Demonstrating an eclipse of the moon ...

Demonstrating an eclipse of the moon Use a flash light or a lighted candle in a darkened room to show the sun. Hold an 8 cm rubber ball in one hand to show the earth. Hold a 2-

Determine the amount of amino acids in urine, Determine the amount of Amino...

Determine the amount of Amino acids in Urine Normal urine contains only small amount of certain amino acids, for example, glycine and glutamine. Abnormal amounts and types of a

What is soil taxonomy, What is Soil Taxonomy The concept of soils as na...

What is Soil Taxonomy The concept of soils as natural bodies was first developed by Russian soil scientist V.V Dokuchaev and his associates when they noted the relationship p a

Enumerate the role of soil algae on soil flora, Enumerate the role of Soil ...

Enumerate the role of Soil algae on soil flora Soil algae are microscopic, chlorophyll containing organisms, being the simplest chlorophyllous plants. These are phototrophic ae

Explain the nuclei or ganglia, Explain the Nuclei or Ganglia Deep withi...

Explain the Nuclei or Ganglia Deep within the cerebral hemispheres are groups of nerve cells called nuclei or ganglia which act as relay stations, where impulses are passed fro

Formulate a nursing care plan, Part 1 1)    Client Assessment.  In the cli...

Part 1 1)    Client Assessment.  In the clinical setting you will: Perform an holistic, nursing focused client assessment and document your findings.You are required to use: a)

Objectives of hazards in biology laboratory, Objectives After studying ...

Objectives After studying this unit you should be able to: 1.  state the principal hazards of biology lab work, 2.  describe the ways to minimize these dangers, 3.  ex

Stellar motion:, Stellar Motion: Stars are not fixed  in  the heavens. ...

Stellar Motion: Stars are not fixed  in  the heavens. They are moving within  the galaxies. The speed of a star moving toward or away from the Earth is indicated by a shift of

Explain air inhalation and expiration by pressure gradients, 1.  Sketch and...

1.  Sketch and explain different regions of phase diagram of water (pressure vs. temperature). 2.  Explain how air inhalation and expiration takes place through pressure gradient

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd