Formation of the solar system, Science

 

Formation of the solar system:

 

This theory is based on the assvmption that the Sun and all the planets were formed from a huge rotating cloud df interstellar gas and dust. For some reasons, the cloud started contracting. The contraction was hastened by its gravitational

 

745_Formation of the solar system.png

pull. Tlle cloud continued to contract. It also started rotating faster and became disc shaped. More and more'matter contracted towards the centre of  the disc, forming the star to be-the new Sun. The temperature of  this star rose due  to contraction until  it  started generating its own energy. Revolving around the Sun was a disc of  gas and dust from which the planets condensed. In  this revolving disc, the lighter elements were thrown towards the periphery and heavier elements concentrated  inwards. As  the Sun's energy increased, the gas shells around the inner planets were driven off  and only cores of  heavier elements in the cloud remained. The outer planets were less affected. Finally,  the bright  star's  radiation removed  the last of  the system's  free gases and a mixed array of planets remained. The smaller, solid ones were near the star and the much larger gaseous ones farther away. The Earth was the third planet. 

Posted Date: 9/28/2012 2:56:21 AM | Location : United States







Related Discussions:- Formation of the solar system, Assignment Help, Ask Question on Formation of the solar system, Get Answer, Expert's Help, Formation of the solar system Discussions

Write discussion on Formation of the solar system
Your posts are moderated
Related Questions
what is the speed of light

Define Hypothalamic Control of Anterior Pituitary Gland The hypothalamus controls many of the automatic functions of the body. It secretes a series of different neurosecretory

Structure of Atoms Elements are pure substances. Elements are composed of a single kind of atom, as opposed to compounds which contain two or more kinds of atoms (see lesson 5).

Control of Environment: Control of environment  is essential for maintaining good health. Environmental factors which are basic to individual and community health are housing

Freezing Systems Different types of freezing systems are available for foods. No single freezing system can satisfy all freezing needs, because of the wide variety of food pro

Explain concept of Salting out Salting out: Proteins  in  aqueous  medium can  be  precipitated  by  qdding, trichloroacetic acid (TCA) or perchloric acid (PCA). Salts of hea

Which will most likely form when a steep mountain stream flows abruptly onto a flat plain alluvial fan

Scientific approach to problem solving: The scientific method and the features of scientific knowledge described above are in no way restricted  to the domain of scientists alo

Define the term - Soil protozoa These are unicellular but larger than bacteria, the size varying from a few microns to a few centimeters. The protozoa exist in all aerable soil

I dont understand anything. Please explain the whole lesson