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Solar Sys. Formation

Chapter 27

QuestionAnswer
Define solar nebula a rotating cloud of gas and dust that gave rise to Earth’s solar system
Where does 99% of the matter that was in the solar nebula exist now? the sun
Describe a moon small bodies that orbit planets
Which former major planet is now classified as a dwarf planet? Pluto
When Earth’s atmosphere formed, which gases were lost because Earth’s gravity was too weak? hydrogen and helium
Difference between planetesimal and protoplanet a planetesimal is smaller than a protoplanet
the sun and all of the planets and other bodies that revolve around it make up the solar system
celestial bodies that orbit the sun, such as Earth and Jupiter are called planets
in 1796, the French mathematician Pierre-Simon advanced the ___________________________ to explain the origins of the solar system. nebular hypothesis
Laplace's hypothesis states the sun and the planets condensed at about the same time out of a rotating cloud of dust and gas called a nebula
the rotating cloud of dust and gas from which our solar system is thought to have formed is called the solar nebula
Energy from collisions and pressure from gravity caused the center of the solar nebula to become hotter and denser
Which of the following formed when the temperature at the center of the nebula reached about 10,000,000 degrees celsius and hydrogen fusion began the sun
Small bodies from which a planet originated in the early development of the solar system are called planetesimals
some planetesimals joined together through collision and through the force of gravity to form larger bodies called protoplanets
the only planet with which the proper combination of water, atmosphere, and temperature to support life Earth
the planet closest to the sun, has a hot heavily cratered surface Mercury
a planet with massive volcanoes and canyons, seasons similar to earth's Mars
this satellite orbits Venus Magellan
a planet similar to Earth in size, mass and density Venus
rotating cloud of dust and gas from which our solar system is thought to have formed Solar Nebula
Mar's volcanoes are larger than those of Earth because Mars has no moving tectonic plates
Impact craters are caused by collisions with objects in space
the factors that contribute to Mercury's daily temperature fluctuation of about 600 degrees celsius are the planets's slow rotation and its close proximity to the sun
Created by: Amatulli Science
 

 



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