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Name_________KEY 282 WAYS TO PASS THE EARTH SCIENCE
Name_________KEY 282 WAYS TO PASS THE EARTH SCIENCE

... The following is in _____ decreasing _____ size and age order: Universe, Galaxy, Solar system, Earth. _____ Geocentric _______ model is earth centered. Everything revolves around the earth. ______ Heliocentric ______________ model is sun centered. Planets revolve around the sun. All planets orbit in ...
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01-Syllabus

... be followed. You are responsible for knowing these, see the university website. Students are welcome to work together, exchange ideas, etc. But for the Observational Project you must do your own measurements and calculations. Exam procedures: Room assignments for the exams will be announced beforeha ...
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... • Most small objects are found in three areas: • Asteroid belt- region of the solar system between Jupiter and Mars. • Kuiper belt- extends to about 100 times Earth’s distance from the sun. • Oort cloud- stretches out more than 1,000 times the distance between the sun and Neptune. DWARF PLANETS • Th ...
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Uranus - Our Lady of Consolation National School
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Formation and evolution of the Solar System



The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.
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