What is the correct formation of the solar system?
Formation. Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula – a spinning, swirling disk of material.
How many steps are there in the formation of a solar system?
List and briefly describe each of the six steps involved in the formation of the solar system. An interstellar cloud of gas that is known as the solar nebula collapsed under its own gravity. The collapse may have been caused by a cataclysmic event. After that, gravity allowed the collapse to continue.
What are the planet formation steps?
Scientists believe that terrestrial planets, like Earth, formed by clumping together from dust and gas into into hot blobs of molten metal and rock several billion years ago. After becoming distinct planets, they went through four stages of formation: Differentiation, Cratering, Flooding and Surface Evolution.
Which of the following lists the planets of our solar system in the correct order from closest to farthest from the Sun quizlet?
Which of the following list the planets of our solar system in the correct order from closest to farthest from the Sun? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
How was the Sun formed step by step?
The sun formed more than 4.5 billion years ago, when a cloud of dust and gas called a nebula collapsed under its own gravity. As it did, the cloud spun and flattened into a disk, with our sun forming at its center. The disk's outskirts later accreted into our solar system, including Earth and the other planets.
What are the 3 theories of the solar system?
These are the Nebular Hypothesis of Laplace, the Planetesimal Hypothesis of Chamberlin and Moulton, and the Capture Theory of See.
What is the first step in the formation of a new solar system quizlet?
The nebula theory is the most generally accepted evolutionary model for formation of the solar system from a cloud of gas and dust particles known as a nebula. In short, the process starts with a rotating cloud of gas and dust that contracts and flattens to form a disk around a star forming at its center.
What are the steps in the formation of our solar system according to the nebular theory?
The Sun and planets began to form in a rotating cloud of nebular gas and dust. These materials eventually clumped together with a hot protosun at the center and chunks of planetesimals rotating around it. Through repeated collisions, the planetesimals grew into protoplanets, and eventually the solar system came about.
How was the Earth formed in 5 steps?
Starting 6600 million years ago, the stages involve the formation of the core, the formation of the mantle, the formation of oceanic-type crust, the formation of ancient platforms, and consolidation (the present stage) after which there will presumably be no more earthquakes or volcanic activity.
What is the first step in planet formation?
The accretion of gas and dust to form small bodies between 1-10 km in diameter. These bodies are known as planetesimals. They form initially from small fragments of solar dust and chondrules by the processes of cohesion (sticking together by weak electrostatic forces) and by gravitational instability.
Which of the following lists the planets of our solar system in the correct order from the closest to the farthest from the Sun?
The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible Planet Nine.
Which of the following lists some of the planets of our solar system in the correct order from largest to smallest?
The Planets in Our Solar System in Order of Size – Universe Today. Planets in our Solar system size comparison. Largest to smallest are pictured left to right, top to bottom: Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury.
What is solar system Short answer?
Definition of solar system : the sun together with the group of celestial bodies that are held by its attraction and revolve around it also : a similar system centered on another star.
How did our solar system begin to form quizlet?
The solar system formed 4.6 billion years ago from a swirling, disk-shaped cloud of gas, ice, and dust, called the solar nebula.
What are the 3 theories of how the earth was formed?
Although there are three major theories that explain how the formation of Earth happened: “The core accretion theory”, “The disk instability theory” and “The pebble accretion theory”.
How many solar systems are there?
The Short Answer: Our planetary system is the only one officially called “solar system,” but astronomers have discovered more than 3,200 other stars with planets orbiting them in our galaxy.
What is the correct order of formation within the nebular hypothesis?
According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen—giant molecular clouds (GMC). These clouds are gravitationally unstable, and matter coalesces within them to smaller denser clumps, which then rotate, collapse, and form stars.
What are the five steps of the nebular hypothesis?
Terms in this set (5)
- step one(4) -The solar nebula consisted of. -hydrogen, …
- step two(2) -A disturbance. …
- step three(2) -The solar nebula assumed a flat, disk shape. …
- step four(2) -Inner planets began to form from metallic. …
- step five(2) -Larger outer planets began forming from fragments.
What are the six stages of the nebular theory?
Terms in this set (6)
- Formation begins and gravity causes the nebula to contract. …
- gravity pulls in the mass of the nebula in, then starts spinning, then the disk forms (planetary, solar disk); gravitational energy gets converted to thermal energy (heat); gets so hot, then nuclear fusion, then the sun is born.
How many stages are there on Earth?
Scientists believe that Earth, like the other inner planets, came to its current state in three different stages. The first stage, described above, is known as accretion, or the formation of a planet from the existing particles within the solar system as they collided with each other to form larger and larger bodies.
Who made Earth?
When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun.
What is the second stage of planet formation?
Cratering. The second stage of planetary development is known as cratering, the bombardment of the early Earth by celestial objects, like asteroids.
Which of the following lists the correct order of the planets from the Sun?
In order of distance from the sun they are; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Which of the following order is given to the planets of solar system on the basis of their sizes?
Planet Sizes Outward from the Sun, the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, followed by the dwarf planet Pluto. Jupiter's diameter is about 11 times that of the Earth's and the Sun's diameter is about 10 times Jupiter's.
What is a solar system for Class 7?
A solar system is a collection of the Sun, eight planets and their moons, comets, asteroids, meteoroids, and dwarf planets revolving around the Sun. The eight planets revolving around the Sun in a sequence are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
What is a solar system class 8?
The Solar System: The sun and the celestial bodies such as planets, comets, asteroids and meteors which revolve around the sun form the solar system. The sun is the nearest star which is the main source of heat and light for all the planets. The planets do not emit light from their own like stars.
Which formed first the Earth or the Sun?
How and when did the early Earth form? Scientists now think the Earth's story began around 4.6 billion years ago in a disk-shaped cloud of dust and gas rotating around the early sun, made up of material left behind after the sun's formation.
Which of the following places the events related to the formation of early Earth in the correct order?
Which of the following places the events related to the formation of early Earth in the correct order? Big gaseous, many rings and many moons. Outer formed before inner. Why is Earth's molten, metallic core important to humans living today?
How many theories are there for Earth formation?
two But how planets like Earth form still remains a subject of great debate. Currently, there are two leading theories on planetary formation.
What is the 9 planets name?
The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible Planet Nine.