How did the terrestrial planets form?
How did the terrestrial planets form?
Terrestrial Planet Formation Hydrogen compounds, such as water and methane, typically condense at low temperatures, and remain gaseous inside the frost line where temperatures are higher. Thus, the inner planets are made almost entirely of rock and metal and form the group known as the terrestrial planets.
What are the terrestrial planets quizlet?
What are the Terrestrial Planets? four small, dense, rocky planets that orbit closest to the sun. Mercury, Venus, Earth, and Mars.
What would you expect terrestrial planets to form in the solar nebula?
Where would you expect terrestrial planets to form in the solar nebula? one star, eight planets, 169 moons orbiting those planets, eight asteroids and more than 100 Kuiper belt objects larger than 300 km in diameter, etc.
Where did the terrestrial planets form quizlet?
Terrestrial planets formed inside the frost line, where accretion allowed tiny, solid grains of metal and rock to grow into planetesimals that ultimately merged to make the planets we see today. How did the Jovian planets form?
When did the terrestrial planets form?
The core accretion model Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.
How are the terrestrial planets similar quizlet?
Which planets are often called the terrestrial planets? What are 3 similarities among the inner planets? They are small, dense, and have rocky surfaces. You just studied 25 terms!
What are the characteristics of the terrestrial planets quizlet?
Mercury, Venus, Earth and Mars all are small and made of rocky metallic substances with minor amounts of gases and ices. The terrestrial planets have thin atmospheres. Terrestrial planets have densities that are greater than 5x’s that of water’s density.
What do terrestrial planets have in common?
Terrestrial planets are Earth-like planets made up of rocks or metals with a hard surface. Terrestrial planets also have a molten heavy-metal core, few moons and topological features such as valleys, volcanoes and craters.
How are the terrestrial planets similar?
All terrestrial planets have approximately the same type of structure: a central metallic core composed of mostly iron, with a surrounding silicate mantle. Terrestrial planets are also known for having few or no moons. Venus and Mercury have no moons, while Earth has only the one (the Moon).
What happens to a nebula when it spins faster Why?
Under the influence of its own gravity, the nebula contracts. As it contracts, it spins faster and faster, much like an ice skater who pulls in her arms. As a result of the spinning, the nebula flattens out to form a disk, much like a clump of dough which is spun into a pizza.
