What is unique about the four inner planets?

What is unique about the four inner planets?

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.

What makes the inner planets different from the other planets?

The inner planets are closer to the Sun and are smaller and rockier. The outer planets are further away, larger and made up mostly of gas. The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars.

What are some features of the inner planets?

The Inner Planets All are solid, dense, and rocky. None of the inner planets has rings. Compared to the outer planets, the inner planets are small. They have shorter orbits around the Sun and they spin more slowly.

What makes the Earth as a unique planet and why?

Earth is the only known planet of the solar system which supports life. Earth has oxygen, water and temperature. All these conditions which are supporting life, like presence of water and air in a good proportion, presence of life supporting gas and balanced temperature make earth a unique planet.

What are the four inner planets called?

terrestrial planets
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.

What are 5 characteristics of the inner planets?

What are five characteristics of the inner planets?

• Terrestrial Planet Formation. Astronomers theorize that the very early solar system formed as a ring of materials surrounding the sun.
• Size Range.
• Rocky Surface.
• Iron Core.

Do we have 2 suns?

Our Sun is a solitary star, all on its ownsome, which makes it something of an oddball. But there’s evidence to suggest that it did have a binary twin, once upon a time. So, if not for some cosmic event or quirk, Earth could have had two suns. But we don’t.

Why is Earth so special?

Earth is one special planet. It has liquid water, plate tectonics, and an atmosphere that shelters it from the worst of the sun’s rays. The fact that Earth hosts not just life, but intelligent life, makes it doubly unique.

What is the hottest and coldest planet?

The hottest planet in the solar system is Venus with an average temperature of 464 degree Celsius and the coldest planet in the solar system is Pluto with an average temperature of -225 degree Celsius.

Is Sun a planet?

Kid-Friendly Sun The Sun is a star. There are lots of stars in the universe, but the Sun is the closest one to Earth, and it’s the only one in our solar system. It is the center of our solar system. The planets orbit the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.