Inner Planets
Smallest Planet
What is Mercury
By far the largest and most massive planet.
What is Jupiter?
This is the most abundant element.
What is hydrogen.
These are small rocky bodies mostly found in several belts in the solar system.
What are asteroids.
This is the age of the Earth.
What is 4.5 billion years.
The hottest planet, the evil twin of Earth.
What is Venus?
The four largest moons of this planet were discovered by Galileo.
What is Jupiter?
This is the theory that life came from elsewhere in the universe.
What is Panspermia?
These are sometimes called "dirty snowballs".
What are comets.
This object was formed by the giant impact.
What is the Moon.
The largest and most massive of the inner planets.
What is the Earth?
The name of the planet that was discovered by mathematics in 1846.
What is Neptune.
What elements are considered to be metals in cosmochemistry?
What are all elements beyond Helium?
Ceres, Pluto and Eris are examples of these.
What are Dwarf Planets.
These are the large lava seas on the Moon.
What are the Maria.
Which planet once had oceans, rivers and active volcanoes.
What is Mars?
Which planet has massive rings and 273 satellites.
What is Saturn?
His 3 laws defined the orbital motions of the planets.
Who was Kepler?
In 2006, the IAU reclassified this object.
What is Pluto.
This gas was NOT present in the Earth's atmosphere 4 billion years ago,
What is Oxygen.
Which inner planets don't have any moons?
What are Venus and Mercury?
What planet has such a low density that it would float on water?
What is Saturn?
These can be stones (chondrites), stony-irons or metallic (irons),
What are Meteorites,
Most of the long period comets can be found in the region.
What is the Oort Cloud?
On Earth, these processes can destroy impact craters.
What is the atmosphere, weathering (erosion), tectonics and volcanism (need 3 out of 4).