They are small solar system bodies that orbit the Sun, made of rock and metal.
What are asteroids?
100
The Sun was created this many years ago.
What is 4.5 billion years ago?
100
The outer planets are called this
What are gas giants?
100
Pluto was discovered in this year by this person?
What is 1930 by Clyde Tombaugh?
100
Jupiter has this many known moons.
What is 63?
200
They are composed of ices, dust and rocky debris carried from the early formation of the solar system about 4.5 billion years ago.
What is a comet?
200
The Sun is this many miles away.
What is 93 million miles?
200
This is the hottest planet.
What is Venus?
200
This dwarf planet is the closest to the sun.
What is Ceres?
200
This many people walked on the moon.
What is 12?
300
They are bits of rock and ice ejected from comets as they move as they move in their orbit around the Sun.
What are meteors?
300
The Sun is this type of star.
What is a yellow dwarf star?
300
This planet rotates the fastest.
What is Jupiter?
300
This dwarf planet is the coldest of its kind.
What is Eris?
300
The moon Rhea orbits this planet.
What is Jupiter?
400
The first asteroid was discovered this year.
What is 1801?
400
The Sun is mainly composed of these substances.
What is hydrogen, helium, and iron?
400
This planet was discovered mathematically rather than by observation.
What is Neptune?
400
There are this many dwarf planets in the solar system.
What is five?
400
The moon Titania orbits this planet.
What is Uranus?
500
These incredibly beautiful natural occurrences happen when dust or particles from asteroids or comets, entering the Earth’s atmosphere at a very high speed.
What are meteor showers?
500
The Sun rotates at a rate of how many Earth days on its equator
What is 27 Earth days?
500
Valles Marinaris is a canyon on this planet.
What is Mars?
500
In this year the IAU adopted a definition for a dwarf planets.