Show:
Going 'round the Sun
Holding It All Together
Who Am I?
How Many Did You Say?
All the Other Stuff
100

These planets orbit farther from the sun and are known as the Gas Giants, Jovian Planets or Outer Planets. (in the correct order)

What are Jupiter, Saturn, Uranus and Neptune?

100

This is the force exerted by more massive objects on less massive objects.

What is gravity?
100

This planet is about half the size of Earth and has a rocky surface with rocks high in iron, so it appears red.

What is Mars?
100
Every galaxy, including the Milky Way, contains this many stars.
What are billions?
100
These are small, rocky objects that lie in the belt between Mars and Jupiter.
What are asteroids?
200

These planets orbit closer to the sun and are known as the Terrestrial Planets, Inner Planets or Rocky Planets. (in the correct order)

What are Mercury, Venus, Earth and Mars?

200
This is what you can find between each of the planets orbiting the sun.
What are large distances of empty space, or nothingness?
200
This Gas Giant has the most spectacular and largest set of rings, along with over 50 moons.
What is Saturn?
200
This is the only planet with 1 moon.
What is Earth?
200
These small, rocky bodies come from the Oort Cloud and are often said to have "tails."
What are comets?
300
This is the correct order of the planets in our solar system, starting at the sun.
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus & Neptune?
300
This is another word for satellite.
What is a moon?
300

This inner planet is often referred to as Earth's sister planet and has a thick atmosphere made of carbon dioxide that creates a greenhouse effect.

What is Venus?
300

This is the number of moons Mercury and Venus have.

What is zero?
300
Pluto is an example of this type of celestial body.
What is a dwarf planet?
400

These objects make up the solar system.

What are the sun, planets, asteroids, comets, meteors, dwarf planets and other objects in orbit around the sun?

400
This planet has captured more satellites than any other planet in the solar system due to its incredible mass.
What is Jupiter?
400
These two planets are very similar in size and are both composed of ice, leading them to be referred as "Ice Giants," or "Blue Giants" due to their similar color.
What are Uranus & Neptune?
400

This is where more than 99.8% of all matter in the solar system is contained.

What is the Sun?
400
There are currently this many classified dwarf planets. (Bonus points if you can name them all!!)
What is five? (Pluto, Eris, Ceres, Haumea & Makemake)
500

These are the only two planets that orbit the sun rotating in retrograde, or in the opposite direction of all the other planets.

What are Venus & Uranus?
500
This belt of small, icy objects is found at the edge of the solar system, orbiting the sun past the orbit of Neptune.
What is the Kuiper Belt?
500
This is the only planet to orbit the sun tilted sideways.
What is Uranus?
500
These 4 large moons, known as the Galilean moons, orbit Jupiter as a few of its more than 60 known satellites.

Io, Europa, Ganymede and Callisto

500
This is the main reason a dwarf planet cannot be classified as a planet.

What is it has not cleared the neighborhood of other material around its orbit, or it does not have its own orbit.