Terrestrial Planets
Jovian Planets
Formation of the Solar System
Solar System Debris & TNOs
Wild Card
100

The only planet in our solar system that we have confirmed that there is life on.

What is Earth?

100

This planet is the largest in the solar system, being approximately 2.5 times as massive as all of the other planets in the Solar System combined. 

What is Jupiter?

100

All the planets in the solar system spin and orbit this way because they formed from the same cloud of spinning gas & dust.

What is Counter Clockwise?

100

This small icy world is not considered a planet because it has not cleared the path of its orbit and at some points passes through Neptune's orbit

What is Pluto?

100

This planet appears to revolve the opposite direction of all the other planets, but it actually has a 177 degree tilt on its axis

What is Venus?

200

The hottest planet in the solar system

What is Venus?

200

This planet has the most moons in the whole solar system, with 274 and counting. 

What is Saturn?

200

This is the approximate age of our solar system.

What is 4.6 billion years?

(Ranges of 4.5 - 5 billion years are acceptable)

200

This object is a collection of ice and dust and has an extremely eccentric orbit.

What is a comet?

200

The name of the first artificial satellite to orbit the earth.

What is Sputnik?

300

The only terrestrial planet that has two moons

What is Mars?

300

The planet named after the roman god of the sea and that is the furthest from the sun.

What is Neptune? 

300

This is the name of a small planet-like object that is in the first stages of becoming a planet. 

What is a Planetesimal?

300

This is the term for a piece of space debris that has survived entry through Earths atmosphere and left behind a small* rock.

What is a meteorite?

300

This moon, which orbits Saturn and has a thick methane atmosphere, is the largest moon in the whole solar system.

What is Titan?

400

The smallest planet in the solar system, smaller than even some moons

What is Mercury?

400

This planet appears to revolve on its side with a 97 degree tilt to its axis.

What is Uranus?

400

This theory proposes that the solar system originated from a rotating, disc shaped cloud of gas and dust, with the inner portion becoming the sun, and the outer portion becoming the planets.

What is the Solar Nebula Theory?

400

This collection of "space rocks" towards the inner part of the solar system contains leftover material from the formation of the solar system, including large amounts of metals.

What is the Asteroid Belt?

400

This is the year that man first stepped on the moon.

What is 1969?

500

Mars is thought to get its red color from this compound found on its surface.

What is iron / iron oxide / rust?

500

This prominent feature on Jupiter is thought to be a giant high pressure storm that has existed for at least 360 years.

What is the Great Red Spot?

500

This is an early theory on how the universe formed. It suggests the Sun could have torn apart a passing star and used that material to form the planets.

What is the Capture Theory / Catastrophic Theory?

500

This massive spherical cloud of icy body's surrounds the edge of our solar system for ~1.5 light years and contains many comets.

What is the Oort Cloud?

500

This Galilean moon has a thin icy crust on its surface, and is thought to have a liquid-water ocean under its surface that could possibly harbor life.

What is Europa?

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