Planets
Earth
Moons
Names
Space Rocks
100

The hottest planet in the solar system

Venus
100

The existence of ____ makes Earth special

Life!

100

The most volcanically active moon

Io

100

The mythological god Mars is named after 

The Roman god of war

100

The ring of rocks and asteroids between Mars and Jupiter

The Asteroid Belt

200

The planet with the biggest volcano in the solar system

Mars (Olympus Mons)

200

150,000,000 km

The distance from the Sun to Earth

200

The biggest moon in the solar system

Ganymede

200

The age of the girl who named Pluto

Eleven years old

200

The cause of shooting stars

Meteors 
300

The four planets with rings

Jupiter, Saturn, Uranus, Neptune

300

The cause of the seasons

Earth's 23.4 degree tilt

300
The moon with lakes of liquid methane

Titan

300

The planet with moons named after Shakespeare characters

Uranus

300

The type of orbit comets follow

Elliptical

400

The first planet found using math

Neptune

400

If _____ took longer, temperatures would be more extreme

Earth's rotation (day/night cycle)

400

The Earth's shadow casts over the moon during a _____ eclipse

Lunar

400

The names of two of Saturn's shepherd moons

Prometheus and Pandora

400

Meteors large enough to get through Earth's atmosphere

Meteorites

500

The planet that nearly could have been a star

Jupiter

500

The main two gasses in Earth's atmosphere

Oxygen and nitrogen

500

The definition of "retrograde orbit" and the moon that has one

A moon's orbit in reverse direction to the rotation of the planet; Triton

500

The father of Jupiter in Roman mythology who shares his name with another planet

Saturn

500

The Latin name for ____ means "head of hair"

Comets