Inner Planets
Outer Planets
Solar System
Black Holes & Dwarf Planet
100

This is the smallest planet and the one closest to the Sun.

Mercury

100

This is the largest planet in our solar system and has a "Great Red Spot.

Jupiter

100

It takes this many days for the Earth to complete one full revolution around the Sun.

365 days

100

This is an area in space where gravity is so strong that even this cannot escape.

Light

200

This is the only planet known to support life and have liquid water on its surface.

Earth

200

This planet is famous for its bright, complex system of rings made of ice and dust.

Saturn

200

This force keeps all the planets in orbit around the Sun.

Gravity

200

Name the planets in order

M.V.E.M.J.S.U.N.

300

This "Red Planet" is home to Olympus Mons, the largest volcano in the solar system.

Mars

300

This dark blue planet is the farthest from the sun and has the strongest winds.

Neptune

300

This is the name for the path a planet takes as it travels around the Sun.

Orbit

300

In 2006, this object was reclassified from a planet to a "Dwarf Planet."

Pluto

400

This planet's surface is 70% covered with water

Earth

400

This "Ice Giant" is unique because it rotates on its side

Uranus

400

The sun is actually a type of ______

Star

400

This is the "point of no return" around the edge of a black hole.

Event horizon

500

This planet is the hottest in our solar system because its thick atmosphere traps heat.

Venus

500

Unlike the inner planets, the Gas Giants do not have a solid ________.

surface

500

This is the name of the belt located between Mars and Jupiter that is filled with rocky debris.

Asteroid Belt

500

This silly-sounding word describes how gravity stretches an object near a black hole.

Spaghettification