Planet Basics
This planet is known as the Red Planet because of iron oxide (rust) on its surface.
What is Mars?
The largest volcano in the solar system is on Mars.
What is Olympus Mons?
Most of Mars’ atmosphere is made of this gas.
What is carbon dioxide?
Mars has this many moons.
What is two?
Scientists study Mars to see if it could have supported this.
What is life?
Mars is the ___ planet from the Sun.
What is the fourth?
This giant canyon on Mars is longer than the Grand Canyon.
What is Valles Marineris?
Mars’ atmosphere is much ___ than Earth’s.
What is thinner?
These are the names of Mars’ two moons.
What are Phobos and Deimos?
Mars has seasons because it tilts like this planet.
What is Earth?
This type of planet is Mars: rocky or gas giant?
What is a rocky planet?
Mars has this kind of dust that covers much of its surface.
What is red dust?
These huge storms can cover the entire planet.
What are dust storms?
This robot explores Mars by driving on its surface.
What is a rover?
This gas found in small amounts on Mars could be a clue to life.
What is methane?
Mars is about this fraction the size of Earth.
These frozen caps are found at the north and south poles of Mars.
What are ice caps?
Because Mars’ atmosphere is thin, the planet is mostly very ___.
What is cold?
NASA’s rover that landed on Mars in 2021 is named ___.
What is Perseverance?
Mars’ gravity is about ___ of Earth’s gravity.
What is about one-third?
A day on Mars is about this long compared to Earth.
What is about the same length (24.6 hours)?
Scientists believe Mars once had this on its surface.
What is liquid water?
Snow has been found on Mars made of this frozen gas.
What is carbon dioxide (dry ice)?
This flying robot made the first powered flight on another planet.
What is Ingenuity?
Scientists think humans may travel to Mars in this century.
What is the 21st century?