1.  Mars is the _____ planet from the Sun in the Solar System.

2.  The planet is named after Mars, the Roman god of ..

3.  Mars is also referred to as the ..

4.  Mars is the site of Olympus Mons, the highest known mountain in the Solar System, which is about ________ higher than Mount Everest

5.  Valles Marineris rift system that runs along the Martian equator is larger than any of Earth's largest canyons, and is the largest known crevice in the solar system - up to ____ deep

6.  Mars has a lower gravity than Earth - only about ____ of the surface gravity on Earth.

7.  The atmosphere of Mars is relatively thin. Mars' mean surface pressure is less than 1% of the surface pressure on Earth. This equals to the pressure found at ____ above the Earth's surface.

8.  During a Mars pole's winter, it lies in continuous darkness, chilling the surface and causing 25–30% of the atmosphere to condense out into thick slabs of CO2 ice (dry ice). When the poles are again exposed to sunlight, the frozen CO2 sublimes, creating enormous winds that sweep off the poles as fast as ..

9.  Mars’ greater distance from the Sun leads to the Martian year being about ..

10.  Centuries ago martians have build a system of channels which are even visible today on the martian surface.