HINT.

ACROSS
1.the blue planet made up of methane
2.the largest planet in the solar system
3.The center of the solar system
4.the smallest planet

DOWN
1.the twin of planet earth
2.the red planet
3.the planet where we live in
4.the seventh planet from the sun


HINTACROSS1the Blue Planet Made Up Of Methane2the Largest Planet In The Solar System 3The Center Of The Solar System4the Smallest PlanetDOWN1the Twin Of Planet class=