4.Mars

*Mars (sometimes called the Red Planet) is about 1/2 the size of Earth in diameter.

*It is the 4th planet from the sun (228 million kilometers away).

*It makes one complete orbit around the sun every 686.98 days.

*It rotates on its axis every 24 hours and 37 minutes (about the same speed as earth).

*It has two moons.

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