Mars
Mars is the fourth planet from the sun. It is called "Earth's next door neighbor". Mars was named for the ancient Roman god of war. It is a reddish-orange color. No human has ever set foot on Mars so far.



Questions:

• How long is an average day on Mars?
• What is Mars' diameter?
• What is the average surface temperature?
• How many moons does Mars have?
• How far away is Mars from the sun?