Planet Mars

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Mars

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by Tim Gault

​Size of Mars

​Mars (diameter 6790 kilometers) is only slightly more than half the size of Earth (diameter 12750 kilometers). Note the difference in color between the two planets. Almost 70% of Earth's surface is covered by liquid water. In contrast, Mars now has no liquid water on its surface and is covered with bare rock and dust.

​Mars Gravity

​Mars' mass is 6.42 x 10²³ kilograms, about 10 times less than Earth. This affects the force of gravity. Gravity on Mars is 38 percent of Earth's gravity, so a 100-pound person on Earth would weigh 38 pounds on Mars.

Perseverance

• Perseverance, nicknamed Percy, is a car-sized Mars rover designed to explore Jezero Crater on Mars

• Launched on 30 July 2020 at and successfully landed on Mars on 18 February 2021

• Goals include identifying ancient Martian environments capable of supporting life, and seeking out evidence if microbial life existed.

Curiosity

• A car-sized Mars rover designed to explore the Gale crater on Mars

• The rover's goals include an investigation of the Martian climate and geology,

Multiple Choice

Mars is the ________ planet from the sun.

• 5th

• 4th

• 3rd

Multiple Choice

Olympus Mons is the solar systems

largest ________.

• Moon

• Volcano

• Valley

Multiple Choice

What is Mars "Nickname"

• Earth's twin

• The red planet

• The tropical planet

Multiple Choice

Why is Mars referred to as the Red Planet?

• high abundance

  of iron 

• red daytime sky
• none of these answer choices