Mars By Zubin H. and James H..

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Presentation transcript:

Mars By Zubin H. and James H.

Temperature Mars Mars’ average temperature is -81°F (-63°C) Its temperature can range from 68°F (20 °C) to -220°F (-140°C) Earth Earth’s thin atmosphere protects the Earth from extreme temperatures and keeps heat inside. Earth’s temperature ranges from -126° to 136°F (-88° to 58°C)

Air Pressure Mars Mars’ air pressure ranges between 6 and 10 millibars. A millibar is about 1/1000th of the air pressure on Earth. Earth Earth’s air pressure at sea level is about 14.7 lbs. per square inch. That is 1,013 millibars.

Description of Atmosphere Mars Mars has an extremely thin atmosphere made of 95% carbon dioxide, 3% nitrogen, 1.6% argon, and small amounts of other gases. In the cold season, the CO2 freezes, and in the warm season it is released back into the atmosphere. Earth Earth’s atmosphere is composed of 78% nitrogen, 21% oxygen, 9% argon, .03% carbon dioxide, and traces of other gases.

Surface Conditions Mars The ground is dry, rocky, frozen, and covered in iron-rich dust. The north hemisphere is low-lying plains. The south hemisphere is covered with impact craters. Earth Earth’s surface is 70% water and 30% land. The land can be plains, mountains, plateaus, grasslands, deserts, forests, etc.

Gravity Mars Mars has 38% of the gravity on Earth, so a 100 pound person here would weigh 38 pounds on Mars. Earth On Earth, the gravity is 9.8 m/s² in metric measurements or 32 ft/s² in English measurements.

Statistics Mars Mars is 141.6 million miles (227.9 km) away from the sun, 1.524 times as far as the Earth Its day is 24.6 hours (1.026 Earth days) Its year is 686.98 Earth days long. Earth Earth’s distance from the sun is 92,955,820 miles (149,597,890 km) Earth’s day lasts 24 hours and spins at .5 km per second Earth travels around the sun at 30 km/sec and takes 365 days to make a full revolution.

More Facts Mars Scientists think there may be liquid water near Mars’ surface. Mars’ orbit is very elliptical. It is the planet with the most orbital eccentricity. Pluto has the most elliptical orbit but it is no longer a planet. Earth The Earth is actually pear-shaped, not perfectly spherical. To escape the Earth’s gravitational pull, an object must reach a velocity of 24,840 mph (11,180 m/s).