By Carly

Living connections

What do you think would be required to make it possible for humans to survive on other planets? Make sure you describe the environmental conditions on at least two different planets.

Our Task

Mars

0.13% oxygen95.32% carbon dioxide2.7% nitrogen1.6% argon0.08% carbon monoxide

Mars is made of

Mars' atmosphere is much thinner than that surrounding the earth. It is composed mainly carbon dioxide with small amounts of nitrogen, argon, oxygen, carbon monoxide, neon, krypton and xenon. There are also tiny traces of water vapour, probably from the evaporation of the polar caps.

Mar’s Atmosphere

Mars has two small moons that travel around it. The closest one, Phobos, is also the largest of the two. It has a diameter of about fourteen miles at the equator and about eleven miles from pole to pole. It makes its revolution around Mars in about seven and a half hours.

The smaller satellite, Deimos, has a diameter of about six miles and makes its journey around Mars in thirty hours. Asaph Hall, an American astronomer, discovered both the satellites in 1877.

Satellites in mars

Maximum temperature of mars is -5 degrease Celsius

Minimum temperature of mars is -120 degrease Celsius

Temperature of Mars

Mars is about four-fifths as dense as the earth but its mass in only about one-tenth that of the earth. Thus, its force of gravity is only about three-eighths that of the earth. A 100 pound object on earth would weigh about 38 pounds on Mars.

Density and Mass

Mars is a terrestrial planet. It has a hard rocky surface that you could walk on. Mar’s surface is dry and is much covered with reddish dust and rocks. Mars has to permanent polar ice caps.

Surface of mars

The surface gravity of mars is only about 39% of the surface gravity on earth. If you weigh 100 pounds on earth then you would only weigh 38 pounds on mars.

Mar’s Gravity

http://library.thinkquest.org/12272/data/Mars.html# http://www.aerospaceguide.net/planetmars/index.html http://www.space.com/47-mars-the-red-planet-fourth-planet

-from-the-sun.html http://www.daviddarling.info/encyclopedia/M/Mars.html

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Uranus

83% hydrogen15% helium2% methane

Uranus is made up of

As said before Uranus' atmosphere is about 83% hydrogen, 15% helium and 2% methane.

There are also traces of water and ammonia. The planet's atmospheric details are very difficult to see in visible light. The methane gas above the cloud layers gives it a blue-green colour.

Uranus’s atmosphere

The Planet Uranus has many moons. Five of largest are Miranda, Titania, Oberon, Umbriel, Ariel. The largest moon is Titania with a radius of only 788.9 km (less than half that of our Moon).

Moon’s on Uranus

Uranus’s temperature averages to -210 degrease Celsius.

Temperature on Uranus

Uranus is a 'Gas Giant' with no solid surface.

More than 80 percent of the mass of Uranus is contained in an extended liquid core consisting primarily of 'icy' materials (water, methane and ammonia) with higher-density material at depth.

Surface on Uranus

http://www.aerospaceguide.net/planeturanus.html http://www.crystalinks.com/uranus.html http://www.nasm.si.edu/etp/uranus/

http://www.nasm.si.edu/etp/uranus/uran_moons.html

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