Compare and Contrast Earth and Mars- 1st Formative Task

Our Solar System
By Caroline 6A

Meaning of Celestial Objects
Celestial Object means natural
objects that is visible in the sky
(Space) such as a star or planet.

The Celestial Objects in Our Solar
System

Celestial Objects in Our Solar System
The Sun
Planets (
Mercury, Venus, Earth, M
ars, Jupiter, Saturn, Ura
nus, Neptune) and their
Moons (if they have)
Dwarf Planets
Meteoroids Comets
Asteroids

The Sun
• The sun is not a planet, so it does not have any moons. The Sun
is orbited by eight planets, at least five dwarf planets, tens
thousand of asteroids, and hundreds of thousands to three
trillion comets and icy bodies.
• Our sun is yellow, orange an a bit red.
• The sun is a very big star.
• It is in the center of our solar system.
• Surface Temperature: 5504o C
• Mass: 1,989,100,000,000,000,000,000,000,000,000,000 kg
• Gravity: 274.0 m/s2
• Composition: 92.1 % Hydrogen, 7.8 % Helium
• Atmosphere: Photosphere, Chromosphere, and Corona.
• Surface Area: 6,078,747,774,547 km2
• Age: 4.6 billion years
• Discovered by: known by the Ancients

Planets & Their Moons
(Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune)

Mercury
• Mercury is a planet. Mercury is the closest planet to The Sun.
• Mercury is slightly larger than Earth’s Moon
• Mercury has no rings and moons.
• Surface Area: 7.4797 x 107 km2
• Orbit: Mercury orbits The Sun. It takes 88 days for Mercury
to orbit The Sun.
• Rotation on its Axis: It takes 176 days for Mercury to rotate
on its axis.
• Temperature: Minimum: -173oC Maximum: 427oC
• Mass: 330,104,000,000,000,000,000,000 kg
• Composition: 70 % Metal and 30% Silicate Material
• Atmosphere: 95.32% Carbon Dioxide, 2.7% Nitrogen, 1.6%
Argon, 0.13% Oxygen, 0.07% Carbon Monoxide, 0.03% Water
Vapor, 0.0013% Nitric Oxide.
• Discovered By: Known by the Ancients

Venus
• Venus is the 2nd Planet from The Sun.
• Venus’s size is similar to Earth. It’s often called Earth’s “Sister Planet”.
• Venus is the hottest planet of all planets with the surface temperature
reaching up to 460oC.
• Venus rotates backwards, Scientists believe Venus rotates backwards
because an asteroid crashed Venus long ago and disturbed its rotation.
• Venus has no rings and moons.
• Orbit: Venus orbits The Sun. It takes 225 days for Venus to orbit The
Sun.
• Rotation on its Axis: Venus rotates backward. It takes 243 days for
Venus to rotate once in its axis.
• Temperature: The average temperature of Venus is 462oC
• Mass: 4.8673 x 1024 kg
• Composition: The Composition of Venus is pretty similar to Earth, with
a core of metal, a mantle of liquid rock, and an outer crust of solid
rock.
• Atmosphere: 96% Carbon Dioxide

Earth
• Earth is the 3rd planet from The Sun.
• Earth our home planet, it’s the only planet known in our solar
system where life exist.
• Earth is often called the “Water Planet” because it’s the only
planet in our solar system which has liquid water in its surface.
• Orbit: The Earth orbits The Sun. It takes 365.4 days for Earth to
orbit The Sun.
• Rotation on its Axis: Earth rotates from West to East. It takes 24
hours for Earth to rotate in its axis.
• Mass: 5.9722 x 1024 kg
• Gravity: 9.80665 m/s2
• Composition: Earth has multiple layers: the crust, mantle and
core.
• Atmosphere: The atmosphere is 785 Nitrogen and 21% oxygen.
• Discovered By: Known by the Ancients.

Earth’s Moon
• Earth has only one moon. It’s called Luna.
• Luna orbits the Earth.
• The first person to walk on the moon was an American
Astronaut, Neil Armstrong, on 21st July 1969.
• Distance from Earth: 384,403 km
• Orbit: The Moon orbits the Earth every 27.3 days.
• Rotation on its Axis: The Moon rotates on its axis in around
the same length of time it takes to orbit the Earth.
• Mass: 7.3477 x 1022 kg
• Atmosphere: Moon has a very thin atmosphere.
• Age: 4.5 billion years old.

Mars
• Mars is the 4th Planet from The Sun.
• Mars has the largest volcano in our solar system. It’s called “The
Olympus Mons”
• Mars is a reddish planet because it contains mainly of iron.
• Orbit: Mars orbits The Sun. it takes 687 days for Mars to complete an
orbit.
• Rotation on its Axis: Mars needs 24 hours, 39 minutes, and 35 seconds
to rotate on its axis once.
• Temperature: Minimum: -87oC Maximum: -5oC
• Mass: 6.4169 x 1023 kg
• Composition: Mars Composition is similar to Earth. It has a core that is
mainly iron & sulfur, wrapped I a mantle and covered by a crust that is
made of basalt and enough iron oxide that makes this planet reddish.
• Atmosphere: Carbon Dioxide 95%, Nitrogen 3%, Argon 1.6%, amounts of
oxygen, water vapour and other gases.

Mars’s Moons
• Mars has 2 moons. Phobos and Deimos.
• The Moons of Mars are among the smallest in
the solar system.
• Phobos is a bit larger than Deimos.
• The moons orbits only 6,000km
Phobos Deimos

Jupiter
• Jupiter is the 5th planet from the sun, Jupiter is known as the biggest
planet in our solar system.
• Jupiter has 64 moons, the largest four: Lo, Europa, Ganymede, and
Callisto.
• There is a permanent storm on Jupiter that is called The Great Red
Spot.
• Orbit: Jupiter orbits the sun. it takes 12 years or 4331 days to orbit The
Sun.
• Rotation on its Axis: Jupiter has the fastest rotation of all planets in the
Solar System. It only takes 9.9 hours to rotate on its axis.
• Temperature: -148oC
• Mass: 1.8981 x 1027 kg
• Composition: Hydrogen 90%, Helium 10%
• Atmosphere: Jupiter’s atmosphere is mainly hydrogen and helium.

Jupiter’s Moons
• Jupiter has 64 moons that orbits around
Jupiter. The largest four (Lo
,Europa, Ganymede, and Callisto)

Jupiter’s Permanent Storm
• Jupiter has a
permanent storm on its
surface called The
Great Red Spot.
• About 100 years
ago, the storm covered
over 40,000 km of the
surface. It is currently
about one half of that
size and seems to be
shrinking.

Saturn
• Saturn is the 6th planet from The Sun.
• Saturn is the 2nd largest planet in our solar system.
• Saturn has 53 known moons (plus 9 awaiting for official confirmation)
• Saturn has more than 30 rings. Some of the rings is named by the alphabets. The
rings are relatively close to each other. Saturn’s ring is made of rocks, ice and
dust.
• Orbit: Saturn orbits The Sun. It takes 29.7 years for Saturn to orbit around the
Sun.
• Rotation on its Axis: Saturn rotates at different rates depending on their distance
from the equator. Astronomers have developed 3 different systems for measuring
the rotational speed of Saturn. System 1 rotation speed is 10 hours and 14
minutes. System 2 rotation speed is 10 hours and 39 minutes. System 3 takes 10
hours and 39 minutes too.
• Mass: 5.6832 x 1026 kg
• Gravity: 10.4* m/s2
• Composition: Hydrogen 96%, Helium 3%, and 1% various elements that include
methane, ammonia, ethane and hydrogen deutride.
• Atmosphere: Hydrogen 75%, Helium 25%, with amounts of other substances like
water, ice and methane.
• Discovered By: known by the Ancients

Saturn’s Moons
• Saturn has 53 known moon (plus 9
awaiting official confirmation)
• One of them, Rhea, This moon has
rings. This would be the first discovery
of a moon that has a ring system.

Saturn’s Rings
• Saturn is best known
for its Ring System.
• Saturn has more
than 30 rings.
• Some of the rings is
named by the
alphabets. The rings
are close to each
other.
• Saturn’s ring is made
of rocks, ice and
dust.

Uranus
• Uranus is the 7th Planet from the sun.
• Uranus is the coldest planet in our solar system.
• Uranus has 27 known moons.
• Uranus has 13 rings.
• Orbit: Uranus orbits the sun. It takes 84.3 years for Uranus to orbit
around The Sun.
• Rotation on its Axis: It takes 17 hours and 14 minutes for Uranus to
spin once on its axis.
• Temperature: -224oCx
• Mass: 8.6810 x 1025 kg
• Composition: Mostly made of ices, water, methane, and ammonia.
• Atmosphere: Composed mainly of Hydrogen, Helium and Methane.
• Discovered By: William Herschel
• Date of Discovery: 13th March 1781

Uranus’s Moons
• Uranus has 27 known moons.
• Oberon and Titania are the largest
moons of Uranus.
Oberon Titania

Uranus’s Rings
• The total number of
rings circling Uranus is
13.
• Uranus rings consist of
3 major groups.
• Alpha, Beta, Gamma, D
elta, 1, 2, 3, 4, 5, 6
are some of the rings’
names.

Neptune
• Neptune is the 8th and farthest planet from the sun.
• Like Jupiter, Neptune has a permanent storm called the Great Dark Spot.
• Surface Area:
• Orbit: Neptune orbits The Sun. it takes 165 years for Neptune to orbit around
The Sun.
• Rotation on its Axis: Neptune takes 16 hours, 6 minutes and 36 seconds to
rotate once on its axis.
• Mass:
• Composition: Beneath the atmosphere is the planet’s large mantle. The
planet’s large mantle: water, ammonia, methane, and other compounds. At
the very center of Neptune is the Planet’s Core. Planet’s Core: iron, nickel
and other silicates.
• Atmosphere: Hydrogen 80%, Helium 19%, with amounts of other ices, like
methane, ammonia and water ice.
• Discovered By: Urbain Le Verrier, John Couch.
• Date of Discovery: 23rd September 1846

Neptune’s Moon
• Neptune has 13 known moons.
• The largest moon is called Triton.

Neptune’s Ring
• Neptune has five
rings: Galle, Le
Verrier, Lassell, Arago,
and Adams. Its rings
were named after the
astronomers who
made an important
discovert regarding
the planet.
• Neptune also has a
ring system which is
composed mostly of
ice.

Neptune’s Permanent Storm
• Neptune has a permanent storm called
the Great Dark Spot.
• Around the Great Dark Spot, Winds
were measured blowing up to 2,400 km
an hour, the fastest in the Solar System.

Dwarf Planets
(Pluto, Ceres, Eris, Makemake, Haumea)

Pluto
• Pluto is not a planet anymore but known as a dwarf
planet.
• Pluto has 1 moon, it’s called Charon.
• Orbit: Pluto orbits the Sun. It takes 248 years for Pluto
to complete one full revolution around the sun.
• Rotation on its Axis: It take 6.4 days for Pluto to rotate
once on its axis.
• Temperature: -223oC to -233oC
• Mass: 1.3090 x 1022 kg
• Composition: Nitrogen 90%, 10% other complex
molecules such as methane
• Atmosphere: Methane and Nitrogen
• Time of Discovery: 1930

Pluto’s Moon
• Pluto has one moon called Charon.
• The distance between Pluto and Charon
is 19,640 km.

Ceres
• Ceres is one of the dwarf planets.
• Ceres is 14 times smaller than Pluto.
• Ceres doesn’t has any moons.
• Orbit: Ceres orbits The Sun. It takes 4.6 years for Ceres to
orbit The Sun.
• Rotation on its Axis: It takes 9 hours and 4 minutes for Ceres
to rotate once on its axis.
• Temperature: -106oC at the average distance from The Sun. -
34.15oC at the closest distance from The Sun.
• Mass: 9.47 x 1020 kg
• Composition: 25% of the mass of all asteroids combined.
• Atmosphere: Ceres’s atmosphere is very thin and not yet
detected.
• Discovered By: Giuseppe Piazzi
• Discovery Date: 1st January 1801

Eris
• Eris is one of the Dwarf Planet.
• Eris it the most massive dwarf planet in the Solar System.
• Eris has 1 moon, it’s called Dysnomia.
• Surface Area: 2,5000 km
• Orbit: Eris orbits The Sun. It takes 557 years to complete an
orbit of The Sun.
• Rotation on its Axis: It takes 25.9 hours to rotate once on its
axis.
• Temperature: -217oC to -243oC
• Mass: 1.6 x 1022 kg
• Composition: Rock and Ice
• Atmosphere: Methane
• Discovered By: Michael E Brown
• Date of Discovery: October 21, 2003

Eris’s Moon
• Eris has one moon that is called
Dysnomia.
• It’s the only known moon of dwarf
planet, Eris.

Makemake
• Along with fellow dwarf planets Pluto and
Haumea, Makemake is located in the Kuiper
Belt, a area outside the orbit of Neptune.
• Astronomers believe it is slightly smaller than
Pluto.
• It takes 310 years for this dwarf planet to
make one orbit around our Sun.

Haumea
• Haumea is one of the Dwarf Planet.
• It’s also one of the fastest rotating
object in our Solar System.
• Haumea turn on its axis for every four
hours.
• Haumea orbits the Sun. It takes 285
years for Haumea to orbit around the
Sun.

Asteroids
• An asteroid is a large rock in Outer Space.
• Asteroids orbits the Sun.
• Asteroids don’t have enough gravity to pull
themselves into a shape of a ball, that’s why
they are too small to be called planets.
• Asteroids are left overs materials from the
formation of the Solar System.
• 26 very large asteroids have been discovered.
But there are stil millions of smaller ones.

Meteoroids
• Meteoroids are bits of rock and ice in Outer
Space.
• We call it a meteor when they fall through a
planet’s atmosphere.
• Meteors look like shooting or falling stars as
they fall because when they hit Earth’s
atmosphere, the friction of the rock rubbing
against the atmosphere causes heat and
light, like a fire. This heat burns the meteor
that causes the meteor disappears.
• The pieces that survive and reaches the ground
are called meteorites.

Comets
• Comets are made out of dust and ice.
More of like a dirty snowball.
• Comets come from the Kuiper Belt and
the Oort Cloud.
• Comets orbits the Sun.

Differences Between Earth and Mars
Earth Characteristic Mars
12,756 km Size of Planet 6,794
365.25 Days Length of Year 687 Days
24 hours Length of Day 24 hours, 37 minutes
One: Luna Moons Two: Phobos and Deimos
78% Nitrogen, 21% Oxygen,
and other gases
Atmosphere 95% Carbon Dioxide, 0.13%
Oxygen, and other gases
Clouds, Wind, Rain,
Thunderstorms, Hurricanes
Weather Wind, Dust storms, Ice, Clouds,
Fog
23.5o Axis Tilt 25.2o
149, 597, 891 km Average Distance from The Sun 227, 936, 637 km
-88oC Minimum Surface Temperature -87oC
58oC Maximum Surface Temperature -87oC
Grand Canyon Deepest Canyon Valles Marineris
Mauna Loa (Hawaii) Largest Volcano Olympus Mons
5.9737 x 1024 kg Mass 6.4185 x 1023 kg
Rocky, Sandy and some
fertile soil containing
organic material.
Soil Mostly rocky and sandy. Some
areas appear to have frozen
water in soil. No known organic

Similarities between Earth and Mars
• Mars and Earth orbits the Sun.
• Mars and Earth is in the same Solar
System.
• The both planets is a terrestrial planet
which made up of rock and metal.
• The both has the same internal structure.
The both planets have an inner core of
metal surrounded by a mantle of rock. A
thin crust covers the mantle.

Conclusion
• Why can we only live on Earth?, Why not on the other planets? We are living on
Earth because Earth is the best planet to sustain human life. Why is Earth the
best planet to sustain human life? Earth is the perfect planet to sustain human
life because of some reasons. One of them is because of Earth’s atmosphere.
Earth’s atmosphere contains enough oxygen (air) for humans to live, other
planet’s atmosphere contains not as much oxygen as Our Earth’s
atmosphere, it’s usually contains other gases such as
methane, helium, hydrogen, carbon dioxide and many other gases. Second, The
distance of Earth and the Sun, it isn’t too far or even too close and the distance
between Earth and the Sun affects our surface temperature. Earth’s
temperature is just right for humans to live, it’s not too hot or even too cold.
Some of the other planets have extreme surface temperature either it’s too hot
or it’s cold! Also, Earth contains a lot of water, 70% of Earth’s surface is water.
Earth is often called the “Water Planet” because it’s the ONLY planet in our
Solar System which has liquid water on its surface.
“There’s no place like
home”

Resources
• “Celestial Object”(Online) Available
http://www.macmillandictionary.com/dictionary/british/celestial-object
Monday 12th August 2013
• “Celestial Body”(Online) Available
http://www.thefreedictionary.com/celestial+body
• Celestial Bodies/ Objects in Our Solar System:
“Our Solar System” (Online) Available
http://solarsystem.nasa.gov/planets/index.cfm
• Helmenstine, Anne Marie. “What is the Element Composition of the Sun?”
(Online) Available
http://chemistry.about.com/od/geochemistry/a/sunelements.htm
Monday 12nd August 2013
• Sharp, Tim “Atmosphere of the Sun: Photosphere, Chromosphere, and
Corona” (Online) Available http://www.space.com/17160-sun-
atmosphere.html

Resources
• Cain, Fraser “Does the Sun Rotate?” (Online) Available
http://www.universetoday.com/60192/does-the-sun-rotate/
• Cain, Fraser “Sun Orbit” (Online) Available
http://www.universetoday.com/18028/sun-orbit/
• “Sun: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts&Sy
stem=Metric
• “Sun” (Online) Available http://kids.britannica.com/comptons/article-
205354/Sun
• “Sun Facts For Kids”
(Online) Available http://www.sciencekids.co.nz/sciencefacts/space/sun.html
• “Sun” (Online) Available
http://www.planetsforkids.org/star-sun.html

Resources
• “Mercury: Facts and Figure” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mercury&Display=Facts&S
ystem=Metric
• Coffey, Jerry “Composition of Mercury” (Online) Available
http://www.universetoday.com/13992/composition-of-mercury/
• Cain, Fraser “Atmosphere of Mercury” (Online) Available
http://www.universetoday.com/22088/atmosphere-of-mercury/ Monday 12th August
2013
• “What is Mercury’s position in the Solar System?” (Online) Available
http://wiki.answers.com/Q/What_is_Mercury's_position_in_the_solar_system
• “Mercury’s Orbit” (Online) Available
https://www.google.com/webhp?source=search_app#bav=on.2,or.r_cp.r_qf.&fp=95
71ee7ad6fb1ce4&q=Mercury's%20orbit
• “Background Information and Activities” (Online) Available
http://www.brainpopjr.com/science/space/solarsystem/grownups.weml

Resources• Cain, Fraser “Composition of Venus” (Online) Available
http://www.universetoday.com/36155/composition-of-venus/
• Coffey, Jerry “Temperature of Venus” (Online) Available
http://www.universetoday.com/14306/temperature-of-venus/
• Cain, Fraser “Rotation of Venus” (Online) Available
http://www.universetoday.com/36687/rotation-of-venus/
• “Venus’s Position in he Solar System” (Online) Available
http://wiki.answers.com/Q/Venus's'_position_in_the_solar_system
• “Venus: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Venus&Display=Facts&Syst
em=Metric
• “Atmosphere of Venus” (Online) Available
http://www.universetoday.com/14146/atmosphere-of-venus/

Resources
• “Earth’s Orbit” (Online) Available
https://www.google.com/webhp?source=search_app#bav=on.2,or.r_cp.r_qf.&fp=9571ee7ad6fb1ce4
&q=Earth's%20orbit
• “What is the position of the Earth in the Solar System?” (Online) Available
https://www.google.com/webhp?source=search_app#bav=on.2,or.r_cp.r_qf.&fp=9571ee7ad6fb1ce4&q=
Earth's%20orbit
• ”Earth: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Earth&Display=Facts
• Choi, Charles Q “Earth: Planet Composition, Atmosphere & Science facts” (Online) Available
http://www.space.com/54-earth-history-composition-and-atmosphere.html
• Sharp, Tim “What is Earth made of?” (Online) Available
http://www.space.com/17777-what-is-earth-made-of.html
• “Earth’s Rotation” (Online) Available http://en.wikipedia.org/wiki/Earth's_rotation
• “The Earth’s Atmosphere” (Online) Available
http://liftoff.msfc.nasa.gov/academy/space/atmosphere.html

Resources
• “Earth’s Moon: Formation, Composition and Orbit” (Online)
Available
http://www.space.com/55-earths-moon-formation-composition-and-
orbit.html
Sunday 25th August 2013
• “The Moon” (Online) Available http://resources.woodlands-
junior.kent.sch.uk/time/moon/facts.htm
• “Moon Facts for Kids” (Online) Available
http://www.sciencekids.co.nz/sciencefacts/space/moon.html
• “The Moon” (Online) Available
http://www.planetsforkids.org/moon-moon.html Sunday 25th
August 2013

Resources
• “Mars: Read More” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mars&Display=OverviewLon
g
• “Mars: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mars&Display=Facts
• Coffey, Jerry “Atmosphere of Mars” (Online) Available
http://www.universetoday.com/22587/atmosphere-of-mars/
• Coffey, Jerry “What is Mars made of?” (Online) Available
http://www.universetoday.com/14702/what-is-mars-made-of/
• Coffey, Jerry “Mars Rotation” (Online) Available
http://www.universetoday.com/14889/mars-rotation/
• “What is Mars Position in the Solar System?” (Online) Available
http://www.ask.com/question/what-is-mars-position-in-the-solar-system
• Coffey, Jerry “Orbit of Mars” (Online) Available
http://www.universetoday.com/14828/orbit-of-mars/

Resources
• “Composition of Jupiter” (Online) Available
http://library.thinkquest.org/28327/main/universe/solar_system/planets/jupiter/interior/composition.html
• Villanueva, John Carl “Jupiter’s Atmosphere” (Online) Availablhttp://www.universetoday.com/40577/jupiters-
atmosphere/
• Cain, Fraser “Rotation of Jupiter” (Online) Available
http://www.universetoday.com/23914/rotation-of-jupiter/
• Coffey, Jerry “Orbit of Jupiter” (Online) Available
http://www.universetoday.com/15113/orbit-of-jupiter/
• “What is Jupiter’s Position in the Solar System?” (Online) Available
http://wiki.answers.com/Q/What_is_Jupiter's_position_in_the_solar_system
• “Jupiter: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Jupiter&Display=Facts&System=Metric
• Coffey,Jerry “Jupiter’s Great Red Spot” (Online) Available http://www.universetoday.com/15163/jupiters-great-
red-spot/

Resources
• “Where is Saturn in the Solar System?” (Online) Available
http://wiki.answers.com/Q/Where_is_Saturn_in_the_solar_system#
Tuesday 13th August 2013
• Cain, Fraser “Orbit of Saturn” (Online) Available http://www.universetoday.com/24168/orbit-of-saturn/
• Cain, Fraser “Rotation of Saturn” (Online) Available http://www.universetoday.com/24164/rotation-of-saturn/
• “Our Solar System: Moons” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=SolarSys&Display=Moons
• “Saturn’s Moons” (Online) Available
http://www.enchantedlearning.com/subjects/astronomy/planets/saturn/saturnmoons.shtml
• Coffey, Jerry “What is Saturn Made Of?” (Online) Available http://www.universetoday.com/15301/what-is-
saturn-made-of/
• Cain, Fraser “Atmosphere of Saturn” (Online) Available http://www.universetoday.com/24029/atmosphere-of-
saturn/
• Cain, Fraser “How Many Rings does Saturn Have?” (Online) Available
http://www.universetoday.com/38097/how-many-rings-does-saturn-have/

Resources
• Cain, Fraser “Atmosphere of Uranus” (Online) Available
http://www.universetoday.com/18859/atmosphere-of-uranus/
• “What is Uranus Made Of?” (Online) Available http://www.space.com/18706-uranus-composition.html
• Cain, Fraser “Uranus” (Online) Available http://www.universetoday.com/18855/uranus/
• Cain, Fraser “Orbit of Uranus” (Online) Available http://www.universetoday.com/19105/orbit-of-
uranus/
• “Where is Uranus in the Solar System?” (Online) Available
http://wiki.answers.com/Q/Where_is_Uranus_in_the_the_solar_system
• “Our Solar System: Moons” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=SolarSys&Display=Moons
• “Uranus: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Uranus&Display=Facts
• Fraser Cain “How Many Rings Does Uranus Have?” (Online) Available
http://www.universetoday.com/38182/how-many-rings-does-uranus-have/

Resources
• “Neptune: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune&Display=Facts
• “How long does it take Neptune to rotate on its axis?” (Online) Available
http://wiki.answers.com/Q/How_long_does_it_take_Neptune_to_rotate_on_its_axis
• “Neptune: Moons” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune&Display=Sats
• “Moons of Neptune” (Online) Available http://en.wikipedia.org/wiki/Moons_of_Neptune
• “What is Neptune Made Of?” (Online) Available http://www.universetoday.com/21596/what-is-neptune-made-
of/
• “What is Neptune’s Position in the Solar System?” (Online) Available
http://wiki.answers.com/Q/What_is_Neptune's_position_in_the_solar_system
• Cain,Fraser “Ring of Neptune” (Online) Available http://www.universetoday.com/21635/rings-of-neptune/
• “Great Dark Spot” (Online) Available http://en.wikipedia.org/wiki/Great_Dark_Spot

Resources
• “Ceres: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwa_Ceres
• “Ceres(Dwarf Planet)” (Online) Available
http://en.wikipedia.org/wiki/Ceres_(dwarf_planet)
Wednesday 14th August 2013
• “What is the Temperature of Ceres?” (Online) Available
http://wiki.answers.com/Q/What_is_the_temperature_of_Ceres
• Wednesday 14th August 2013
• “What is Ceres’ location in the Solar System?” (Online) Available
http://wiki.answers.com/Q/What_is_ceres'_location_in_the_solar_system
• Evans, Mona “Ceres Facts for Kids” (Online) Available
http://www.bellaonline.com/articles/art2172.asp
• “Facts about Ceres” (Online) Available http://www.8planets.co.uk/facts-
about-ceres

Resources
• “Eris: Facts and Figures” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwa_Eris&Display=Facts
• “Eris” (Online) Available http://www.conservapedia.com/Eris
• “Fast Facts: Dwarf Planet, Eris” (Online) Available http://amazing-
space.stsci.edu/resources/fastfacts/eris.php.p=Teaching+tools@,eds,tools,%3ESolar
+system@,eds,tools,topic,solarsystem.php%3EOverview%3A+Dwarf+planet*com*+Eri
s+facts@,eds,overviews,fastfacts,eris.php.r%3Deris&a=,eds
• “What is Eris Made Of?” (Online) Available
http://www.ehow.com/facts_7329490_eris-made-of_.html
• “Facts about Eris” (Online) Available http://www.8planets.co.uk/facts-about-eris
• “Dysnomia (Moon)” (Online) Available
http://en.wikipedia.org/wiki/Dysnomia_(moon)

Resources
• “Pluto” (Online) Available
http://www.kidsastronomy.com/pluto.htm
• “Pluto” (Online) Available
http://library.thinkquest.org/C005921/Pluto/plutLoc
Orb.htm
• “What Pluto and Charon Made Of” (Online) Available
http://www.windows2universe.org/pluto/pluto_com
position.html

Resources
• “Comets: Overview” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Comets
• “Meteor & Meteorities: Overview” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Meteors
• Monday 26th August 2013
“Asteroids: Overview” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Asteroids
• “What Are Asteroids?” (Online) Available
http://www.kidsastronomy.com/asteroid.htm
• “Comets” (Online) Available http://www.kidsastronomy.com/comets.htm
• “Meteoroid Facts For Kids” (Online) Available
http://www.sciencekids.co.nz/sciencefacts/space/meteoroids.html
• “Meteors” (Online) Available
http://scienceforkids.kidipede.com/physics/space/meteor.htm

Resources
• “Haumea: Overview” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwa_Haumea
• “Makemake: Overview” (Online) Available
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwa_MakeMake
• “Mars/Earth Comparasion Table” (Online) Available
http://phoenix.lpl.arizona.edu/mars111.php
Tuesday, 27th August 2013
• “Comparison of Earth and Mars” (Online) Available
http://library.thinkquest.org/5579/comparison/marsearth.htm
• “Planet Earth vs. Planet Mars” (Online) Available
http://planets.findthedata.org/compare/3-4/Earth-vs-Mars
• “Earth and Mars” (Online) Available http://www.universetoday.com/22677/earth-
and-mars/
• “Differences and Similarities between Earth and Mars” (Online) Available
https://sites.google.com/site/earthandmars93/sub-page-6

Compare and Contrast Earth and Mars- 1st Formative Task

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