This document contains a science web quest with information about the planets in our solar system as well as other celestial bodies. It provides details about each planet's composition, unique features, moons, and more. For example, it notes that Mercury has no atmosphere and Venus spins clockwise unlike other planets. Earth's atmosphere contains nitrogen, oxygen and trace gases. Mars may have ancient bacteria. Jupiter spins very fast and has a giant storm. Saturn has a low density and seasons lasting over 7 years.

1. Science Web Quest Alex Wang 8C

2. General Information 1) The circling of a smaller object around a larger object 2) The spinning of an object on its axis 3) 13 4) Mercury, Venus, Earth, Mars 5) Jupiter, Saturn, Uranus, Neptune 6) The inner planets are mostly rock while the outer planets are mostly gas. 7) Inner planets have smaller orbits so they are more likely to get hit. 8) A specific path followed by a planet, satellite, etc 9) must be in orbit around the Sun, have enough mass so that it has become round in shape due to its own gravity, and have cleared out its orbital path around the Sun 10) Objects that have met the first two requirements to be planets, but don’t have the third 11) Pluto, Ceres, Eris

3. Mercury 1) It is very close to the sun. It has no substantial atmosphere. 2) helium, sodium 3) Impact cratering, tectonic activity, volcanism

4. Venus 1) It is the brightest planet that can be viewed from Earth. 2) carbon dioxide, sulfuric acid 3) spinning on its axis clockwise 4) One rotation takes 243 days, which is longer than one revolution 5) It spins clockwise unlike the other planets 6) Its atmosphere of carbon dioxide and sulfuric acid traps heat

5. Earth 1) oxygen, nitrogen, argon, water vapor, carbon dioxide, neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, ozone 2) solar radiation, meteors 3) 23.5 degrees 4) The rapid spin of the Earth along with the liquid, hot metallic core . 5) the Moon

6. Mars 1) meteors have ancient tiny bacteria 2) carbon dioxide 3) It has iron. 4) a volcano 5) Phobos, Deimos

7. Jupiter 1) It spins really fast so it bulges in the center and is flat at the poles. 2) hydrogen, helium, sulfur, nitrogen 3) a hurricane-like storm 4) 63 5) It’s volcanically active.

8. Saturn 1) hydrogen, helium 2) The rings developed from particles that resulted from the break-up of naturally occurring satellites. 3) ice, dust 4) It has a really low density. 5) One season lasts 7.365 years

9. Uranus 1) It rotates on its side. 2) hydrogen, helium, methane 3) 27

10. Neptune 1) ammonia, helium, methane 2) 13 3) Triton was a satellite that got into the gravitational pull of Neptune.

11. Pluto 1) Charon, Nix, Hydra 2) They found methane frost. 3) Charon might share an atmosphere with Pluto.

12. Ceres 1) 4.6 years 2) It was in the Asteroid Belt. 3) water, ice, carbonates, clays

13. Eris 1) Xena 2) 557 years 3) Dysnomia 4) Eris did not meet the requirement that a planet must clear out its orbit.