| A | B |
| which is the smallest planet? | Mercury |
| Mercury has ____ atmosphere | no |
| Venus has a ____ atmosphere | thick CO2 |
| Venus has a _____ ______ effect | runaway green house |
| Venus is also refered to as | evening / morning star |
| Mars has ___ caps | ice |
| The large volcano on Mars | Olympus Mons |
| What is Jupiter Made up of? | H and He |
| Jupiter has _______ | layers |
| What planet is the fastest? | Jupiter |
| Jupiter is the most _____ | oblate |
| What is Saturn made up of? | H and He |
| Saturn is famous for its | Rings |
| Uranus is tilted on its _____ | side |
| What is Uranus made up of? | Methane |
| Neptune has the largest _____ | moon |
| What is Neptunes large moon named? | Tritan |
| Neptune has a huge _____ _____ | blue spot |
| Pluto crosses Neptunes _____ | orbit |
| Pluto is really not a ______ | planet |
| What are comets made of? | Ice |
| Where do comets come from? | debree and orc cloud |
| comets have a ____? | tail |
| the coma has ____ gas | dense |
| the comets nucleus is made up of | rock |
| What are the 3 types of meteors? | meteors, meterites, meteriods |
| what is a Meteor? | when they are in the earths atmosphere |
| what is a Meteorite? | when it has hit the earths surface |
| meteroid | when it is in space |
| whey do we see the meteors? | because they are burning up -friction- |
| asteroids are in _____ | orbit |
| what is the first theory about asteroids? | left over pieces from junk |
| what is the second theory about asteroids? | planet blew up btw. mars n' jupiter |
| What is Keplers law I. | all planets move in eleptical orbit |
| Keplers law II. | all planets change speeds |
| Keplers law III. | p2=a3 |