| A | B |
|---|
| solar system | made up of the sun and everything that surrounds it |
| revolution | when an object travels around another object in its orbit |
| rotation | when an object spins around on its axis |
| 29 1/2 days | How many days does it take the moon the make one revolution around the earth? |
| solar ecplise | when the moon passes between the earth and the sun |
| lunar eclipse | when the moon enters the earth's shadow |
| Halley's Comet | Circles the earth once every 76 years |
| 24 hours | amount of time is takes for the earth to complete one rotation |
| 365 1/4 | amount of days it takes to complete one revolution around the sun |
| asteroid belt | made up of asteroids, lies between Mars and Jupiter |
| moon | natural satellite of the earth |
| meteorite | a solid. rocklike object that floats in space |
| comet | large chunk of ice, frozen gases and dust that travel around the sun |
| 1-3 times | amount of times per year that a lunar eclipse occurs |
| full moon | 5th phase - when the whole moon is visible |
| new moon | 1st phase when you can not see the moon |
| corona | atmosphere surrounding the sun |
| asteroid | smal rocky body that orbits the sun |
| Ceres | largest known asteroid |
| satellite | any body in space that revolves around another body |
| Mercury | 1st planet; surface similar to moon; temp. range 427 C to -173 C 0.4 AU; 4,878 km |
| Venus | brightest from earth; thick blanket of clouds; dense atmosphere of CO2; 12. 104 km; 0,7 AU |
| Earth | 1 AU; 1 moon; 12, 756 km |
| Mars | red surface of iron oxide (rust); 2 moons; 1.5 AU; 6.787 km |
| Jupiter | 16 moons; largest planet; 1 ring; red spot - gian storm; colored bands; 5.2 AU; 142.980 km |
| Saturn | 18 moons; 10, 000 rings; 9.5 AU; 120,540 km |
| Uranus | 15 moons; 9 rings; greenish color; 19.2 AU; 51, 120 km |
| Neptune | 8 moons; 3 rings; 30.1 AU; 49, 530 km |
| Pluto | 1 moon; 39.8 AU; 23,000 km |
