| A | B |
|---|
| Earth between moon and sun. | Lunar eclipse |
| Moon between Earth and Sun. | Solar eclipse |
| The solar system started as one giant planet, it blew up and formed the planets. | Big Bang Theory |
| The planets formed from clouds of dust. | Nebula Theory |
| A celestial body visible at night. | Star |
| When is the only time you can see a comet? | When it is close to the sun. |
| Made of ammonia and methane. | Comet |
| Number of constellations. | 88 |
| Object whose gravitational pull is so great that nothing can escape it. | Black Hole |
| Very dense part of a black hole. | Singularity |
| Closest star to earth. | Sun |
| The amount of mass of the solar system contained in the sun. | 99.8% |
| Is the gravity of the sun greater or less than that of earth? | Greater |
| Is the gravity of the moon greater or less than that of earth? | Less than |
| Amount of time it takes to go around the sun. | Revolution |
| Amount of time it takes a planet to turn on its axis. | Rotation |
| He developed the heleocentric theory of the Solar System. | Copernicus |
| He made the first good telescope;Proved Copernicus' theory. | Galileo |
| Everything revolves around the sun. | Heleocentric Theory |
| He developed the laws of motion and gravity. | Newton |
| He developed the theory E=MC2 | Einstein |
| Russian space station. | Mir |
| National Aeronautics and Space Administration. | NASA |
| Year of the first lunar landing. | 1969 |
| Parts of a comet | Head(nucleus), Body (coma) and Tail |
| First artificial satellite in space. | Sputnik |
