| A | B |
|---|
| TINY SPACE ROCK | METEOROID |
| HARD CENTER OF A COMET | NUCLEUS |
| ROCK BURNING UP AS IT ENTERS OUR ATMOSPHERE | METEOR |
| SWARMS OF SPACE ROCKS BURNING THROUGH THE NIGHT SKY | METEOR SHOWER |
| THE CLOUD OF GLOWING GAS AROUND A COMET | COMA |
| THE GAS PUSHED OFF A COMET BY THE SOLAR WIND | COMA |
| ANY SPACE ROCK THAT REACHES THE GROUND | METEORITE |
| A DIRTY ICE MASS THAT ORBITS THE SUN | COMET |
| A THOUSAND METEOROIDS WERE CAPTURED BY THIS | STARDUST |
