| A | B |
|---|
| Who discovered the laws of motion? | Sir Isaac Newton |
| What pulls objects to earth? | gravity |
| The object the earth orbits is the_______? | sun |
| the object the moon orbits is the_______? | earth |
| what causes change in speed or direction of motion? | force |
| the term referring to anything beyond the earth's atmosphere is ______? | astronomy |
| The unit of measurement used to measure distance in space is the ______? | light year |
| what travels at a speed of 186,000 miles per SECOND? | light |
| galaxies are huge collections of ____? | stars |
| a third of all known galaxies are what shape? | spiral |
| what has the following 4 shapes: spiral, barred spiral, elliptical, & irregular? | galaxies |
| the closest star to the earth is the | sun |
| Our galaxy is called the__________? | Milky Way |
| many ___ were named after characters or objects from ancient Greek myths. | constellations |
| what device is used to see things that are far away in space? | telescope |
