Across
- 3. period an orbital period is the amount of time it takes for an object to complete one orbit, or revolution
- 5. an asteroid is a small rocky object that orbits the sun
- 6. a moon is an object that orbits a plant
- 7. extraterrestrial refers to anything that is outside of the earth
- 9. an obit is the path that an object makes when it is traveling around another object
- 11. plane the ecliptic plane is an imaginary flat surface on which you could trace out the earth's path around the sun
- 14. distance orbital distance is the distance between an object and the body it is orbiting
Down
- 1. planet a dwarf planet meets 1 and 2 of a planet definition, but not part 3
- 2. a planet has the following properties, obits the sun
- 4. a meteorite is a very small rocky object in space
- 8. rotation is the spinning motion of an object that time it takes a planet to complete one rotation is the length of the plates day
- 10. a star is a large glowing sphere of gas held together by its own gravity. our sun is the nearest star to earth.
- 12. a crater is a bowl-shaped hole that has been blasted out of a surface
- 13. axis a rotation axis is an imaginary line around which an object rotates or spins