Across
- 1. An imaginary line that goes through the center of earth from the north pole to the south pole
- 3. The amount of time it takes a planet to revolve once around the sun
- 4. The spinning motion of earth on its axis
- 5. The sun and all objects that move around it
- 6. leaning to the side
Down
- 1. Term for earth tilted at 23.5 degrees
- 2. Movement of a satellite in its orbit
- 7. The period of time it takes for a planet to complete one rotation