Across
- 4. also known as light of day
- 5. around the north pole
- 6. over a period of time
- 8. appears to increase in size
- 10. caused by gravitation
- 12. different times
- 13. a movement in a circle on a central axis
- 14. the rise and fall of sea levels
- 17. dividing the earth into northern and southern
- 19. gives us light at night
- 20. least difference between high and low water
Down
- 1. the planet we live on
- 2. half of the planet
- 3. appears to decrease in size
- 7. gives us light during the day
- 9. an imanginary line
- 11. Earths southmost content
- 14. a sloping position
- 15. marked by changes of weather
- 16. warmest of the four temperate seasons
- 18. to move in a circle around an axis or centre