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Across 2. upright pole supporting sails or other things 5. middle point, also the fourth word in our book title 6. to bburst forth suddenly or violently 9. to shake in quick, short movements especially from fear 11. amazing, marvelous, astonishing 12. an upwardly curved structure 15. the ends of a magnet (North and South) 16. having harsh, hard, rough, pointed edges 19. main conflict of this book 25. teacher at a college or university 26. state of being overwhelmingly surprised or astonished 27. non-living (abiotic) substances in nature 28. instrument for finding directions 29. study of the Earth and its rocks

Down 1. common minerals in crystal form 3. a unit of measurement equalling six feet 4. cavity on the Earth's surface 5. time period of 100 years 7. globes of fire, like meteors or shooting stars 8. explain in terms of another language 10. tool used to loosen soil, a mattock 13. female godchild who is being baptised 14. force put on an object or person by air 17. hard, durable, coarse-grained rock 18. author of our book 20. water traveling in fast, circular motion creating a downward spiral 21. wood floating on a body of water 22. things used to represent something else, like tokens or emblems 23. hollow space in the Earth usually in hill or mountain 24. large island in North Atlantic Ocean near Greenland