Across
- 10. the layer of magma that the tectonic plates shift on
- 12. the section of a text that gives definitions
- 13. the ratio of kilometres on a map to kilometres on the earth
- 14. the molten centre of our planet that's responsible for the magnetic fields
- 15. the outer most layer of the earth
- 16. a graph that shows the number of people according to age and gender
- 17. how the population of a country is spread
- 19. mainly used to find your position in the world
- 20. the number of people born subtracted by the number of people who die
- 22. fast, low density expansion at the edges of cities
- 23. what entices someone to come to a country
- 24. a chain of countries and regions that experience an above average number of volcanoes and earthquakes
- 25. the number of people who die per thousand people
Down
- 1. branch of science that deals with the collection, analysis, and interpretation of data relating to the earth's surface.
- 2. power generated by funneling water through a dam
- 3. the building heat inside of the atmosphere
- 4. a kind of graph used to plot average temperature throughout the year
- 5. the number of people born per thousand people
- 6. the explanation of earthquakes tsunamis and volcanoes and why some continents look like they fir together
- 7. power generated using radioactive materials to heat water
- 8. uses the heat of magma pockets to generate power
- 9. the natural process of land formations being worn down over time by water and wind
- 11. a resource that is found naturally in the environment
- 18. what forces someone out of a country
- 21. an imaginary line around the middle of the earth