Across
- 3. The crustal plates sit on the ___ layer of the Earth.
- 5. When tectonic plates slide past each other creating friction,
- 6. Movement along a break in rock layers; can be caused by plate tectonics.
- 7. The more ___ & precipitation means more plants and more life.
- 8. A piece or trace of an organism that was once alive. They are mainly
- 11. This biome is characterized by dry & wet seasons but very cold.
- 12. ___ proposed the continental drift theory saying that at
- 15. time all continents joined together in a single land mass.
- 16. ___ currents in the mantle push the crustal plates around causing continents to drift & seafloors to spread.
- 17. This biome is characterized by dry & wet season. Temperature is hot.
- 18. never replace or renew them. Some believe they took millions of years to form.
- 19. Bending in rock layers caused by plate tectonics.
- 22. This forest biome is characterized by varying moisture throughout year. Has cool summers & cold winters.
- 24. This forest biome is characterized by evenly distributed moisture throughout year. Has warm summers and cold winters.
- 25. like a ___.
- 26. ___ warming is the planet becoming warmer through out the years.
- 27. Biomes with ___ temperatures have less amount of life living there.
Down
- 1. The theory that the Earth’s crust is made up of many plates that are floating on top of the Earth’s mantle layer which is molten
- 2. This biome is characterized by little rain & large daily change in temperature (hot in the day & cold at night).
- 4. Wegener’s final observation was that the continents fit
- 6. The main observation that supports Wegener’s theory is that identical ___ of an animal were found on different continents.
- 8. in sedimentary rocks.
- 9. Fossil fuels are considered ___ resources because we
- 10. ___ from mantle can erupt past space between 2 plates or melt
- 11. a soft crustal plate.
- 13. This biome is characterized by lots of rain with hot temperatures.
- 14. Burning fossil fuels & wood give off carbon dioxide (CO2). Some believe this is increasing the ___ effect and causing global warming.
- 20. rock.
- 21. When Earth’s plates collide & push up they can create ___ ranges.
- 23. ___ resources however can be replaced and renewed. Sunlight, water power, wind, wood, crops are all renewable resources.
- 28. Wegener also observed that identical ___ layers (formations) were found on many continents.