Earth Science Terminology
Across
- 2. Currents Occurs when there are differences in the temperature of water causing hot fluid to rise and cold fluid to sink
- 8. Plates The Earth’s crust is broken up into large pieces that move on the asthenosphere.
- 9. Plates Plates found underneath the land
- 10. Plates Plates found under the ocean
- 11. Plate Tectonic plate located under Africa
- 13. Plate Tectonic plate located under Australia
- 15. Outermost shell of the Earth
- 18. American Plate Tectonic plate located under South America
- 21. Includes the crust and the upper part of the mantle.It is divided into plates
- 23. Push Occurs when two plates move apart and molten magma rises up to fill the gap. As it cools it forces the older plates to move away (diverge)
- 24. Pull Occurs when the two plates collide and the denser plate sinks (with the help of gravity) into the mantle pulling the plate with it causing it to move
- 25. Wegener Proposed the theory of continental drift
Down
- 1. Puzzle Evidence that suggest the continents fit together like a jigsaw puzzle
- 3. American Plate Tectonic plate located under North America
- 4. Plate Tectonic plate located under Pacific Ocean
- 5. Ranges Evidence of CD that shows the mountain ranges on the border of North America, South America, Europe and Africa
- 6. Super continent where all the continents are joined.
- 7. Core Inner most layer of the Earth
- 12. Located between the crust and the outer core
- 14. Plate Tectonic plate located under Asia and Europe
- 16. Sediments carried by glaciers have been found in India, Australia, South America and Africa suggesting these continents had a cooler climate.
- 17. The semi-molten layer of the mantle directly below the lithosphere
- 19. Core Located between the inner core and the mantle
- 20. Evidence of CD that suggest animals could not have swam between continents.
- 22. of Continental Drift Theory that explains the gradual movement of continents across the earth’s surface