Earth and its interior

1. Earth and its interior BY: Ross Osborne

2. Volcanoes/Earthquakes

3. Volcanoes are caused by Convergent boundaries in the earths surface which is one plate going under another this can also cause mountains to form • These can be found near the colliding African and Indian plates • Earthquakes are caused by colliding plates known as transform boundaries which is two plates sliding against each other and can also cause landslides and mud slides • They can be found near the colliding Juan de fuca and north American plates

5. Pangaea • Pangaea is the name for the super continent formed by all of today’s continents • It ended up disbanding due to continental drift • It had disbanded millions of years before human existence so we only can guess about it because the continents can fit together like puzzle pieces (this concept originally wasn’t accepted) • Pangaea also means all of earth and was thought to exist during the Permian through Jurassic periods.

6. The original theory was known as anti-mobilist theory • The founder of the theory now a days (Alfred Wegner) was a accomplished geologist as well as meteorologist • The theory was supported by past explorers like magelon who saw how the continents fit together like puzzle pieces

7. Divergent boundaries • This kind of boundary causes trenches and can be found by the pacific and nazca plates

8. Our Home • We live on the North American plate which contains the united states • One plate we border is the Juan de Fuca plate • One hazard we can expect isearthquakesand be expected in the faceable future.

9. The information was found from these sites: • http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Continents.shtml • http://www.pbs.org/wgbh/aso/tryit/tectonics/shockwave.html • http://www.ucmp.berkeley.edu/geology/techist.html

10. The End