Earth Sciences 1022A/B Lecture Notes - Lecture 2: Geosphere, Hydrosphere, Big Bang

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 1022A/B
• Professor: Cam Tsujita

Document Summary

1) earth is the only planet to have water exist in 3 distinct states (as far as we know presently: gas, liquid, solid. 2) it is the only planet that hosts complex life: as we know. 3) only planet with an outer crust (lithosphere) that shows evidence of relative movement plate tectonics. Energy and matter are freely exchanged throughout these systems. The other two alternatives are isolated and. Open systems: open all matter and energy can enter freely. Isolated no matter or energy can enter. It is also possible to convert energy to matter: this is the basis of the creation of the universe. Earth"s moon: the moon is thought to have been created. It is thought that a mars sized asteroid collided with earth and broke off a moon seized chunk: this took orbit around the earth and. Hard outer shell: the lithosphere is not the same thing as the crust. It involves both the crust and the mantle.