Kategóriák: Minden - convection - boundaries

a Taylor Wendel 5 éve

274

twendel_22@tipton.k12.ia.us

The Earth's surface appearance today results from several geological processes, primarily explained by theories like continental drift and plate tectonics. These theories describe how the continents were once a single landmass that broke apart due to the movement of tectonic plates.

twendel_22@tipton.k12.ia.us

History of Earth Project

What changes do rocks go through?

claim- rock cycle, igneous, sedimentary, and metamorphic rocks, compaction, cementation, and fossils

evidence- Igneous, sedimentary, and metamorphic can change into another type of rock

evidence- Compaction- the weight of overlying sediments cause pressure and push the sediments together

evidence- Cementation- minerals get left between sediments and provide a cement to hold the sediments together

evidence- Rock cycle- magma is the parent material for all rock, igneous, sedimentary, and metamorphic rock

connection- when i wake up in the morning, i go through a continuous cycle of changing outfits

Why does the surface of the Earth look like it does today?

resources- history of earth notes
claim- continental drift, plate tectonics, plate boundaries, convection

evidence- Continental drift- continents once formed as a single landmass and have broken apart to present day locations

evidence- Convection- heat transfer by the movement of heated fluid

evidence- divergent boundaries- move away from each other

evidence- Convergent boundaries- move towards each other

evidence- Transvergent boundaries- slide past each other up and down

connection- my friends were in a relationship as a whole landmass lol and then they broke up like what continental drift is. Where they split apart and it stays that way

How do we determine the age of the Earth?

Resources- history of Earth notes
Claim- accretion, crust, mantle, core

evidence- Relative dating- determining the age of an object by comparing its age to another object

evidence- Example- rocks in different layers in the crust

evidence- Absolute dating- determining the actual age of an object

evidence- Example- using radioactive decay to determine the actual age of a rock

connection- if i wanted to determine the exact age difference between my sister and i, then i would use a calculator to figure the exact difference just like absolute dating