Hotspots
Do hotspots move?
no
What is an example of a natural disaster/event that can be caused by tectonic plate movement?
Tsunami/Earthquake/Volcano eruption
What is Igneous Rock formed from?
Molten Rock/Magma/Lava
What are the Hawaiian Islands formed from?
A hotspot
What is the top layer of the Earth that we live on?
Crust
Where on the tectonic plates do hotspots form?
In the middle of the plate
What is the name of the plate boundary when 2 plates move apart?
Divergent
What are the 2 types of Igneous rock?
Intrusive and Extrusive
Yes - tectonic plates will continue to move
What is the first layer of the Earth (the most inside part)
What is a hotspot?
a place where very hot material rises from deep inside the Earth and melts through the crust to form a volcano
What is the name of the plate boundary when 2 plates collide?
Convergent
What is a key feature/characteristic of Sedimentary rocks?
Layers
Name 1 Hawaiian island (other than Hawaii) that we looked at for our assessment?
Kauai, Oahu, Molokai, Maui, Kilauea
Which 2 layers are included in the lithosphere
Crust and upper mantle
What role does the mantle plume have in formation of hotspots?
A column of very hot rock rising from the mantle - causes a hotspot to form
What is the name of the plate boundary when 2 plates are sitting side by side?
Transform
How do Metamorphic rocks form?
Heat and pressure applied to existing rocks
Which tectonic plate are the Hawaiian Islands located on?
Pacific plate
What role does the mantle play in the layers of the Earth? (what happens here?)
Convection currents
Explain how hotspots are involved in the formation of Hawaiian Islands
The hotspot melts through the crust and overtime the molten rock cooling in the ocean piles up on the sea floor and forms a volcano/island.
What is the name of the process of hot rock rising to the crust, moving the plates and then cold rock sinking back down to the mantle?
Convection current
Explain how rocks can transform from one type to another (i.e. Igneous to Sedimentary) using the rock cycle
Explain why the distance of the Hawaiian islands from the hotspot tell us which one is the oldest and the youngest?
The farthest from the hotspot = oldest
Closest to hotspot = youngest
Tectonic plates move the islands away from the hotspot
Where is the asthenosphere located in the Earths layers?
under the lithosphere