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Thank you for not chewing gum or anything else  Materials: Pencil Notebook Packet Lab Text D-48 Agenda: Bell work Activity 46- Convection Currents Study Guide Thursday, December 10, 2015 Daily Objective: Today we will investigate how convection currents cause plates to move. Daily Question: Explain what happens at a continental-oceanic convergent plate boundary.

Convergent Plate Boundary Oceanic/continental asthenosphere - is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement Subduction - process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge Ex: Andes Mountains Cascade mountain Range Subduction

Continental/Continental Convergent Plate Boundary Earthquakes Mountains Ex: Himalayan Mts.

Oceanic/Oceanic Convergent plate boundary. Trenches Volcanic Island mountains Earthquakes Ex: Solomon Islands

Hot Spots Hot Spot: volcanic regions thought to be fed by underlying mantle in which magma is trapped and hot compared with the mantle in other places. Ex: Hawaii & Yellowstone

Activity 46: Convection Currents Vocabulary: Convection- circulation of fluid due to differences in temperature Procedure: Carefully follow procedures 1-10 Analysis Questions: 1-4

Table 1. Convection Currents Observations Procedure # Trial 1 Hot/cold Trial 2 Cold/hot Draw arrows Describe Results Act 46 AQ 1-4

Mariana Trench https://www.youtube.com/watch?v=JMVX SZUXPf0