Homeroom:
H.Y. et al. to deliver bins
Pass out notices
Review SEL schedule
Do Now:
COPY YOUR HOMEWORK (TO BE COMPLETED) INTO YOUR ASSIGNMENT NOTEBOOK
LEAVE IT OPEN ON THE TABLE FOR ME TO CHECK.
Please get out your copy of Convection, Conduction and Radiation Practice (worksheet)
Homework To be Completed:
G&L Week 4 Quiz Tomorrow
Also Remember:
G&L Wk5 Definitions due Thursday
G&L Wk5 FCs due Friday
Today’s Lesson:
Review: Convection, Conduction and Radiation Practice (worksheet)
Reading and Direct Instruction:
Read Convection In Earth’s Mantle
Highlight key notes
Diagram and annotate in Student Notebooks
Complete Convection Currents in the Mantle Graphic Organizer worksheet
Reverse side only
Review
8-Curie - (Pass back G&L Week 3 Quiz)
Review.
Pass back Earth’s Interior Fact Check
Review
Make flashcards and show them to me tomorrow.
Retest on this material required for grades of 14 or lower.
Grades of 15 or higher excused.
DI: Why do plates move?
Earth’s surface is broken up into 7 major tectonic plates.
plus some smaller (>5%)
These move about over time at about 2” per year.
How can they move?
The plates float on a gooey layer of the mantle that helps move them
The plates are are solid rock
Granite continents
basalt ocean floor
They float on the mantle because they are less dense.
The upper mantle is hot and soft magma - it flows slowly
like tooth paste
It slowly circulates - pushing the plates along with it.
The circulation is called convection.
Convection is the flow of a fluid as its density changes from heating and cooling.
Heating a fluid makes it less dense - so it rises.
Cooling a fluid makes it more dense - so it sinks.
Heating and cooling can cause a circulation current.