What are the different types of plate boundary?

Section	Detail
Key Ideas	The 3 main types of plate boundary, destructive, contructive and conservative are all different. Examples of the boundaries are important to remember.
Terms	Convection currents, destructive margin, constructive margin, conservative margin, subduction, collision
Starter	Lava image – where is that happening? What makes it liquid? Convection currents animation
Main	1.   TDIT 2.   World map of tectonic plates 3.   Plates jigsaw 4.   Annotate plate margin cross-sections (below) using NT p10/11 D, E, F 5.   Add examples: ·         Destructive (subduction) = Nazca moving under South American – Andes Mts ·         Destructive (collision) = Indian towards Eurasian – Himalaya Mts ·         Constructive = Eurasian & North American away from each other - Mid Atlantic Ridge/Iceland ·         Conservative = Pacific & North American moving alongside each other – San Andreas Fault, California
Plenary	a.   How quickly do plates move? b.   Give an example of a conservative plate margin. c.   What happens at a destructive plate boundary? d.   How was Iceland formed?

Convection Currents

World Map of Plate Margins

Plate jigsaw

Why is the earth's crust unstable?

Section	Detail
Key Ideas	The earth's crust is unstable, especially at plate boundaries. There are differences between oceanic and continental plates.
Terms	crust, plate, plate boundary/margin, mantle, convection currents
Starter	Apple. NT p8 A
Main	1.   TDIT. 2.   Students draw cross-section of earth and annotate with Key Terms. 3.   Pack of cards/plates simile. 4.   Students examine examples of basalt and granite for differences between oceanic and continental crust (physical and/or videos below). 5.   Students draw diagram NT p9 B 6.   NT p9 Qus 2b
Plenary	a.   What are the two types of plate called? b.   Give one difference between them. c.   What is the name for where plates meet? d.   What causes the plates to move?

Granite

Basalt