Fossils/history
Preserved remains or traces of living things.
Fossil
Two plates slip past each other
Transform boundary
Earths first layer.
What is the crust?
Formed when lava hardens over time.
What is an igneous rock?
What is causing the movement of the tectonic plates?
Convection currents
Era home to the dinosaurs
MESOZOIC ERA
Two plates pushing towards each other
Convergent
What layer of the earth has convection currents
mantle
Often formed when weathering and erosion break down a rock into loose material in a source area.
What is a sedimentary rock?
Name of the super continent
PANGEA
What marks and end to an ERA
An end to an era is marked as a mass extinction or an abundant loss of life
Plate boundary that causes mountains
convergent plate boundaries
Earths layer that is molten metal
What is the outer core.
Formed when rocks are close to some molten magma, so get heated up and have added pressure.
What is a metamorphic rock?
Name of area where most volcanic activity is found
ring of fire
The older the rock means the ___________ it is
Deeper
Old rock gets new rock layered on top of it.
In lab pulling the snickers apart was which type
Divergent boundary
The inner core is molten rock T/F
F
What type of rock is obsidian
Igneous rock
What layer of the earth do plate tectonics "float" on
mantle
When was the first dinosaur fossil identified as a dinosaur. Closest team wins
1824
An area of many fractured pieces of crust along a large fault.
Fault zones
What two metals make up most of the core
iron and nickel
Name a rock and its type, it cannot be obsidian
Keep answers up
who founded plate tectonics
Alfred Wegener