Plate tectonics and fold mountains
What is the hottest layer of earth?
The inner core
What is the most common rock in Ireland?
Limestone
What is the name given to volcanoes that erupt regularly?
Active volcano
What is the name given to the tidal waves that can occur from an earthquake on the ocean floor?
Tsunami
What are clints and grikes?
These are the cracks and blocks that make up a limestone pavement
What was it called 250 million years ago, when all the plates were together?
Pangaea
What is the area of basalt rock in Antrim called?
The Giant's Causeway
Where do most of earth's volcanoes occur?
Pacific ring of fire
What is the name given to the smaller earthquakes that happen after the main one?
Aftershocks
What is the type of mechanical weathering that involves water freezing and breaking rock?
Freeze-thaw action
What are the upfolds and downfolds in a fold mountain called?
Anticlines and synclines
What type of rock forms from an existing rock?
Metamorphic
Where is magma stored in the crust?
Magma chamber
What is the epicenter?
This is where the earthquake is strongest
What is a stalactite?
A calcite deposit that hangs from the roof of a cave
What is the period of armorican folding?
This period created much of Ireland's fold mountains around 250 million years ago
What is the cycle called that shows how all rocks change?
The rock cycle
What type of energy is made through volcanic activity?
Geothermal energy
How can people prepare for earthquakes?
Reinforced buildings, earthquake drills, emergency kits
What is the name given for rocks that allow water to pass through?
Permeable
How do plates move?
Convection currents
What rock forms from the cooling and solidification of lava?
Extrusive igneous rock
What are the positives of volcanic activity?
What is used to state the energy or strength of an earthquake?
Magnitude or Richter scale
What is the name given to the different layers of rock?
Strata