Plates
These are the remains or traces of a dead animal or plant that have been preserved for a long time.
What are fossils
Plates that move away from each other at this boundary
divergent boundary
Magma that reaches the Earth's surface is called?
Lava
The instrument used to measure seismic waves is called
Seismograph
List 2 things you may notice along a transform boundary.
Small ponds with valleys, earthquakes, slickensides
How did the Hawaiian Islands form?
What is volcanic activity
When plates move together and the denser one sinks below.
What is subduction
Volcano with steep sided with explosive eruptions. Layers of ash and hardened lava alternate making its steep sides
Composite
The place on Earth's surface above where the rock breaks during an earthquake is called the
Epicenter
Deep ocean trenches which are valleys on the ocean floor are formed at what type of boundary?
Divergent
What ocean is the ring of fire found in?
What is the pacific ocean
the region where about half of the active surface volcanoes on Earth are located.
Ring of fire
A method for putting events in the order in
which they happened.
Relative Dating
Stick- Slip motion between plates causes these
Earthquakes
Magma
If a volcano has erupted recently it is considered to be...
What is active
thinner
Describe the movement of both P-waves and S waves. Which is faster?
P waves move faster and moves with forward and backward motion
S waves move slower and moves side to side
________________________of the Earth includes the crust and upper mantle.
Lithosphere
If a volcano that is quiet now but may erupt in the future is called...
Dormant
This states that new sea floor is created at mid-ocean ridges and in the process continents are pushed apart.
Sea floor spreading
Flatter slightly sloped volcanoes with runny lava
Shield
Small earthquake that occurs after a strong earthquake is called?
Aftershocks
This boundary has plates that slide past one another
Transform fault boundary