Layers of the Earth
The study of the makeup of the Earth and the processes that change and shape it is called......
Geology
These are formed when earthquakes occur in the oceanic crust, causing the seafloor to shift.
What is a tsunami?
Is the following statement true or false? "Earth's tectonic plates have been slowly moving and interacting for billions of years."
What is true?
What do myths help explain?
What are unpredictable natural events?
According to Alfred Wegener's continental drift theory, a long time ago, the Earth was one huge land mass with this name.
What is Pangaea?
This layer of the Earth is the largest and thickest layer, consisting of very hot, very dense, rock.
What is the mantle?
This is how fast a tsunami can travel.
What is as much as 500 miles an hour.
The numbers on this scale measure the magnitude of an earthquake.
What is the Richter Scale?
A volcano that has not erupted for at least 10,000 years and not likely to erupt again is called this.
What is extinct?
A volcano that hasn't erupted for a very long time but could erupt again is called this?
What is dormant?
This layer of the Earth is solid, made of very hot metal; may be nearly as hot as the sun's surface; innermost layer.
What is the inner core?
Tsunamis can become as tall as this.
What is a 3 - 4 story building?
Moving apart, colliding, and sliding sideways past one another are three ways in which ________________________ move.
What are tectonic plates?
Volcanic myths often explain volcanic activity by blaming it whom?
What are gods and goddesses?
True or False. According to Wegener's continental drift theory, as continents moved further away from each other, their climates began to change.
What is true?
This layer of the Earth is the thin, rocky; outermost layer; there are two types: oceanic and continental.
What is the crust?
If there is a warning of a tsunami, you should do this.
What is go to higher ground?
Earthquakes begin with huge blocks of rock moving along this.
What is a fault?
When tremendous pressure and heat in the mantle force magma in a chamber below Earth's crust to move upward through a crack in Earth's surface, it erupts from the volcano top as this.
What is lava?
Geysers, volcanoes, and hot springs form both along plate boundaries and above this.
What are hotspots?
This layer of the Earth, is liquid; made of very hot metal.
What is the outer core?
True or false. Tsunami can be prevented from happening.
What is false?
This machine shows the energy of seismic waves.
What is a seismograph?
A volcano that has erupted in the past 10,000 years and is likely to erupt again is called this.
What is active?
The fact that groups of plants and animals that once lived together were separated as the continents moved apart helped support this hypothesis created by Alfred Wegener.
What is the continental drift hypothesis?