Igneous rocks
Which igneous rock has no visible crystals?
What is obsidian
What is a shield volcano?
This layer can very in thickness and is exposed on Earth's surface.
What is the crust?
What is continental drift?
Igneous rocks with large crystals formed in which environment?
What is intrusive?
This volcano is more steep on its sides and has more violent and explosive eruptions.
What is a stratovolcano?
This is the layer of Earth that is semi-solid and has a taffy like consistency. This drives the movement of the tectonic plates.
What is the asthenosphere?
What is the name of the supercontinent that was theorized by Wegener?
What is Pangea?
Igneous rocks cannot form this, but sedimentary rocks can due to the process of formation of each rock type
What is a fossil?
This type of natural event can be an indicator that a volcano will erupt.
What is an Earthquake?
This layer of the Earth is solid, and is contained within the upper mantle and the crust. This layer contains tectonic plates.
What is the lithosphere?
This is the area where two tectonic plates meet and where there is extensive volcanic and earthquake activity.
What is a plate boundary?
This igneous rock has holes on its surface in them and is very light weight
Volcanoes that have erupted in recent time and are continuing to erupt are classified under this category.
What is an active volcano?
Which of the Earth's layers is the most dense?
Inner core
What is density?
If an igneous rock has holes on its surface it was most likely formed in this environment.
This is an active stratovolcano that erupted in Washington in 1980, and is used widely by volcanologists to study volcanic activity.
What is Mount Saint Helens?
This layer of the Earth is separated into two different parts, upper and lower, with the upper part being denser than the lower part.
The movement of the plates is influenced by this type of current within the asthenosphere.
What is a convection current?