Tectonic Plates Crossword

__________causes plate tectonics?
A volcano is a__________to the earth's interior.
The crust and upper mantle is the__________.
__________occurs at a transform boundary?
Lava is called__________before it erupts.
__________is another word for composite volcano.
The__________plate is the biggest tectonic plate.
The hottest part of the Earth's interior is the__________.
A__________volcano is the less dangerous volcano.
It is called__________when the plates move.
The__________plate is the name of two continents combined.
A mountain would most likely form at a__________boundary.
The sub-continent of__________collided with Asia to make the Himalayas.
There are__________major tectonic plates.
The earth's crust is__________kilometers deep.
Geological__________is periods of thousands, millions, or billions of years.
True or false? Each continent has its own tectonic plate.
Yucca Mountain was formed less that 50__________years ago.
__________is the only U.S. state still expanding in size.
There are__________types of plate boundaries.