Changing Earth

This game is about the changes that Earth has experienced with time, earthquakes and seismology.
What F is a fracture, or break in the Earth's lithosphere?. What E is a shaking of the ground caused by a sudden movement of large blocks of rock along a fault?. What D is a boundary which occurs where plates that are moving apart?. What C is a boundary which occurs where plates push together?. What T is is a boundary which occurs where plates scrape past each other?. What S is the force exerted when an object presses on, pulls on or pushes against another object?. What S are the vibrations caused by earthquakes?. What E is the point on Earth's surface directly above the focus of an earthquake?. What P are the fastest seismic waves?. What S is an instrument that constantly records ground movements?. What A is a smaller earthquake that follows a more powerful earthquake in the same area?. What L is a process in which shaking of the ground causes soil to act like a liquid?. What T is a water wave triggered by an Earthquake?. What P is the name of the super-continent which consisted of all the continents joined together?. What M is the name given to underwater mountain ranges?. What C is a hypothesis that continents move apart and once were one huge landmass?. What T are the large and small slabs of rock that the lithosphere is made of?. What C is the outermost layer of the Earth that is a thin layer of cool, solid rocks?. What L is the Earth's crust combined with the very top of the mantle?. What M is the Earth's thickest layer?.
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