Underground, they are formed when the melted rock, called __________, deep within the earth becomes trapped in small pockets.
(they; are formed; T:when the melted rock, called __________, deep within the earth becomes trapped in small pockets) (the melted rock; called; __________) (the melted rock, called __________, deep within the earth; becomes; trapped in small pockets) (the melted rock, called __________, deep within the earth; trapped; in small pockets)
they the melted rock the melted rock, called __________, deep within the earth the melted rock, called __________, deep within the earth
are formed called becomes trapped
T:when the melted rock, called __________, deep within the earth becomes trapped in small pockets
__________
trapped in small pockets
in small pockets