Rocky Earth Crossword Puzzle

QUESTIONS LIST:

• mineral : a nonliving substance occurring naturally in the earth
• rock cycle : the process by which rocks of one kind change into rocks of another kind
• luster : the way that light affects the surface of a rock or mineral
• magma : the liquid rock stored in earth's crust
• lava : the magma that comes out of a volcano when it erupts
• crystal : a solid with a highly ordered structure
• sediment : a bit of rock that is carried and then settles into the bottom of water
• foliated : when layers of in rock are formed by pressure from only one direction
• extinction : when one kind of organism dies and no longer exists on earth
• fossil : the remains of plants or animals from long ago, like bones or marks on a rock