Types of Rocks

1
Types of Rocks

• Igneous- the type of rock that forms
• From melted material
• Sedimentary- the type of rock that forms
• As pieces or sediments press together
• Metamorphic- the type of rock that forms
• From changes to other rocks
• (Starting text page 74)

2
The Rock Cycle
3
Rock Material

• The earths crust or litohsphere is made of rocky
  material.
• Rocks are made of minerals that are pressed
  together
• Geologists observe the color and texture of rocks
  to determine their composition or make up. (See
  text page 76)

4
Words to know

• Igneous
• Metamorphic
• Sedimentary
• Sediments
• Intrusive igneous rock
• Extrusive igneous rock
• Fine grained
• Coarse grained
• Grain pattern
• Conglomerate