Name ______Class ______Date ______

Rock Groups

Let’s hope you handle this assignment better than our “Rocker” above! You and each member of your group will soon be experts on the three rock types; igneous, sedimentary or metamorphic. Your group will be given one rock type at a time to study and become experts! Work with your group to complete the following questions, tests and tables.

Type : Sedimentary Rocks

Origins of Sedimentary Rock

  1. How does sedimentary rock form?
  1. Where does sedimentary rock form?
  1. What are strata?

Composition of Sedimentary Rock

  1. What are clastic sedimentary rocks?
  1. What are chemical sedimentary rocks?
  1. What are organic sedimentary rocks?
  1. How are clastic, chemical and organic SEDIMENTARY rocks alike? How are they different? Answer using the Rock-Venn diagram for SEDIMENTARY ROCKSbelow.

Clastic Chemical

Organic

  1. Complete the table forSEDIMENTARY ROCKSbelow. Use hand lenses.

Name of rock / Texture
(Coarse or fine grained) / Chemical, Clastic or Organic
#1
#2
#3
  1. In which form of sedimentary rock are you likely to find a fossil? ______

______End SEDIMENTARY ROCKS ______

Rock Type: Igneous Rocks

Origins of Igneous Rock

  1. How does igneous rock form?
  1. What role does temperature play in the formation of igneous rocks?
  1. What are intrusive igneous rocks?
  1. What are extrusive igneous rocks?
  1. How are intrusive and extrusive IGNEOUS rocks alike? How are they different? Answer using the Rock-Venn diagram for IGNEOUS ROCKSbelow.

Intrusive Extrusive

  1. Complete the tablefor IGNEOUS ROCKS below. Use hand lenses.

Name of rock / Texture
(Coarse or fine grained) / Rank of how fast
rock cooled (1-3) / Intrusive or Extrusive
#1
#2
#3

______End IGNEOUS ROCKS ______

Rock Type: Metamorphic Rocks

Origins of Metamorphic Rock

  1. How does metamorphic rock form?
  1. What roles do temperature and pressure play in the formation of metamorphic rocks?
  1. What is contact metamorphism?
  1. What is regional metamorphism?
  1. What are foliated metamorphic rocks?
  1. What are non-foliated metamorphic rocks?
  1. How are foliated and non-foliated METAMORPHIC rocks alike? How are they different? Answer using the Rock-Venn diagram for METAMORPHIC ROCKSbelow.

Foliated Non-foliated

  1. Complete the table forMETAMORPHIC ROCKSbelow. Use hand lenses.

Name of rock / Are the crystals aligned or not / Texture
(Foliated or Non-foliated)
#1
#2
#3

Critical Thinking!

  1. The Appalachian Mountains (in the south eastern U.S. States) were formed by folding.The piece of shalewas found at the base of the Appalachian Mountains. It was dug or blasted up to build a road. If this rock was near extreme heat and pressure within the earth, what do you predict the shale rock would become as it progresses through metamorphism? Explain your theory.

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