Worksheet: Types of Rock

In this worksheet, we will practice identifying igneous, sedimentary, and metamorphic rocks and describing their composition and physical properties.

Q1:

A rock is formed from magma that cooled slowly to form large crystals without penetrating the Earth’s surface. Which type of rock is it?

  • AExtrusive igneous
  • BIntrusive igneous
  • CSedimentary
  • DMetamorphic

Q2:

A rock is formed from magma that penetrated the Earth’s crust as lava and cooled quickly to produce small crystals. Which type of rock is it?

  • AExtrusive igneous
  • BSedimentary
  • CMetamorphic
  • DIntrusive igneous

Q3:

A rock has been heated under high pressure, deep beneath the surface of Earth. It is extremely hard. Which type of rock is it?

  • AMetamorphic
  • BSedimentary
  • CExtrusive igneous
  • DIntrusive igneous

Q4:

A rock is formed of thousands of fragments, compacted and cemented together in layers. Which type of rock is it?

  • AExtrusive igneous
  • BMetamorphic
  • CIntrusive igneous
  • DSedimentary

Q5:

The following are the three stages in the formation of sedimentary rocks placed out of order:

  1. Sedimentation
  2. Cementation
  3. Compaction

In which order do these stages occur?

  • A3, 2, 1
  • B3, 1, 2
  • C1, 3, 2
  • D2, 3, 1
  • E2, 1, 3

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