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?

  • A Sedimentary
  • B Intrusive igneous
  • C Extrusive igneous
  • D Metamorphic

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?

  • A Metamorphic
  • B Sedimentary
  • C Extrusive igneous
  • D Intrusive 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?

  • A Sedimentary
  • B Metamorphic
  • C Extrusive igneous
  • D Intrusive 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?

  • A 3, 1, 2
  • B 2, 3, 1
  • C 1, 3, 2
  • D 2, 1, 3
  • E3, 2, 1

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