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Igneous Remedial (ES3B)

Igneous rocks remedial ES3B-3

  1. How are the mafic rocks (basalt and gabbro ) similar? Go beyond the obvious.  






  2. How are they different?  






  3. Using a lens and a sample of basalt sketch the crystal structure. A small detailed drawing is more helpful than a large scribble.  





  4. How are the felsic rocks (rhyolite and granite) similar?  






  5. How are they different?  






  6. Using a lens and a sample of granite sketch the crystal structure. A small detailed drawing is more helpful than a large scribble.  


 

Igneous formation remedial ES3B-4

  1. Intrusive igneous rocks form from an Earth material called _____________________________.
  2. Compare and contrast magma and lava.  






  3. Why do Phanertic (granite and gabbro) rocks have large crystals?  






  4. A rock with a porphyritic texture has large crystals "floating" in small crystals. Describe the cooling history of such a rock.  






  5. When Mr. Rick has no students, go up front and place the igneous rocks in the correct locations on his volcanic landform drawing. ___________