1. Identify the three categories of rocks and explain how they are formed:
   

• Igneous
  
• Metamorphic
  
• Sedimentary
  

1. Explain the role of minerals in the formation of rocks.
   

1. Describe the following physical properties of common minerals:
   

• Hardness:
  
• Color:
  
• Luster:
  
• Cleavage:
  
• Streak Color: