 
  
  
  
  
  
  
  
  
   
  
CORE WORDS
 
  
  COMPOUND WORDS 
cleavage | {n} | (mineralogy: tendency of a crystal) | inclined plane | {n} | (simple machine) | Leaning Tower of Pisa | {prop} | (the tower) | oil shale | {n} | (shale from which hydrocarbons can be produced) | plain-winged antshrike | {n} | (bird) | schist | {n} | (crystalline foliated rock) | shale | {n} | (sedimentary rock) | shale gas | {n} | (natural gas) | slate | {adj} | (bluish-grey/gray like slate) | slate | {n} | (colour/color) | slate | {n} | (rock) | slate | {n} | (sheet of slate for writing on) | slate | {n} | (tile) | slater | {n} | (one who lays slate) 
   5000 WORDS 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   PHRASES
  
 |