NT1330 Chapter 1 Crossword

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
1     2               3              
                            
 4              5                 
                            
 6             7                  
8                              
                            
   9    10                         
            11                  
                            
       12    13                     
                            
                14              
         15                     
                            
      16   17                       
                            
       18      19                   
                            
    20       21