Leis de Newton

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