The ORNL DAAC has created crossword puzzles and word searches for grades 1-7.
The puzzles and their answer keys are arranged by subject and are available for download as pdf files.


  Grades 1-2 Grades 3-4 Grades 4-5 Grades 6-7
Astronomy Word Search
Key		 Word Search
Key		 Word Search
Key		  
Ecosytems   Word Search
Key		   Crossword
Key
Energy   Word Search
Key		   Crossword
Key
Food Web   Word Search
Key		 Crossword
Key		  
Geology   Word Search
Key		 Crossword
Key		  
Planets Word Search
Key		 Word Search
Key		 Crossword
Key		  
Rocks   Word Search
Key		   Crossword
Key
Volcanoes Word Search
Key		 Word Search
Key		 Crossword
Key		  
Waste   Word Search
Key		   Crossword
Key
Weather Word Search
Key		 Word Search
Key		 Crossword
Key		 Crossword
Key