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Science and Technology Crossword 7

Click on a number in the crossword, write your answer, and then click "Enter". (Click "Hint" if you need help to get the next letter in each word.)
1    2    3     4   
        
5          
        
     6     
7     8       
        
   9       

Across

1. We must stop _ _ _ _ _ _ warming.
5. Substance in food
6. Grass ear bristle
7. Small six-legged anthropod
9. Object in space with a tail

Down

1. Study of heredity
2. Study of sight and light
3. Dry, of climate
4. Plant scientist
6. Basic unit of matter
8. Acronym of "Error Recovery Control"