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Science and Technology Crossword 3

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       
     10     
        
11          

Across

1. Study of biological interactivity
5. Basic substances
8. Plain with frozen subsoil
10. Atmosphere
11. Neutral subatomic particle

Down

1. Subatomic particle
2. Marine life environment
3. Mineral-rich material
4. Have you finished the crossword _ _ _ ?
6. Acronym for National Oceanic and Atmospheric Administration
7. Dual-channel audio signal
9. Lymph or bile vessel

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