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Across
- 1. One body blocking another in space
- 4. Uncharged particle in nucleus
- 6. A word related to science
- 8. Group of similar living organisms
- 9. Large molecule essential for life
- 10. Slow-moving river of ice
Down
- 2. A word related to science
- 3. Solid with ordered atomic structure
- 5. Positively charged particle
- 7. Device for controlled nuclear reactions