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Across
- 6. One body blocking another in space
- 7. A word related to science
- 8. Center of an atom or cell
- 9. Wearing away of land by water or wind
- 10. A word related to science
Down
- 1. Slow-moving river of ice
- 2. Preserved remains of ancient life
- 3. Force attracting objects to Earth
- 4. A word related to science
- 5. Group of similar living organisms
- 7. A word related to science