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Across
- 4. Force attracting objects to Earth
- 6. Solid with ordered atomic structure
- 7. Positively charged particle
- 9. Preserved remains of ancient life
- 10. Group of similar living organisms
Down
- 1. A word related to science
- 2. A word related to science
- 3. A word related to science
- 5. Biological catalyst for reactions
- 8. One body blocking another in space