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Across
- 2. A word related to science
- 3. Force attracting objects to Earth
- 6. Device for controlled nuclear reactions
- 8. A word related to science
- 10. Naturally occurring inorganic solid
- 11. Diffusion of water through a membrane
- 12. One body blocking another in space
Down
- 1. A word related to science
- 4. A word related to science
- 5. Group of similar living organisms
- 7. Wearing away of land by water or wind
- 9. Fourth state of matter