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Across
- 2. One body blocking another in space
- 4. Uncharged particle in nucleus
- 5. A word related to science
- 7. Naturally occurring inorganic solid
- 9. Large molecule essential for life
- 10. Mixture producing intense heat
- 11. Preserved remains of ancient life
Down
- 1. A word related to science
- 3. A word related to science
- 6. Wearing away of land by water or wind
- 8. Diffusion of water through a membrane