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Across
- 3. Wearing away of land by water or wind
- 6. A word related to science
- 9. Fourth state of matter
- 10. Large molecule essential for life
- 11. Solid with ordered atomic structure
Down
- 1. Smallest discrete unit of energy
- 2. Positively charged particle
- 4. Group of similar living organisms
- 5. Diffusion of water through a membrane
- 7. Biological catalyst for reactions
- 8. Pure substance on periodic table