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Across
- 4. A word related to science
- 5. Preserved remains of ancient life
- 8. Large molecule essential for life
- 9. A word related to science
- 10. Naturally occurring inorganic solid
- 11. Pure substance on periodic table
Down
- 1. Device for controlled nuclear reactions
- 2. A word related to science
- 3. Slow-moving river of ice
- 6. Biological catalyst for reactions
- 7. Substance providing immunity