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Across
- 3. Positively charged particle
- 6. Mixture producing intense heat
- 8. Naturally occurring inorganic solid
- 9. Pure substance on periodic table
- 10. One body blocking another in space
Down
- 1. Large molecule essential for life
- 2. Device for controlled nuclear reactions
- 4. Uncharged particle in nucleus
- 5. Biological catalyst for reactions
- 7. Solid with ordered atomic structure