Across
- 2. Basic unit of life
- 6. A scientist who studies rocks
- 8. Largest planet in our solar system
- 9. Lightest element on the periodic table
- 12. Opposite of base in chemistry
- 13. Symbol for Iron
- 14. Organism that makes its own food
- 15. Mendel's study subject
- 17. Basic taste sensation; not sweet, sour, or bitter
- 18. Phase of matter with a fixed volume but no fixed shape
- 21. The biological cell type which forms the essence of our pathways of thought and memory
- 22. Chemical element with the symbol 'O'
- 23. Organ that pumps blood
Down
- 1. He discovered penicillin
- 3. Green pigment in plants
- 4. H2O, more commonly
- 5. Bond between two amino acids
- 7. Center of an atom
- 10. Strongest muscle in the human body (by size)
- 11. Building blocks of proteins
- 12. Substance with pH lower than 7
- 16. Process of cells eating themselves
- 19. Famous physicist, first name
- 20. Study of heredity