Across
- 2. Smallest unit of matter
- 5. Solid outer layer of Earth
- 6. Larger or smaller representation of an item
- 7. Amount of matter in a given volume (m/v)
- 9. Controls what goes in and out of cell
- 12. Layers of air that surround Earth
- 15. Gel-like substance between nucleus and membrane
- 17. Negatively charged particles in an atom
- 19. Structure composed of two or more types of tissue
- 20. Separates particles based on density and size
- 21. Control center of cell
- 23. Group of cells of same kind that do a specific job
Down
- 1. Semi-solid layer directly below crust
- 3. Amount of space an amount of matter occupies
- 4. Basic unit of living things
- 7. Movement of particles from high concentration to low concentration
- 8. Support plant cells and makes them rigid
- 10. Combination of atoms to form a substance
- 11. Amount of matter, measured in grams
- 13. Anything that takes up space
- 14. Neutrally charged particles in atoms
- 16. positively charged particles in atoms
- 18. Group of organs that work together to do a certain job
- 22. Two center layers of Earth, inner is solid, outer is molten