Across
- 4. – Substance made of two or more elements chemically combined.
- 5. – Basic unit of life.
- 7. – A trait that helps an organism survive.
- 11. – Chart of all known elements.
- 15. – Matter with definite volume but no definite shape.
- 16. – Change in form but not in substance.
- 19. – Mass per unit of volume.
- 23. – Movement of particles from high to low concentration.
- 24. – Change that produces a new substance.
- 26. – Change in species over time.
- 28. – Structure made of DNA and proteins found in the nucleus.
Down
- 1. – All living and nonliving things in an area.
- 2. – A change in DNA.
- 3. – Study of organisms and their environment.
- 4. – Organelle in plants that performs photosynthesis.
- 6. – Positively charged particle in the nucleus.
- 8. – Gel-like material inside the cell.
- 9. – A section of DNA that codes for a trait.
- 10. – Control center of a cell.
- 12. – Substance made of one kind of atom.
- 13. – Combination of substances not chemically bonded.
- 14. – Molecule that carries genetic information.
- 17. – Matter with definite shape and volume.
- 18. – Organelle that makes energy for the cell.
- 20. – Space an object takes up.
- 21. – Two or more atoms bonded together.
- 22. – Matter with no definite shape or volume.
- 25. – Smallest unit of an element.
- 27. – Movement of water across a membrane.
- 29. – Amount of matter in an object.