science

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Across
  1. 4. A celestial body that orbits a star.
  2. 6. - The "messenger" molecule carrying genetic information.
  3. 7. The closest star to Earth.
  4. 9. that pulls objects toward Earth
  5. 10. - The "powerhouse" of the cell.
  6. 12. Center of an atom
  7. 13. The basic unit of life.
  8. 16. -The 3-letter, liquid metal at room temperature.
  9. 18. The largest internal organ in the human body.
  10. 19. - Green pigment in plants
Down
  1. 1. -Process plants use to make food.
  2. 2. -A type of rock formed by cooled magma.
  3. 3. -The state of matter with no fixed shape or volume
  4. 4. - A group of wolves.
  5. 5. Scientist who studies rocks.
  6. 8. most abundant gas in the Earth's atmosphere.
  7. 11. The fundamental particle that carries a negative charge.
  8. 14. study of fungi.
  9. 15. -The, often blue, planet we live on.
  10. 17. A substance with a pH less than 7.