Across
- 1. Substance with a pH greater than 7
- 4. Substance formed from two or more elements
- 10. Six-legged invertebrate
- 11. Cold-blooded vertebrate with scales
- 14. Force that attracts objects toward Earth
- 15. Green pigment in plants
- 19. Community of interacting organisms
- 21. Process by which plants make food
- 24. Substance with a pH less than 7
- 27. Infectious agent that requires a host
- 29. Negatively charged subatomic particle
- 30. Carries genetic information
- 32. Atoms of the same element with different neutrons
- 34. Homogeneous mixture of solute and solvent
Down
- 2. Basic unit of matter
- 3. Pure substance consisting of one type of atom
- 5. Substance with a pH of 7
- 6. Warm-blooded vertebrate with hair or fur
- 7. Aquatic vertebrate with gills
- 8. Neutral subatomic particle
- 9. Combination of two or more substances
- 12. Positively charged subatomic particle
- 13. Two or more atoms bonded together
- 16. Cold-blooded vertebrate that lives both on land and in water
- 17. Substance formed from two or more elements
- 18. Warm-blooded vertebrate with feathers
- 20. Combination of two or more substances
- 22. Protein that speeds up chemical reactions
- 23. Kingdom of decomposers
- 25. Substance formed from two or more elements
- 26. Single-celled microorganisms
- 28. Structural unit of life
- 31. Nerve cell
- 33. Essential for respiration