Across
- 3. study of matter its properties and reactions
- 4. study of heredity and variation
- 5. smallest unit of a chemical element
- 10. systematic explanation for a set of phenomena
- 12. group of living organisms that can interbreed
- 13. place for scientific experiments and research
- 14. substances that consist of only one type of atom
- 17. group of atoms bonded together
- 18. systematic study of the natural world
Down
- 1. community of living organisms and their environment
- 2. creator of the periodic table
- 6. international competition for scientific knowledge
- 7. process by which plants make food
- 8. father of evolutionary theory
- 9. study of living organisms and their interactions
- 11. mixture of two or more elements
- 15. surroundings that affect living organisms
- 16. scientific test or procedure
- 19. basic unit of life