Across
- 1. particular preference or point of view that is personal, rather than scientific
- 4. scientific study of life
- 9. part of Earth in which life exists including land, water, and air or atmosphere
- 10. possible explanation for a set of observations or possible answer to a scientific question
- 12. relatively constant internal physical and chemical conditions that organisms maintain
- 14. the centre of an atom, which contains the protons and neutrons; in cells, structure that contains the cell's genetic material in the form of DNA
- 15. deoxyribonucleic acid
Down
- 2. signal to which an organism responds
- 3. organized way of gathering and analyzing evidence about the natural world
- 5. evidence; information gathered from observations
- 6. process of noticing and describing events or process in a careful, orderly way
- 7. well-tested explanation that unifies a broad range of observations and hypotheses, and enables scientists to make accurate predications about new situations
- 8. the combination of chemical reactions through which an organism builds up or breaks down materials
- 11. the basic unit of matter
- 13. a logical interpretation based on prior knowledge and experience