Across
- 3. the combination of chemical reactions through which an organism builds up or breaks down materials
- 5. process of noticing and describing events or processes in a careful, orderly way
- 7. experiment in which only one variable is changed
- 10. scientific study of life
- 11. signal to which an organism responds
- 13. factor in a controlled experiment that is deliberately changed
Down
- 1. relatively constant internal physical and chemical conditions that organisms maintain
- 2. variable that is observed and that changes in response to the independent variable
- 4. possible explanation for a set of observations or possible answers to a scientific question
- 6. evidence; information gathered from observation
- 8. well-tested explanation that unifies a broad range of observations and hypotheses, enabling scientist to make accurate predictions about new situations
- 9. group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable
- 10. particular preference or point of view that is personal rather than scientific
- 12. a logical interpretation based on prior knowledge and experience
- 14. change over time