Across
- 2. a social movement dedicated to protecting the natural world-and by extension, people-from the harmful changes produced by human activities
- 3. a resource that is formed much more slowly than it is used
- 4. the study of how the natural world works, how the environment affects humans, and how humans affect the environment
- 7. a well-tested explanation of observations and experimental findings
- 8. the variable that is manipulated, or changed, in an experiment
- 11. information collected using scientific methods
- 15. a resource that is replenished, or renewed over short periods of time
- 17. the environmental impact of an individual or population in terms of the total amount of land and water required (1) to provide the raw materials the individual or population consumes and (2) to dispose of or recycle the waste the individual or population produces
- 18. a carbon-containing fuel formed over millions of years from the remains of living things
- 19. able to meet the current demand for a resource without depleting the future supply
Down
- 1. the variable that changes in response to the conditions set in an experiment
- 5. the branch of philosophy that involves the study of good and bad, and right and wrong
- 6. the application of ethical standards to relationships between humans and their environment
- 9. the formal process of submitting research for examination by the scientific community
- 10. any of the natural resource materials and energy sources provided by nature that humans need to survive
- 12. a testable idea that attempts to explain a phenomenon or answer a scientific question
- 13. a study in which only one factor is manipulated, or changed
- 14. a statement of what a scientist expects to observe if a hypothesis is true
- 16. all living and nonliving things with which an organism interacts