Across
- 3. Conversion of NO2/NO3 into atmospheric N2
- 6. Conversion from a liquid to a solid
- 11. The study of how organisms interact with their community and environment
- 12. A testable explanation of a situation or phenomena
- 13. Conversion of NH3 into NO2/NO3
- 15. The use of resources in a manner that can continue at the same rate into the foreseeable future
- 19. Climate region that stretches from latitudes -23.5S to 23.5N
- 20. An activity designed to test the validity of a prediction or hypothesis. Involves manipulating variables and collecting data
- 21. An explanation of a natural phenomenon supported by many observations and experiments over time
- 23. All air content of the Earth
- 25. All geological content of the Earth
- 29. A carbon-containing fuel formed over millions of years from the remains of living organisms
- 31. A variable that depends on the conditions set in the experiment
- 32. A description of a relationship under certain conditions in nature
- 33. Use of only observational skills to collect data when the independent variable cannot be manipulated by the experimenters, typically due to ethical concerns
- 35. Conversion of atmospheric N2 into NH3
- 36. Information
- 38. A variable the scientist manipulates
- 39. Resources that are naturally formed much more slowly than they are used
Down
- 1. Expression of the environmental effects of an individual population in terms of the total amount of land and water required
- 2. All living and nonliving things with which an organism interacts
- 4. Information expressed using numbers
- 5. Information expressed using words and letters
- 7. Conversion of CO2 into O2
- 8. Variables kept constant in an experiment
- 9. Conversion from a gas to a liquid
- 10. Resources that are naturally replenished over a short period of time
- 14. Climate region that stretches from latitudes -66.5S to -23.5S & 23.5N to 66.5N
- 16. All water content of the Earth
- 17. Specific statement about what we would expect to observe if a hypothesis is true
- 18. A process by which the procedures and results of an experiment are evaluated by other scientists who are in the same field.
- 22. Conversion from a liquid to a gas
- 24. Conversion of O2 into CO2
- 26. Use of models to generate predictive data when a phenomenon cannot be observed directly
- 27. The average weather conditions of an environment over the past 30 years
- 28. Evaporation of water from the leaves of plants
- 30. Resources found in nature that humans need to survive
- 34. All life on Earth and everything that supports it
- 37. Climate region that stretches from latitudes -90S to -66.5S & 66.5N to 90N