Across
- 6. Use and application of living things and biological processes
- 7. The factor that can be changed or manipulated in an experiment
- 11. Scientific facts combined with well tested hypotheses
- 13. All chemical processes that break down materials within an organism
- 14. An average
- 17. Change in a species overtime; process of biological change by which descendants come to differ from their ancestors
- 18. basic unit of life
- 20. transmits electrons through thin slices of specimen
- 23. Inherited traits that are selected over time because it allows organisms to better survive in their environment
- 24. Used to see living or preserved specimens and provide clear images
- 25. Any variable that remains the same for both the experimental and control groups
- 26. Using knowledge to identify and explain observations in advance
Down
- 1. Based on measurable characteristics
- 2. scans surfaces with a beam of electrons
- 3. A testable explanation for observations and questions about the natural world
- 4. Scientific study of all forms of life
- 5. The factor that responds to changes in other variables in an experiment
- 8. Development of ideas based on observations
- 9. Based on observable characteristics using the five senses
- 10. The subject that is used for a standard of comparison
- 12. Regulations and maintenance of constant internal conditions in an organism
- 15. Using one of the five senses to gather information
- 16. Tool that provides an enlarged image of an object
- 19. When a hypothesis has been tested repeatedly over and over and it is supported by evidence
- 21. The most variable conditions or levels for growth, reproduction, or success
- 22. Variety of life within an area