Across
- 2. the field that applies science to the production of biological products or processes
- 3. research that is directed toward a practical goal or application
- 5. a proposed explanation for an observation
- 6. anything that has mass and occupies space
- 9. the variable that is changed during an experiment
- 13. a concise statement that summarizes the results of many observations and experiments
- 14. the means by which a society provides its members with those things needed and desired
- 15. describes the world of objects that are large enough to see with the unaided eye
- 18. the area of chemistry that deals with the mechanism, the rate, and the energy transfer that occurs when matter undergoes a change
- 19. the study of compounds containing carbon
- 20. a material found in air, water, or soil that is harmful to humans and other organisms
- 21. the study of the composition of matter and the changes that matter undergoes
- 22. a well-tested explanation for a broad set of observations
Down
- 1. the variable that is observed during an experiment
- 4. the pursuit of chemical knowledge for its own sake
- 7. the area of chemistry that focuses on the processes that take place in organisms
- 8. describes the world of objects that can be seen only under magnification
- 10. the area of chemistry that focuses on the composition of matter
- 11. the study of substances that, in general, do not contain carbon
- 12. a repeatable procedure that is used to test a hypothesis
- 16. information obtained through the senses; often involves a measurement
- 17. a logical, systematic approach to the solution of a scientific problem; steps include making observations, testing hypotheses, and developing theories