Across
- 4. the number all known digits reported in measurement plus one estimated digit
- 6. properties used to identify unknown substances
- 8. a visual display of data
- 12. always significant
- 13. is evaluated by examining the accuracy and precision of measurements
- 17. how close measurements are to each other
- 18. to determine if data is precise
- 21. used to determine the density of an irregular shaped solid
- 22. used when expressing percentages
- 24. never significant
- 25. one hundred base units
Down
- 1. used to distinguish between solid and liquid
- 2. one thousand base units
- 3. used when there is continuous numerical data
- 5. the variable changed or controlled
- 7. other variables that cannot change
- 9. ten base units
- 10. used when there are distinct categories
- 11. the study of matter and the changes it undergoes
- 14. an educated guess or prediction about the outcome of an experiment
- 15. a statement of what’s being tested
- 16. measurements should always include
- 19. the value is independent of the amount present
- 20. to determine if data is accurate
- 23. used to calculate percent error