Across
- 3. a measure not only of the amount of matter but also of the effect of Earth’s gravitational pull on that matter
- 5. anything that has mass and takes up space
- 6. matter that has a definite composition
- 8. research that seeks to gain knowledge for the sake of knowledge itself
- 9. a tentative, testable statement or prediction about what has been observed
- 14. the variable that is changed during an experiment
- 16. an explanation that has been supported by many experiments
- 17. include all known digits plus one estimated digit
- 19. how close a measured value is to an accepted value
- 20. research undertaken to solve a specific problem
Down
- 1. a method of problem-solving that focuses on the units used to describe matter
- 2. a unit that is defined by a combination of base units
- 4. error ratio of an error to an accepted value
- 7. how close a series of measurements are to one another
- 10. the use of evidence to construct testable explanations and predictions, as well as the knowledge generated through this process
- 11. the branch of science that studies matter and the changes it undergoes
- 12. describes a relationship in nature that is supported by many experiments
- 13. the variable whose value depends on the independent variable
- 15. the difference between an experimental value and an accepted value
- 18. a measurement that reflects the amount of matter an object contains