Across
- 2. the measure of the amount of matter that an object contains
- 6. observation made without measurement
- 8. describes the characteristics and behavior of matter
- 9. the science that investigates and explains the structure and properties of matter.
Down
- 1. observation using measurement
- 3. combination of two or more substances in which the basic identity of each subject is not changed
- 4. model a thinking device that helps understand you understand and explain macroscopic observations
- 5. matter with the same fixed composition and properties
- 7. anything that takes up space and has mass