| __ | 1. | Controlled experiment | | A. | proposed answer to a question |
| __ | 2. | Hypothesis | | B. | organized plan used to gain, organize and share information |
| __ | 3. | Manipulated variable | | C. | well-tested explanation of an observation or experiment |
| __ | 4. | Model | | D. | information obtained through the senses |
| __ | 5. | Observation | | E. | variable that CAUSES a change in the other variable |
| __ | 6. | Responsible variable | | F. | experiment in which only one variable is changed |
| __ | 7. | Scientific law | | G. | variable that RESPONDS to a change in the manipulated variab |
| __ | 8. | Scientific method | | H. | a statement that summarizes a pattern found in nature |
| __ | 9. | Scientific theory | | I. | representation of an object or an event |
| __ | 10. | Accuracy | | A. | how heavy or light something is |
| __ | 11. | Conversion factor | | B. | distance between two points |
| __ | 12. | Density | | C. | a number like 6.4 x 10 5 m or 9.116 x 10^ 3 kg |
| __ | 13. | Length | | D. | measuring how hot or cold something is |
| __ | 14. | Mass | | E. | how exact a measurement is |
| __ | 15. | Precision | | F. | amount of space taken up by an object |
| __ | 16. | Scientific notation | | G. | ratio of a materials mass to its volume |
| __ | 17. | Significant figures | | H. | a fraction that is used to convert units ( 1 foot/12 inch) |
| __ | 18. | Thermometer | | I. | closeness of a measurements to the true value |
| __ | 19. | Volume | | J. | all the digits in a measurements that are directly measured |