Which real-world scenarios below represent physical changes? check all that apply. running a car engine exploding fireworks mixing water and powdered drink mix combining oil and vinegar to make salad dressing taking aspirin for a headache diluting bleach with water digesting dinner spreading peanut butter on bread

Match the following items. match the items in the left column to the items in the right column. 1. general or nonspecific observation best fit curve 2. educated guess quantitative 3. when two variables change in the same direction, one remaining larger than the other by the same factor theory 4. "measured" observation control 5. standard, reference data, or experiment qualitative 6. a presently accepted explanation of how something happens law 7. a statement that explains what something does under the same conditions hypothesis 8. a curve drawn to average the data's deviations direct relationship