Term | Definition |
CHEMISTRY | study of matter and the changes that it undergoes |
SUBSTANCE | matter that has a definite and uniform composition |
MASS | a measurement that reflects the amount of matter |
WEIGHT | measure not only of the amount of matter but also of the effect of Earth's gravitational pull on that matter |
MODEL | visual, verbal, or mechanical explanation of experimental data |
SCIENTIFIC METHOD | systematic approach used in scientific study |
QUALITIVE DATA | information that descries color, odor, shape, or other physical characteristics |
QUANTITIVE DATA | information that describes temp, pressure, volume, the quantity of a chemical formed, or how much of a chemical is used up in a reaction |
HYPOTHESIS | tentative, testable statement or prediction about what has been observed |
EXPERIMENT | set of controlled observations that test the hypothesis |
INDEPENDENT VARIABLE | variable you plan to change |
DEPENDENT VARIABLE | value changes in response to a change of the independent variable |
CONTROL | standard for comparison |
CONCLUSION | judgment based on the information obtained |
THEORY | explanation of a natural phenomenon based on many observations and investigations over time |
SCIENTIFIC LAW | relationship in nature that's supported b many experiments |
PURE RESEARCH | something that a scientist does to gain knowledge for the sake of knowledge itself |
APPLIED RESEARCH | research undertaken to solve a specific problem |