| Definition/Concept | Key Term/Main Idea |
| refers to the closenes of measurements to the correct or accepted value of the quantity measured | |
| refers to the closeness of a set of measurements of the same quantity made in the same way | |
| when two quantities give a constant value when one is divided by another | |
| a number written in the form M x 10^n, n being a whole number | |
| a measurement consisting of all the digits known with certainty, plus one more digit, which is somewhat uncertain or estimated | |
| calculated by subtracting the accepted value from the experimental value, dividing the difference by the accepted value, then multiplying by 100 | |
| when the product of two quantities multiplied together is constant | |