1. Chapter 3 Lessons 1 and 2 Vocabulary Quiz

2. Measure of the force of gravity acting on an object. weight

3. A way to determine how accurate an experimental value is. percent error

4. Numerical average of a set of data. mean

5. The middle number in a set of data. median

6. Number that appears most often in a list of numbers. mode

7. The difference between the greatest value and the least value in a set of numbers. range

8. Curved upper surface of a liquid in a column of liquid. meniscus

9. System of units used by scientists to measure the properties of matter(another name for the metric system). SI (International System of Units)

10. How close a measurement is to the true or accepted value. accuracy

11. Amount of space an object or substance takes up. volume

12. Data that do not fit with the rest of the data set. anomalous data

13. Measurement system based on the number 10. metric system

14. Include all digits measured exactly, plus one estimated value. significant figures

15. Approximation of a number based on reasonable assumptions. estimate

16. Measure of how much mass is contained in a given volume. density

17. Measure of the amount of matter in an object. mass

18. How close a group of measurements are to each other. precision