Chapter 3 - The Tools of Science

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Across
  1. 3. A picture of information from a data table; shows the relationship between variables.
  2. 5. How close a group of measurements are to each other.
  3. 7. A representation of a complex object or process, used to help people understand a concept that they cannot observe directly.
  4. 10. Any area outside of the laboratory.
  5. 13. A system of units used by scientists to measure the properties of matter.
  6. 14. A group of related parts that work together to perform a function or produce a result.
  7. 15. Material, energy, or information that goes into a system.
  8. 19. A measure of the force of gravity acting on an object.
  9. 21. A sequence of actions in a system.
  10. 22. The number that appears most often in a list of numbers.
  11. 24. A line graph in which the data points do not fall along a straight line.
  12. 25. A sign used to alert you to possible sources of accidents in an investigation.
  13. 27. Output that changes a system or allows the system to adjust itself.
Down
  1. 1. A calculation used to determine how accurate, or close to the true value, an experimental value really is.
  2. 2. Data that do not fit with the rest of the data set.
  3. 4. All the digits in a measurement that have been measured exactly, plus one digit whose value has been estimated.
  4. 6. The amount of space that matter occupies.
  5. 8. The numerical average of a set of data.
  6. 9. An approximation of a number based on reasonable assumptions.
  7. 11. A line graph in which the data points yield a straight line.
  8. 12. A measure of how much matter is in an object.
  9. 16. A system of measurement based on the number 10.
  10. 17. The middle number in a set of data.
  11. 18. How close a measurement is to the true or accepted value.
  12. 20. Material, energy, result, or product that comes out of a system.
  13. 22. The curved upper surface of a liquid in a volume of liquid.
  14. 23. The measurement of how much mass of a substance is contained in a given volume.
  15. 26. The difference between the greatest value and the least value in a set of data.