Basics of Science - Vocabulary
Across
- 4. a property of matter equal to the measure of an object's resistance to changes in either its speed or direction of its motion. The mass of an object is not dependent on gravity and therefore is different from but proportional to its weight. Unit: grams (g)
- 5. the measurement of the extent of something along its greatest dimension. Unit: meters (m)
- 6. data: data described in terms of some quality or categorization that may be informal or may use ill-defined characteristics such as warmth and flavor
- 7. variable (or manipulated variable): variable whose value is being altered to bring a change in some condition
- 8. method: a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
- 13. the amount of space occupied by a three-dimensional object or region of space Unit: Liters (L)
- 14. a branch of science that involves the study of the composition, structure and properties of matter. Often known as the central science, it is a creative discipline chiefly concerned with atomic and molecular structure and its change, for instance through chemical reactions.
- 16. figures: All of the numbers in a measurement that are know to be accurate, plus one that is uncertain.
- 17. variable: a sample in which a factor whose effect is being estimated is absent or is held constant: in order to provide a comparison.
- 18. analysis: a technique that involves the study of dimensions of physical quantities
Down
- 1. a measure of the average kinetic energy of the particles in a sample of matter, expressed in terms of units or degrees designated on a standard scale. Unit: Kelvin (K) or Celsius (®C)
- 2. a test under controlled conditions that is made to demonstrate a known truth, examine the validity of a hypothesis: or determine the efficacy of something previously untried.
- 3. : the act of noting and recording something with instruments.
- 4. system: a decimal system of units based on the meter as a unit length, the kilogram as a unit mass: and the second as a unit time.
- 9. a position reached after consideration of data obtained from an experiment
- 10. variable (or responding variable): the observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables
- 11. data: data described in terms of quantity and in which numerical values are used.
- 12. a tentative explanation for an observation or scientific problem that can be tested by further investigation.
- 15. notation: a method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.