Chapter 1: Measurement

3. The measurement of space in any direction.
4. A fixed and reproducible value for the purpose of taking accurate measurements.
10. the study of the atmosphere from the surface of the Earth to outer space.
11. A metric unit of volume or capacity; 1 L = 1000 cm3.
12. A group of standard units and their combinations. The two major systems of units in use today are the metric system and the British system.
13. The decimal (base-10) system of units employed predominantly throughout the world.
16. A quantitative observation, one involving numbers.
17. studies the universe as it relates to matter, energy, space, and time.
20. made up of matter & energy (the most fundamental).
23. An investigative process that holds that no concept or model of nature is valid unless the predictions it generates agree with experimental results. That is, all hypotheses should be based on as much relevant data as possible and then should be tested and verified.
24. The standard unit of length in the metric system. It is equal to 39.37 inches, or 3.28 feet.

1. The system of units still often employed in the United States, wherein the foot, pound, and second are the standards of length, weight, and time, respectively. The system is sometimes referred to as the fps (foot-pound-second) system.
2. A measure of the compactness of the matter or mass of a substanceusing a ratio of mass to volume; ρ = m/V.
5. Multiples or combinations of units.
6. The testing of a hypothesis under controlled conditions to see whether the test results confirm the hypothetical assumptions, can be duplicated, and are consistent.
7. An equivalence statement expressed as a ratio.
8. the study of nonliving matter including physics, chemistry, astronomy, meteorology, and geology.
9. An organized body of knowledge about the natural universe and the processes by which that knowledge is acquired and tested.
10. A quantity of matter and a measure of the amount of inertia that an object possesses.
14. the science of the Earth and its composition, structure, processes, and history.
15. A concise statement in words or a mathematical equation that describes a fundamental relationship of nature.
18. A well-tested explanation of observed natural phenomena.
19. A possible explanation for observations; tentative answer or an educated guess.
21. deals with the composition, structure, and reactions of matter.
22. The continuous forward flow of events.