Describing the Physical Universe

By Audrey Hildebrandt (CHS Class of 2012)

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ACROSS
4. An explanation that links the variables in a system through cause and effect relationships.
6. A group of objects, effects, and variables that are related.
10. Time ____. A quantity (not a moment) of time.
12. Observations that are large enough to see or directly measure.
15. The distance traveled divided by the time it takes.
16. ____ System. The measure of distance by inches, feet, yards and miles.
17. A situation you carefully set up to see what happens under controlled conditions.
19. ____ Variable. The variable that is the cause of change in the system.
20. The units in which distance is measured ex.) inches, miles, centimeters, kilometers, and meters.
 DOWN
1. The detailed thinking you do to interpret and understand what you observe.
2. A factor that affects the behavior of the system.
3. ____ Variable. A variable that is kept the same.
4. ____ System. The measure of distance by millimeters, centimeters, meters and kilometers.
5. Natural ____. A rule that tells you how (or why) something happens the particular way it does.
7. The basic unit of time in both the English and metric systems.
8. An educated guess that predicts the relationship between the independent and dependent variables in an experiment.
9. ____ Method. The process used to conduct and experiment.
11. ____ Variable. The variable that is changed.
12. The measure of the amount of matter that makes up an object.
13. ____ Speed. The same distance is traveled every second.
14. The amount of space between two points.
18. A measure of a system's ability to change or create change in other systems.