Crossword 2

1. Location where the first motion of an earthquake occurs.
3. Another name for the experimental group.
6. The _________ group contains the independent variable.
11. North, south, east, and west are called _________.
14. Location of the largest earthquake in U.S. history.
16. The name of the eon that we presently live.
18. The major evidence that supports plate tectonics.
19. The name of the theory responsible for the initial formation of the Universe.
20. Principle that shows gaps of time in the rock record.
21. Reference point for longitude.

2. Name of the first condensed form of matter.
4. Person who presented the theory of Natural Selection.
5. Location of the largest earthquake of all time.
7. The ancient landform where all of the continents were connected.
8. Refers to an inherited trait that increases an organism’s chance of survival.
9. Light-colored igneous rock generally has a ____ composition.
10. P waves and S waves are two types of _____ waves.
12. Geologic principle that states that older events are found on the bottom.
13. Another name for a test in an experiment.
15. Dating method that defines the order that events occur.
17. Name of the surface location directly above where an earthquake occurs.