GLY 1001 Earth Science Name:____________

Chapter 1 Part K Key Terms 25 Points

Fill in the blanks with the word or words that best fit the definition:

1. ____________________ a very thin outermost layer of earth.

2. _____________________ beneath mantle, inner moss layer of the earth divided in to outer core and

inner core.

3. _____________________ water portion of our planet; one of the traditional sub divisions of earth’s physical

environment.

4. _____________________ the solid earth, the largest of earths four major spheres

5. _____________________ gaseous portion of planet the environments envelope of air one of the traditional sub

divisions of earths’ physical science.

6. _____________________ rigid outer layer of earth including crust and upper mantle.

7. _____________________ totality of life on earth the parts of solid earth hydrosphere, atmosphere, in which

living organisms can be found

8. _____________________ scientific study including observation, and interpretation of celestial bodies

and phenomena

9. _____________________ the science that examines earth, its forms and composition and changes it has

undergone and is undergoing

10. _____________________ scientific study of the weather and climate.

11. _____________________ the scientific study of the oceans and oceanic phenomena.

12. _____________________ name of all science collectively seeking to understand earth: geology,

oceanography, meteorology and astrology

13. _____________________ a well tested and widely accepted view that explains certain observable facts.

14. _____________________ a tentative explanation that is tested to determine of it is valid.

15. _____________________ a term often used synonymously with hypothesis but is less precise because it

sometimes is used to describe a theory as well.

16. _____________________ any size group of interacting parts that form a complex whole.

17. _____________________ everything that surrounds and influences an organism

18. _____________________ division of the earth history into books of time, eons, eras, periods, and epochs.

19. _____________________ solid innermost layer of the earth about 1300 km.’s (800 miles in radius)

20. _____________________ the 2900 km thick layer of earth located below the crust

21. _____________________ extends from the core mantle to a depth of 660 km

22. _____________________ a layer beneath the mantle about 2200 kilometers or 1364 miles thick that has

the properties of a liquid.

23. _____________________ An elongated depression in the sea floor produced by the blending of the

ocean crust during subduction.

24. _____________________ steep gradient that leads to the deep ocean floor, and marks seaward

edge of shelf.

25. _____________________ portion of seafloor that lies between the continental margin and the oceanic ridge

system. This ridge system compromises almost 30 % of earth surface.

Alternate Answers: Write below up to three words and their definitions not included in the 25 questions above.

This will count up to three bonus points: