Unit 1 Vocab - The Origin of the Ocean

1234567891011121314151617181920212223242526
Across
  1. 2. the initial formation of life on Earth
  2. 5. the great body of saline water that covers 70.78% of Earth's surface
  3. 8. the mass per unit volume of a substance, usually expressed in grams per cubic centimeter (g/cm^3)
  4. 10. premise that stars and planets accumulate from contracting, accreting clouds of galactic gas, dust, and debris
  5. 12. the explosive collapse of a massive star
  6. 13. a systematic way of asking questions about the natural world and testing the answers to those questions
  7. 16. a smaller, usually nonluminous body orbiting a star
  8. 17. an increase in the mass of a body by accumulation or clumping of smaller particles
  9. 19. massive, relatively low density planets that are composed of primarily hydrogen, helium, and other light materials in either their gas or liquid state
  10. 20. the volcanic venting of volatile substances
  11. 21. the sun together with the planets and other bodies that revolve around it
  12. 25. the formation of layers in a material, with each deeper layer being denser (weighing more per unit of volume) than the layer above
  13. 26. diffuse cloud of dust and gas
Down
  1. 1. the science of the ocean
  2. 3. the hypothetical event that started the expansion of the universe from a geometric point; the beginning of time
  3. 4. a large, rotating aggregation of stars, dust, gas, and other debris held together by gravity
  4. 6. one of the primary subdivisions of the world ocean, bounded by continents, the equator, and other imaginary lines
  5. 7. a speculation about the natural world that may be verified or disproved by observation and experimentation
  6. 9. a general explanation of a characteristic of nature consistently supported by observation or experimentation
  7. 11. a large construct explaining events in nature that have been observed to occur with unvarying uniformity under the same conditions
  8. 12. the orderly process by which theories explaining the operation of the natural world are verified or rejected
  9. 14. relatively small, rocky, and dense planets found in the inner solar system that have a well-defined surface
  10. 15. the name of our galaxy; sometimes applied to the field of stars in our home spiral arm, which is correctly called the Orion arm
  11. 18. the process (or result) of applying the scientific method to the ocean, its surroundings, and the life-forms within it
  12. 22. a massive sphere of incandescent gases powered by the conversion of hydrogen to helium and other heavier elements
  13. 23. the diffuse cloud of dust and gas from which the solar system originated
  14. 24. tests that simplify observation in nature or in the laboratory by manipulating or controlling the conditions under which observations are made