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Origins of the Ocean Vocab

Across
The diffuse cloud of dust and gas from which the solar system originated
The volcanic venting of volatile substances
An increase in the mass of a body by accumulation or clumping of smaller particles
A large construct explaining events in nature that have been observed to occur with unvarying uniformity under the same conditions
The science of the ocean
The process (or result) of applying the scientific method to the ocean, its surroundings, and the life-forms within it; also called oceanography or oceanology
The formation of layers in a material, with each deeper layer being denser (weighing more per unit of volume) than the layer above
A general explanation of a characteristic of nature consistently supported by observation or experiment
Massive, relatively low density planets that are composed primarily of hydrogen, helium and other light materials in either their gas or liquid state. They are often found in the outer solar system and do not have a well-defined solid surface
Relatively small, rocky, and dense planets found in the inner solar system that have a well-defined solid surface.
The great body of saline water that covers 70% of the earths surface
Tests that simplify observation in nature or in the laboratory by manipulating or controlling the conditions under which observations are made
The initial formation of life on Earth
Down
Premise that stars and planets accumulate from contracting, accreting clouds of galactic gas, dust, and debris
A large, rotating aggregation of stars, dust, gas, and other debris held together by gravity. There are perhaps 50 billion galaxies in the universe and 50 billion stars in each galaxy
The hypothetical event that started the expansion of the universe from a geometric point; the beginning of time
The sun together with the planets and other bodies that revolve around it
Diffuse cloud of dust and gas (plural, nebulae)
The orderly process by which theories explaining the operation of the natural world are verified or rejected
The explosive collapse of a massive star
A speculation of the natural world that may be verified or disproved by observation and experiment
A massive sphere of incandescent gases powered by the conversion of hydrogen to helium and other heavier elements
A systematic way of asking questions about the natural world and testing the answers to those questions
A smaller, usually nonluminous body orbiting a star.