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10 Cards in this Set
- Front
- Back
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What is Oceanography?
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An interdisciplinary science that studies the ocean
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5 Components of Oceanography
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Geological
Physical Chemical Biological Management/Engineering |
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How many planets in the solar system?
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Eight
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When was the universe formed?
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15 billion years ago
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When was Earth formed?
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4.5 billion years ago
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_________ and _________ were how the planets were formed
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density stratification & accretion
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Sources of Water
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Sources of Water - outgassing (gasses released from volcanic vents, remains as water vapor to create clouds & eventually rained) & comets (primarily tiny ice comets colliding with earth providing water)
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Inner Planets
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Made of heavier elements
high melting & boiling temps & also called terrestrial planets |
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Outer Planets
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made of lighter elements
low melting & boilint temps & also called cold giants |
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Origin of Life - Essay
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1. Define Life: grow, reproduce & obtain energy
2. Earth was formed 4.5 billion years ago 3. Water is an ideal medium for life because it a)retains heat b)moderates temp c)solvent and d)transports nutrients 4. primordial soup theory is most accepted (created from mixture of water vapor, ammonia, methane & hydrogen) through possible sources of energy (ultraviolet light, hydrothermal heat from ocean floor or an electric discharge) 5. Other hypothesis a) primordial pizza b) panspermia |
