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Scientific Method
set of steps that scientists use to study phenomena
- 1.Observation
- 2.Hypothesis
- 3.Gather Data
- 4.Analyze
- 5.Conclusion
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Hypothesis
an explanation for an occurance
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Theory
an explanation regarded as true because it has overwhelming evidence from testing
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Density
amount of mass per volume
units: g/cm3
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Mass
amount of matter
units: grams
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Volume
amount of space occupied
units: liters
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Weight
amount of force exerted on Earth due to gravity
units: Newtons
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Nebula
interstellar cloud of gas and dust
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Terrestrial Planets
Mercury, Venus, Earth, Mars
- -small mass/volume
- -metallic core
- -rocky exterior
- -thin/no atmosphere
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Jovian Planets/Gas Giants
Jupiter, Saturn, Uranus, Neptune
- -very massive/volume
- -mostly gas
- -rocky or icy cores
- -many moons
- -thick atmosphere
- -all have rings
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Nebular Hypothesis
origin of the solar system
- 1. Nebular begins to rotate and colapse
- 2. Most mass is puller to center
- 3. Centrifugal force flattens into disk shape
- 4. Star is created by nuclear fusion
- 5. Remaining material in disk forms planets
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