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Vocabulary
Chapter 2
Question | Answer |
---|---|
Heliocentric Model | Sun-centered representation, including a Sun and planets. |
Terrestrial Planets | Objects in space that resemble Earth. |
Big-Bang Theory | Hypothesis that describes how the universe began. |
Geocentric Model | Earth-centered representation, including the Sun and planets. |
Solar System | The Sun and the planets and other objects that orbit the Sun. Also, any star and the objects that revolve around it. |
Satellite | A natural or human built object that revolves around another object in space. |
Gas Giants | Large planets made up mostly of gaseous and liquid substances. |
Universe | The sum of everything that exists. |
Moon | Natural object that revolves around a planet. |