Models of the Solar System Crossword Puzzle
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QUESTIONS LIST:
- earth : most ancient astronomers thought that all celestial objects revolved around _ .
- greek : ge is the _ word for “earth."
- four : galileo discovered _ moons around jupiter.
- motions : ptolemy’s model explained the _ observed in the sky fairly accurately.
- galileo galilei : people became convinced that the heliocentric model is correct after evaluating evidence collected by _ _ .
- geocentric : earth is at the center of the revolving planets and stars in a(n) _ model.
- kepler : the fact that each planet’s orbit is an ellipse was discovered by _ .
- venus : the heliocentric system gained support when galileo observed that _ goes through phases similar to those of earth’s moon.
- tychobrahe : in the late 1500s, ptolemy’s observations were supplanted by those of _ _ .
- helios : _ is the greek word for “sun."
- copernicus : the arrangement of the known planets and how they move around the sun was first worked out by nicolaus _ .
- ellipse : a(n) _ is an oval shape, such as the planets’ orbits.
- sun : in a heliocentric system, earth revolves around the _ .
