Exchange of Ideas

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Across
  1. 2. System of observation, experimentation, and evidence used by scientists.
  2. 3. Italian scientist and astronomer who supported the heliocentric theory.
  3. 5. Renaissance technique that made art appear three-dimensional.
  4. 7. Invention that allowed ideas to spread quickly across Europe.
  5. 8. Renaissance political thinker who wrote The Prince.
Down
  1. 1. Instrument that Galileo improved to study the stars and planets.
  2. 4. Polish astronomer who proposed that the Earth and other planets orbit the sun.
  3. 6. German astronomer who discovered that planets move in elliptical orbits.