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Astronomy word search with terms like heliocentric, retrograde motion, and celestial sphere.
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Origins of Modern Astronomy Word Search

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About:

This 26-word astronomy word search reviews key concepts from the history of modern astronomy for high school students. Hidden words include heliocentric, Ptolemaic system, retrograde motion, and law of universal gravitation, spanning observational geometry and foundational physics. Use it as a vocabulary review after teaching the Copernican revolution, as homework, or as a sub-plan activity in an Earth science or physics course.

Subject:
Science
Topic:
Astronomy
Grade Level:
9th – 12th Grades
Updated February 2026

Word List

  • ALTITUDE
  • ANGULARDISTANCE
  • ANGULARSIZE
  • APHELION
  • CELESTIALSPHERE
  • CONSTELLATION
  • ECLIPTIC
  • GEOCENTRIC
  • HELIOCENTRIC
  • INERTIA
  • LAWOFUNIVERSALGRAVITATION
  • LUNARECLIPSE
  • MEANSOLARDAY
  • ORBIT
  • PERHELION
  • PHASESOFTHEMOON
  • PLANEOFTHEECLIPTIC
  • PTOLEMAICSYSTEM
  • RETROGRADEMOTION
  • ROTATION
  • SIDEREALDAY
  • SIDEREALMONTH
  • SOLARECLIPSE
  • SYNODICMONTH
  • ASTRONOMICALUNIT
  • DIRECTION

How to Use This Word Search

Print this word search for early finishers, vocabulary review, or classroom warm-ups. Click 'View Word Search' to change the grid size, swap words, or adjust difficulty before downloading.

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