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Astronomy word search with solar system terms: heliocentrism, Kepler, perihelion, gravity.
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About:

This 18-word astronomy word search covers planetary motion and the history of solar system models for high school students. Hidden words include heliocentrism, Kepler, Copernicus, retrograde revolution, and perihelion, spanning both historical models (geocentrism, Ptolemy) and modern understanding (ellipsis, gravity, inertia). Use it as a vocabulary review during an astronomy unit, as a physics warm-up, or adapt it for other space-science topics.

Subject:
Science
Topic:
Astronomy
Grade Level:
9th – 10th Grades
Updated October 2025

Word List

  • PLANET
  • PLANETESIMAL
  • CONDENSATIONTHEORY
  • ARISTOTLE
  • PTOLEMY
  • GEOCENTRISM
  • EPICYCLE
  • COPERNICUS
  • RETROGRADEREVOLUTION
  • HELIOCENTRISM
  • KEPLER
  • PERIHELION
  • APHELION
  • ELLIPSIS
  • GRAVITY
  • INERTIA
  • ORBIT
  • BRAHE

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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