This printable word search puzzle on the topic of Astronomy & Space contains 20 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
greenhouse effect
outer planets
inner planets
solar system
ammonia
neptune
mercury
jupiter
uranus
saturn
water
orbit
earth
venus
space
rock
iron
mars
gas
sun