This printable word search puzzle contains 25 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.
reflection
greenhouse
revolution
elliptical
atmosphere
hemisphere
celestial
astronomy
discovery
asteroids
volcanoes
universe
hydrogen
luminous
sunrise
methane
season
gasses
sunset
energy
helium
light
orbit
space
axis