This printable word search puzzle contains 15 hidden words in a 17x17 letter grid. Words go horizontally, vertically, and backwards. This word search is also available to download as a Microsoft Word document or a PDF.
HYDROGEN
RED SPOT
CALLISTO
GANYMEDE
JUPITER
HELIUM
EUROPA
MOONS
SOLAR
STORM
GREAT
RINGS
HALO
GAS
IO