This printable word search puzzle contains 23 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.
conviction currents
chemical reactions
microorganisms
photosynthesis
stromatolites
thermosphere
stratosphere
temperature
radio waves
ozone layer
troposphere
atmosphere
satellites
mesosphere
decreases
exosphere
warm air
cool air
increase
ammonia
methane
weather
oxygen