Introduce and reinforce spelling for 30 basic Earth science vocabulary words with this fun word search worksheet. A brief definition is given for each of the words, assuring that puzzlers will be learning as well as having fun. Puzzles make great no prep activities for early finishers, first day, bell ringers, morning work, handouts, homework, lesson plan supplements, sponge activities, introductions to new topics, and sub files. The vocabulary words covered in this Earth science activity are: