Here is a simple puzzle-webquest assignment that will go great with any rock or geology unit. It works great in-class, as extra credit, or for homework.
Two puzzle are included (wordsearch and criss-cross grid). Students can do one or both. Each puzzle has the same 30 rock types. After students have solved the puzzle they can use either their textbooks or Internet to sort the 30 rock types into the correct rock category (igneous, metamorphic, or sedimentary).
ANSWER KEYS FOR BOTH PUZZLES AND ROCK SORT ARE PROVIDED.
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