Rocks and Rock Cycle Crossword

This printable crossword puzzle on the topic of Rocks & Minerals has 15 clues. Answers range from 4 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Alteration of the composition or structure of a rock by heat, pressure, or other natural agency
The type of rock forms when lava cools and crystallizes
What type of igneous rock forms as magma cools underground
What type of igneous rock forms when volcanic material erupts, cools, and crystallizes on Earth's surface
What forms metamorphic rocks besides heat
What forms metamorphic rocks besides heat
Fragments that make up a rock
Molten rock that erupts on Earth's surface
The series of processes that change one type of rock into another type of rock
What rock is made of besides grains
The grain size and the way grains fit together in a rock
What forms where rocks are broken down into smaller pieces or dissolved in water as rocks erode
Molten or liquid rock underground
Sedimentary rocks that are made up of broken pieces of minerals and rock fragments
What type of rock forms when minerals crystalize directly from water