
Heat and pressure are constantly at work below Earth's surface, but sometimes, their amazing effects can be seen aboveground. These powerful forces shape metamorphic rocks, one of the three kinds of rock that cover our planet's surface. Readers will learn how plate tectonics...

Heat and pressure are constantly at work below Earth's surface, but sometimes, their amazing effects can be seen aboveground. These powerful forces shape metamorphic rocks, one of the three kinds of rock that cover our planet's surface. Readers will learn how plate tectonics...