Unit 2 Lessons 3 and 4 ~ The Rock Cycle and Three Classes of Rock

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Fossils and the imprint of an insect may appear in these rocks.

nearly everything solid in the Earth's crust is made of these rocks.

lakes and ocean bottoms are where these rocks have their beginnings.

This name means by formed by fire and comes from the Latin root ignis.

This name means changed in form.

These rocks form when volcanoes erupt.

Metamorphic rocks come from these rocks.

They come in many shapes and sizes.