Sedimentary Rocks

Geologists classify sedimentary rocks into three major groups: _________ rock, chemical rock, and organic rock.

• Clastic
• Limestone

_____________ is a sedimentary rock formed from the remains of swamp plants buried in water.

• Coal
• Limestone

______________ is the process by which sediments get pressed together.

• Cementation
• Weathering

________________ is a sedimentary rock formed from coral, shells, and skeletons that piled up on the ocean floor.

• Limestone
• Sandstone

Clastic rocks are grouped by the ______________ of the rock fragments of which they are made.

• Size
• Formation

Sand grains, pebbles, mud, shells, and leaves are all examples of __________________.

• Sediment
• Compaction

Which is the process that breaks up rock on Earth's surface?

• Weathering
• Erosion

Which forms when minerals dissolved in a water solution crystallize?

• Chemical Rock
• Organic Rock

Which is an example of an organic rock?

• Breccia
• Coal

Which rock can be a chemical or an organic rock?

• Limestone
• Conglomerate