Sedimentary Rocks

Geologists classify sedimentary rocks into three major groups: _____________ rock, organic rock & chemical rock.

• crystalline

• clastic

• conglomerate

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

• Coal

• Conglomerate

• Sandstone

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

• Limestone

• Shale

• Coal

__________________ is the process by which sediments get pressed together.

• Deposition

• Cementation

• Compaction

Small pieces of rocks, sand grains, pebbles, mud, shells, and leaves are all examples of ___________________________.

• Minerals

• Sediment

• Rocks

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

• Shape

• Size

• Hardness

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

• Erosion

• Deposition

• Weathering

Which type of sedimentary rock forms when minerals dissolved in a water solution crystallize?

• Clastic Rock

• Organic Rock

• Chemical Rock

Which is an example of an organic rock?

• Breccia

• Coal

• Rock Salt

Which rock can be a chemical or an organic rock?

• Limestone

• Sandstone

• Shale