6 IS 2.4

What have sedimentary rocks been used for throughout history?

• Only for making jewelry

• For tools and building materials

• As a food source

• For making glass

What are the two types of sedimentary rocks mentioned as building materials?

• Granite and marble

• Sandstone and limestone

• Basalt and pumice

• Slate and shale

What is the main component in limestone that reacts with acid rain?

• Silica

• Calcite

• Quartz

• Feldspar

What is sediment?

• Large boulders

• Small, solid pieces of material from rocks or living things

• Liquid water

• Gaseous substances

What is the role of water and wind in forming sedimentary rocks?

• They melt the rocks

• They deposit sediment

• They create volcanic eruptions

• They form crystals

What is the final process in the formation of sedimentary rocks?

• Weathering

• Erosion

• Cementation

• Melting

Which process presses sediments together over time?

• Compaction

• Weathering

• Erosion

• Deposition

What is the process in which dissolved minerals crystallize and glue particles of sediment together?

• Erosion

• Cementation

• Weathering

• Compaction

Which process involves the effects of freezing and thawing on rocks?

• Cementation

• Weathering

• Compaction

• Deposition

Describe the rock fragment edges that form breccia.

• Sharp edges

• Rounded edges

• Flat layers

• Organic material