Understanding Sedimentary Rocks

What is the primary way sedimentary rocks form?

• High pressure and heat transformations

• Compaction and cementation of sediments

• Evaporation of mineral-rich water

• Cooling and solidification of magma

What does 'compaction' refer to in the context of sedimentary rocks?

• Squeezing together

• Melting down

• Freezing over

• Heating up

Tags

NGSS.MS-ESS2-1

Which of the following is NOT a size category of sediments?

• Metamorphic

• Gravel

• Pebbles

• Clay

What is the second largest size of sediment?

• Silt

• Sand

• Clay

• Pebbles

What type of sedimentary rock is formed from compacted sand grains?

• Shale

• Breccia

• Conglomerate

• Sandstone

Which sedimentary rock is characterized by many sizes of sediments?

• Breccia

• Conglomerate

• Sandstone

• Shale

What is the term used for sedimentary rocks formed from organic materials?

• Clastic rocks

• Organic rocks

• Metamorphic rocks

• Crystalline rocks

Which process does NOT contribute to the formation of sedimentary rocks?

• Sublimation

• Erosion

• Weathering

• Compaction

Tags

NGSS.MS-ESS2-4

What is the second smallest sediment size category?

• Pebbles

• Silt

• Sand

• Clay

Which rock is formed by the evaporation of seawater?

• Rock salt

• Coal

• Sandstone

• Dolostone

Tags

NGSS.MS-ESS2-1