Sedimentary Rocks: Video Quiz

The video tutorial introduces sedimentary rocks, explaining their formation through layer compression and the presence of rock beds. It highlights the rock layers at the Grand Canyon and discusses large, smooth rock fragments. The tutorial also covers hoodoos, rocks formed by chemical reactions, and the fossilization process where minerals replace once-living things. Finally, it addresses rocks made from organic materials.

What is the primary process that forms sedimentary rocks?

• Evaporation

• Compaction and cementation

• Melting and cooling

• Metamorphism

Which rock layers are found at the top of the Grand Canyon?

• Sedimentary layers

• Igneous layers

• Volcanic layers

• Metamorphic layers

What are hoodoos primarily made of?

• Sandstone

• Limestone

• Granite

• Basalt

Rocks formed through chemical reactions are known as?

• Organic rocks

• Chemical sedimentary rocks

• Igneous rocks

• Metamorphic rocks

What process involves the replacement of once-living material with minerals?

• Erosion

• Fossilization

• Weathering

• Crystallization