(R) 5.7A Science STAAR (Sedimentary Rock/Fossil Fuels)

Front

The diagram above shows the sequence of the process that turn solid rock into sandstone. Which two processes best complete this diagram?

Back

Compaction and cementation

Front

All of these are related to the formation of oil or natural gas EXCEPT: decomposed animals, decayed plants, sedimentary rocks, active volcanoes

Back

active volcanoes

Front

The model shows layers of sediment on the floor of an ocean. Which of the following best explains how these layers can become rock over many years?

Back

The weight of the water compacts the sediment into rock.

Front

What kinds of particles needed to be present in the marine mud in order for fossil fuels to form?

Back

Mostly decaying organisms

Front

Which characteristic of sedimentary rock does this model best show?
Some students make a model to show one of the first steps in the formation of sedimentary rock. The students pour 2 centimeters of light-colored sand into a clear plastic box. Then they add 1 centimeter of gravel. Finally they pour 2 centimeters of dark-colored sand on top of the gravel.

Back

Sedimentary rock is made of layers.

Front

Erosion is one of the processes involved in the formation of sedimentary rocks. Which of these best describes the process of erosion? Options: Rocks are broken into smaller pieces that remain in the same location., Pressure compacts layers of sediment and turns them into rock., Pieces of rock or soil are carried from one place to another., Sediment grains fall to the bottom of a lake to form sedimentary layers.

Back

Pieces of rock or soil are carried from one place to another.

Front

This photograph shows plants growing on the surface of a pond. How do plants like these form fossil fuels?

Back

The dead plants sink to the bottom of the pond and get buried by sediment for millions of years.

Front

Which list contains only processes that must occur in order for fossil fuels to form? Options: Formation of faults, burial, glacier formation; Organism growth, burial, volcanic eruptions; Organism growth, burial, compaction; Erosion, burial, earthquakes

Back

Organism growth, burial, compaction

Front

Which diagram models the process of compaction leading to the formation of sedimentary rock? (5.7A)

Back

Front

The diagram shows layers deposited under a body of water. This layering continued for millions of years. What most likely happened to the dead plants and animals?

Back

They became fossil fuels.