Forming Fossil Fuels and Sedimentary Rocks

Oil and Natural gas is formed from the remains of ______________

• Peat
• Swamp organisms
• Marine organisms
• Rock

How are Sedimentary Rocks formed?

• Cooling and Hardening
• Heat and Pressure
• Compacting and Cementing
• Melting

Where can the oldest layer be found?

• The top layer
• The middle layer
• They are all the same age
• The bottom layer

In what kind of rock can fossils be found?

• Sedimentary Rocks
• Igneous Rocks
• Metamorphic Rocks
• Granite

How are fossils created?

• Traces of organisms get turned into stone.
• Dead organisms are quickly buried for millions of years.
• Animals get trapped.
• All of the above

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

• Sedimentary rock is made of layers.
• Sedimentary rock is cemented bits of rock.
• Sedimentary rock is often limestone.
• Sedimentary rock is common in Texas.

What are the 3 main fossil fuels?

• Coal, Oil, and Gasoline
• Coal, Oil, and Natural Gas
• Electricity, Gasoline, Petroleum
• Coal, Oil, Non-renewable Resources

What must be present for Fossil Fuels to form?

• Bones and Sediment
• Dead Organisms and Layers of Sediment
• Dead Organisms, Layers of Sediment, and Heat & Pressure over time
• Bones, Layers of Sediment, and Heat & Pressure over time

Which layer formed last?

• Rock Layer W
• Rock Layer X
• Rock Layer Y
• Rock Layer Z

Sedimentary rocks form when broken bits of other rock are deposited and then -

• buried and squeezed and cemented together
• melted by the heat of the Earth's core
• completely dissolved in the salt water of the ocean 
• used by humans as a natural resource