NGSS Sequencing Rock Layers

The statement that the oldest layer will be at the bottom in an undisturbed sequence of rock layers is called the Principle of ....

• Inclusions
• Unconformities
• Cross-Cutting Relationships
• Superposition

Which of the following correctly lists the layers in order from oldest to youngest?

• A, B, C, D, E
• E, B, C, D, A
• E, D, C, B, A
• C, B, A, D, E

What is the oldest layer in the outcrop?

• B
• C
• D
• E

What is the youngest layer in the outcrop?

• A
• B
• C
• D

The rock formation labeled "P" is a(n)...

• fault
• intrusion
• inclusion
• unconformity

Letter "F" is a....

• inclusion
• intrusion
• fault
• unconformity 

Letter "A" is an....

• inclusion
• intrusion
• fault
• unconformity 

What are the relative ages of the features in order from oldest to youngest?

• Limestone, Basalt, Fault, Siltstone
• Siltstone, Fault, Basalt, Limestone
• Limestone, Fault, Basalt, Siltstone
• Limestone, Siltstone, Fault, Basalt

How does sedimentary rock usually form?

• Vertically
• Diagonally
• Folding
• Horizontally

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C