Law of Superposition

Front

What is the Law of Superposition?

Back

The Law of Superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

Tags

NGSS.MS-ESS1-4

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

Tags

NGSS.MS-LS4-1

Front

Which fossil is considered the oldest among Trilobite, Ammonite, Crinoid, and Gastropod?

Back

Trilobite is considered the oldest fossil among these options.

Tags

NGSS.MS-LS4-1

Front

How do geologists determine the relative ages of rock layers?

Back

Geologists use the Law of Superposition, fossil correlation, and other principles to determine the relative ages of rock layers.

Tags

NGSS.MS-ESS1-4

Front

What is the significance of the Kaibab formation?

Back

The Kaibab formation is significant as it is one of the youngest rock layers in the Grand Canyon.

Tags

NGSS.MS-ESS1-4

Front

What does it mean for a rock layer to be 'newer'?

Back

A newer rock layer is one that was formed more recently than the layers beneath it.

Tags

NGSS.MS-ESS1-4

Front

What is the order of rock layers from oldest to youngest: Limestone, Basalt, Fault, Siltstone?

Back

The correct order from oldest to youngest is: Limestone, Siltstone, Fault, Basalt.

Tags

NGSS.MS-ESS1-4

Front

What is a fault in geology?

Back

A fault is a fracture or zone of fractures between two blocks of rock, which can cause earthquakes.

Front

What is the youngest layer in a geological diagram labeled A, B, C, D?

Back

Layer A is the youngest layer in the diagram.

Tags

NGSS.MS-ESS1-4

Front

What is sedimentary rock?

Back

Sedimentary rock is formed by the accumulation and compaction of mineral and organic particles.

Tags

NGSS.MS-ESS2-1