Relative Age of Rocks

Front

What is the difference between relative age and absolute age of rocks?

Back

Relative age compares the age of a rock to surrounding rocks, while absolute age determines the exact number of years since the rock was formed.

Front

How do sedimentary rocks typically form?

Back

Sedimentary rocks usually form in horizontal layers.

Front

What principle states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom?

Back

The law of superposition.

Tags

NGSS.MS-ESS1-4

Front

What is the youngest layer in a sequence of sedimentary rock layers labeled A to E?

Back

Layer A is the youngest.

Tags

NGSS.MS-ESS1-4

Front

What is the oldest layer in a sequence of sedimentary rock layers labeled A to E?

Back

Layer E is the oldest.

Tags

NGSS.MS-ESS1-4

Front

What is the significance of the law of superposition in geology?

Back

It helps geologists determine the relative ages of sedimentary rock layers.

Tags

NGSS.MS-ESS1-4

Front

What type of rock is formed from the accumulation of sediment?

Back

Sedimentary rock.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What does the term 'stratigraphy' refer to in geology?

Back

The study of rock layers (strata) and layering (stratification).

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Front

What is an outcrop in geology?

Back

An outcrop is a visible exposure of bedrock or ancient geological formations.

Tags

NGSS.MS-ESS1-4