Understanding the Law of Superposition- Bozeman video

What does the law of superposition state about the placement of older rocks?

• Rocks of all ages are mixed together.

• Older rocks are found above younger rocks.

• Older rocks are found below younger rocks.

• The age of rocks does not depend on their placement.

Tags

NGSS.MS-ESS1-4

How are rocks typically laid down according to the law of superposition?

• In a random pattern

• In circular layers

• Vertically due to wind

• Horizontally due to gravity

Tags

NGSS.MS-ESS1-4

What everyday example was used to explain the law of superposition?

• A stack of books

• Items in a locker

• A layered cake

• A pile of leaves

What geological feature indicates that rock layers have been broken and lifted up?

• An intrusion

• A fault

• Erosion

• A lava flow

What happens to rock layers during tilting?

• They are tilted from their original horizontal position

• They remain horizontal

• They are eroded away

• They are pushed downwards

Tags

NGSS.MS-ESS2-2

What is an intrusion in geological terms?

• Molten rock moving upwards through other rock layers

• The process of rock layers being eroded

• A flow of lava on the surface

• A layer of sediment

How can you determine the sequence of geological events?

• By guessing based on the rock types

• By the size of the rock layers

• Through the law of superposition and horizontality

• By the color of the rocks

Tags

NGSS.MS-ESS1-4

What does an unconformity in a rock layer signify?

• The presence of fossils

• An area where rock has been eroded

• The start of a lava flow

• A new layer of sediment

Tags

NGSS.MS-ESS1-4

Which layer of rock is considered the youngest in a sequence?

• The layer with the most fossils

• The layer at the top

• The layer in the middle

• The layer at the bottom

Tags

NGSS.MS-ESS1-4

What real-world example is used to observe the law of superposition outside of a controlled environment?

• Ocean floors

• River valleys

• Road cuts

• Mountain ranges

Tags

NGSS.MS-ESS1-4