Geologic time scale

___________ are remains of past life

• Fossils

• sandstone

• Igneous

• Metamorphic

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

____________ are scientists that study the composition of earth and rocks.

• Biologists

• anthropologists

• geologists

• chemists

Tags

NGSS.MS-ESS2-3

Rock that is made from sediments that have been pressed together are called

• igneous rocks

• sedimentary rocks

• metamorphic rocks

• granite

The geologic time scale tracks Earth's _______ year history

• 15

• 2021

• 4.6 billion

• 4.6 million

Tags

NGSS.MS-ESS1-4

An igneous intrusion is always __________ than the rock it cuts across.

• older

• younger

• harder

• the same age

What method do geologists use to find the absolute ages of rocks?

• cross cutting

• radiometric dating

• relative dating

• law of superposition

What could scientists look for to match rock layers in one area to rock layers in another area?

• similar index fossils

• similar rock types

• sandstone

• sediments

A radioactive element has experienced 3 half lives. How much of the original radioactive material remains?

• 50%

• 12.5%

• 25%

• 0%

Tags

NGSS.HS-PS1-8

According to the laws of superposition, which rock layers would be the youngest?

• The layers on top

• The layers on the bottom

• The layers in the middle

• They are all the same

Tags

NGSS.MS-ESS1-4

What is the process of moving sediments from one location to another?

• erosion

• weathering

• transpiration

• sedimentary rock