The Geologic Time Scale

The Geologic Time Scale

by Katie Helf

Multiple Choice

The Law of Superposition states

• Younger rocks layers are on top of older rock layers

• Fossils are found in sedimentary rocks

• Older rock layers are on top of younger rock layers

• Absolute age dating

Multiple Choice

a model scientists use to describe the timing of events and the relationships between those events in earth’s history.

• geologic time scale

• era

• period

• epoch

Multiple Choice

The Geologic Time Scale is a record of what?

• old geologists
• sweet geology music
• the known history of rocks and fossils
• a list of every living thing ever

Multiple Choice

Which fossil is the youngest

• 1

• 2

• 3

• 4

Multiple Choice

A scientist who studies fossil remains in order to study primitive life forms.

• Ecologist

• Geologist

• Zoologist

• Palentologist

Multiple Choice

Fossils provide evidence of __________.

• how life and the environment has remained stable over time

• how the climate and weather has remained stable over time

• how life and the environmental conditions have changed over time

Multiple Choice

Which is the youngest rock layer?

• Siltstone

• Conglomerate

• Mudstone

• Limestone

Multiple Choice

Which of the fossils is the oldest?

• Dinosaur

• Bird

• Shell

• Ammonite

Multiple Choice

Earth is thought to be formed ______ years ago?

• 200 thousand

• 3 million

• 4.6 billion

• who knows

Multiple Choice

Scientists chose where units of geologic time began and ended based on major changes in life forms at certain times.

• true
• false

Multiple Choice

The disappearance of a species.

• Evolution
• Extinction
• Migration
• Mutation

Multiple Choice

This provides information about the history of life on earth and how organisms lived and evolved over time.

• fossil data
• fossil evidence
• fossil  record
• remains of fossil

Multiple Select

What two methods are used to divide and classify the geological time scale?

• Living organisms

• rock strata or layers

• DNA

• fossils

Multiple Choice

Which time period is the longest?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Multiple Choice

Paleozoic, Mesozoic & Cenozoic are all

• Epochs
• Eras
• Periods
• Eons

Multiple Choice

When classifying time using the Geologic Time Scale which unit is the largest unit of time?

• Period

• Eon

• Epoch

• Era

Multiple Choice

The Mesozoic Era is found in which Eon?

• Phanerozoic

• Precambrian

Multiple Choice

A unit of geologic time that subdivides eras

• period
• time span

Multiple Choice

The Triassic Period, the Jurassic Period, and the Cretaceous Period occurred in what era?

• Cenozoic
• Mesozoic

Multiple Choice

Scientists divided the time between Precambrian Time and the present into three units of time, or eras.

• True
• False

Multiple Choice

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era