Geological Time Scale

What are the two major types of geologists?

• those that study rocks and those that study fossils

• those that study Earth's processes and those that study Earth's history

• those that study the old rocks and those that study newer rocks

• those that study earthquakes and those that study volcanoes

Why does the Professor Alvarez say that “atmospheres and oceans forget but rocks remember”?

• Atmospheres last for millions of years and rocks last for billions of years.

• Liquids and gases last longer than solids do.

• Liquids and gases are always moving but solids stay the same for long periods of time.

• Rocks are smart and atmospheres and oceans are dumb.

What are the different types of tools that geologists use to study rocks?

• hammer

• compass

• mass spectrometers

• all of these

Approximately how long ago did the earth form?

• 4.6 billion years ago
• 4.2 billion years ago
• 3.8 billion years ago
• 3. 6 billion years ago

Tags

NGSS.MS-ESS1-4

What is the largest division of time in the geological timescale?

• Eon

• Era

• Epoch

• Period

Tags

NGSS.MS-ESS1-4

Periods are broken up into smaller chunks of time called?

• Epochs
• Periods 
• Jurrasic
• Ions

What is the next smallest division of time after eras in the geological timescale?

• Eon

• Epoch

• Age

• Period

Tags

NGSS.MS-ESS1-4

Which of the following describes what the first life form resembled?

• Eukaryotes
• Plants
• Bacteria
• Fungi

Tags

NGSS.MS-LS4-2

What gas was necessary for complex (eukaryotic) life to evolve?

• Carbon dioxide
• Oxygen
• Dihydrogen monoxide
• Methane

Fossils

• The preserved evidence in rocks or soils of organisms that were once alive

• A scientist who studies prehistoric life

• When a part of the organism is changed into another mineral

• Circular rocky structures thought to be the earliest evidence of living organisms called the cyanobacteria

Tags

NGSS.MS-LS4-1