Exploring the Geologic Time Scale

What is the youngest age of amber found?

• 1 million years

• 10 million years

• 500,000 years

• 100,000 years

What is the term used for resin that is younger than a million years?

• Sediment

• Amber

• Copel

• Fossil

Which dating method is used for rocks up to 50,000 years old?

• Potassium-argon dating

• Radiocarbon dating

• Thermoluminescence dating

• Uranium-lead dating

What do geologists use to date ancient rocks billions of years old?

• Potassium-argon dating

• Radiocarbon dating

• Electron spin resonance

• Thermoluminescence dating

What do the layers of sedimentary rock represent?

• Ocean levels

• Geologic time scale

• Various climates

• Different types of soil

Tags

NGSS.MS-ESS1-4

During which period did the first single-celled organisms appear?

• Paleozoic

• Precambrian

• Mesozoic

• Cambrian

What significant event occurred 251 million years ago?

• First appearance of dinosaurs

• First appearance of mammals

• Permian-Triassic extinction event

• Formation of the first oceans

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-LS4-1

Which era is known as the 'Age of Mammals'?

• Paleozoic

• Mesozoic

• Precambrian

• Cenozoic

When did human ancestors start to look like modern humans?

• 2 million years ago

• 500,000 years ago

• 200,000 years ago

• 1 million years ago

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What marked the end of the dinosaurs?

• Quaternary period

• Mesozoic era

• Cenozoic era

• Permian-Triassic extinction event

Tags

NGSS.MS-LS4-1