ET 2 Relative Dating and Fossils

Which of the following is the oldest?

• Layer L
• Intrusion D
• Intrusion H
• Layer E

Tags

NGSS.MS-ESS1-4

The age of a rock compared to the ages of other rocks is the rock's

• absolute age
• geologic age
• sedimentary age
• relative age

Tags

NGSS.MS-ESS1-4

An igneous intrusion is...

• always younger than the layers it cuts across

• always older than the layers it cuts across

• the same age as the rock it melted

• none of the answers are correct

What are the relative ages of the features in order from oldest to youngest?

• Limestone, Basalt, Fault, Siltstone
• Siltstone, Fault, Basalt, Limestone
• Limestone, Fault, Basalt, Siltstone
• Limestone, Siltstone, Fault, Basalt

Tags

NGSS.MS-ESS1-4

Which layer is the oldest?

• A
• B
• C
• D

Tags

NGSS.MS-ESS1-4

Which fossil makes the best index fossil?

• Fossil 1
• Fossil 2
• Fossil 3
• None follow all of the rules

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What can we say about all of the fossil 2s?

• they are all about the same age
• they are all found in the same place

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What is the best reason that fossil #4 is NOT a good index fossil?

• It is not widespread

• it is not short-lived (in numerous layers)

• It is in half of the outcrops

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

If fossil 3 is 100 million years old, what do we know about fossil 2?

• 2 is more than 100 million years old

• 2 is less than 100 million years old

• 2 is younger than 3

Fossil 2 is 250 million years old. Which statement best describes the age of fossils 1 and 3?

• Fossil 1 is more than 250 million years old and 3 is less than 250 million years old

• Fossils 1 and 3 are less than 250 million years old

• Fossil 1 and 3 are more than 250 million years old

• None follow all of the rules