Earth's History-Unit 3 Lesson 2

Question 1

Determining whether or the age of an object

Answer 1

Relative dating

Question 2

The principle that states that undisturbed rocks will be in chronological order

Answer 2

Superposition

Question 3

A break in the geological record

Answer 3

Unconformity

Question 4

Remains of an organism from many years ago

Answer 4

Fossils

Question 5

Ordered arrangement of rock layers that’s based on relative ages of rocks

Answer 5

Geologic column

Question 6

Through ____________ scientists found the fossil to be hundreds of millions of years old!

Answer 6

Relative dating

Question 7

According to _____________ rocks will lie in chronological order

Answer 7

Superposition

Question 8

A(n) ____________ is a rock section which is out of order

Answer 8

Unconformity

Question 9

Through relative dating scientists found the ______ to be hundreds of millions of years old!

Answer 9

Fossil

Question 10

The _______________ was in incorrect order because of a unconformity

Answer 10

Geologic column

Question 11

What slow process would most likely form a mountain valley?

Answer 11

Glacial erosion

Question 12

How could a geologist best date a canyon, if he has the age of one rock?

Answer 12

Using relative dating

Question 13

How would a geologist find the age of the oldest layer of rock in a lakebed?

Answer 13

By estimation using the age of the top layer