Geologic Time Scale

Question 1

Which plate is represented by the letter "E"

Accepted Answer

Caribbean

Question 2

The plates are moving at different speeds and in different directions.

Accepted Answer

True

Question 3

What can we NOT learn from looking at an undisturbed column of rock?

Accepted Answer

What the earliest Earth was like

Question 4

What was Alfred Wegener's hypothesis about the continents?

Accepted Answer

The continents were together but have since drifted apart.

Question 5

When two plates move away from each other

Accepted Answer

Divergent Boundary

Question 6

When two continental plates of equal density come together you get

Accepted Answer

Mountains

Question 7

weight: 1 The Earth will remain exactly the way it is now for billions of years.

Accepted Answer

False

Question 8

Homo Sapiens (modern humans) and Neanderthals (cavemen) lived at the same time.

Accepted Answer

True

Question 9

When two plates come together

Accepted Answer

Convergent Boundary

Question 10

Why did scientists of the day reject Alfred Wegener's theory?

Accepted Answer

He couldn't provide a reason for why the plates were moving

Question 11

Where you have a divergent boundary under water

Accepted Answer

Sea Floor Spreading

Question 12

When the ocean floor sinks beneath a deep ocean trench and gets recycled back into the mantle.

Accepted Answer

Subduction Zone

Question 13

Rock layers show the sequence of geological events and can help establish

Accepted Answer

relative age

Question 14

About how old is the earth?

Accepted Answer

4.5 Billion Year Old

Question 15

People and dinosaurs lived on Earth at the same time.

Accepted Answer

False

Question 16

What is the difference between lava and magma?

Accepted Answer

Lava is above ground and magma is below ground.

Question 17

What evidence was Alfred Wegener missing to support his theory of Continental Drift?

Accepted Answer

Plates were moving apart at mid ocean ridges

Question 18

The oldest sea floor rocks can be found in the mid ocean ridge.

Accepted Answer

False

Question 19

Which layer has the convection currents?

Accepted Answer

The mantle

Question 20

How can Earth scientists reconstruct events in Earth's planetary history?

Accepted Answer

By analyzing rock layers

Question 21

What is the driving force behind the plates moving?

Accepted Answer

Convection currents in the mantle

Question 22

Which plate is represented by the letter "K"?

Accepted Answer

Arabian

Question 23

When two plates come together but one is more dense than the other

Accepted Answer

Subduction Zone

Question 24

Where you have a divergent boundary on land

Accepted Answer

Rift Valley

Question 25

When two plates try to slide past one another in opposite directions

Accepted Answer

Transform Boundary

Question 26

What is the nickname for the area on Earth with the most active tectonic activity?

Accepted Answer

The Ring of Fire

Question 27

Which layer of the Earth's interior is where convection currents take place?

Accepted Answer

Mantle

Question 28

How can there be fossils of ocean organisms on the tops of mountains?

Accepted Answer

The land that formed the mountains was once under water

Question 29

What feature usually forms due to sea floor spreading?

Accepted Answer

Mid-Ocean Ridge

Question 30

What can we learn from looking at an undisturbed column of rock?

Accepted Answer

The youngest rocks are on top

Question 31

What is the name for when all of the land masses were joined together?

Accepted Answer

UrKontinent, Pangea

Question 32

Which layer is represented by the letter E?

Accepted Answer

Asthenosphere

Question 33

Which plate has a subduction zone on the west coast of South America?

Accepted Answer

Nazca

Question 34

Even the oldest oceanic crust is much "younger" than continental crust.

Accepted Answer

True

Question 35

What can scientists study to figure out the age of the Earth?

Accepted Answer

Meteorites

Geologic Time Scale

Questions 35

Geologic Time Scale

Questions 35