Seismic waves
Earthquakes
Alfred Wegener
Earth's layers
Plate tectonic boundaries
100

True or false: S-waves are faster than P-waves

False

100

What is a large tall wave created by an earthquake called?

Tsunami

100

What theory did Alfred Wegener come up with?

The Continental Drift Theory.

100

What is the outermost earth layer?

 The crust

100

What is the name of boundaries that split away from each other?

Divergent boundaries

200

Body waves have a ___ frequency

Higher

200

The epicenter is the point on the surface directly above a ___.

Focus

200

Did Alfred Wegener have any problems while trying to prove his Theory?

Yes, he was harshly criticized.

200

What is the innermost layer in the Earth?

The core

200

What most common plate tectonic boundaries do earthquakes occur on?

Convergent Boundaries

300

What can P-Waves go through

Liquid and Solid

300

Where do earthquakes occur?

Along plate boundaries

300

In the early 1900s, scientists believed ___ connected our continents.

Land bridges

300

The Earth has __ layers.

4

300

How many plate tectonic boundary movements are there?

3

400

What are the fastest surface waves called?

Love waves

400

Earthquakes produce _____ caused by the sudden breaking of rock within the Earth

Seismic Waves

400

In what year did Alfred Wegener propose the Continental Drift Theory?

1912

400

What is the deepest layer we have gone through on earth?

The crust

400

What plate boundary is responsible for the creation of the mid-Atlantic ridge?

Divergent Plate boundary

500

In what motion do S-waves move in.

Side-to-Side

500
What year was the largest earthquake ever recorded?

1960

500

Alfred Wegener died a few days after what event?

His birthday

500

What is the temperature of the Earth's inner core?

9806 F

500

How many large and small plates are there on Earth?

8 large plates and 9 small plates