The Ancient Mesosaurus
Listening to Earth
Journey to a Plate Bounary
A Continental Puzzle
Vocabulary
100

Where have Mesosaurus Fossils been found?

South America and Africa

100

How does Bob Dziak study plat boundaries?

He listens to them

100

Who was the German scientist who first argued that continents on Earth had moved over a long period of time?

Alfred Wegener

100

This inner layer of the earth is made of soft, solid rock.

What is the mantle?

200
What does Mesosaurus mean?

Middle Lizard

200

What is the deepest place in the ocean known as?

Challenger Deep

200

Plate movement cause which two geological events?

Earthquakes and volcanic activity

200

What was the large supercontinent called?

Pangea

200

This outer layer of the earth is made of hard, solid rock.

What is the crust?

300

About how long ago did the Mesosaurus live?

about 300 million years ago

300

What causes earthquakes?

motion of plates

300

Wegner discovered the edges of the continents fit together like what?

Puzzle pieces

300

Plate motion can cause these events, which can range from 1-9 on the Richter scale.

What are earthquakes?

400

Where did the Mesosaurus spend most of its life?

on the water close to land

400

The Mariana Trench lies on which kind of boundary?

Convergent Boundary

400

Similar ______ were found on different continents.

(Fill in the Blank)

Fossils

400

These landforms happen at divergent boundaries under the water.

What are mid-ocean ridges?

500

Did the Mesosaurus have lungs or gills

Lungs

500

What do scientists call smaller earthquakes?

foreshocks

500

True or False: Scientists enthusiastically accepted Wegener's claims?

False

500

This landform occurs when an oceanic plate pushes against another oceanic plate or a continental plate.

What is a trench?