Lesson 1
A ______________ is a mound or a ridge of sand.
What is a dune?
A squeezing or a pushing together or the crust.
What is compression?
What is lava?
The deepest part of the ocean
What is an ocean trench?
A scientist that studies rocks and Earth's surface
What is a geologist?
A circle of volcanoes located around the Pacific Ocean
What is the ring of fire?
This is how height is shown on a topographical map.
What are lines?
These are formed when a continental plate is compressed and the ground is folded upward.
What are folded mountains?
A type of volcano that is built by thick lava thrown high into the air
What is a cinder-cone volcano?
An underwater mountain that rises from the ocean floor but stops before it reaches the surface of the ocean.
What is a seamount?
This mountain range in the United States has fault-block mountains.
What is Sierra Nevada?
This forms when an ocean floor plate is pushed under another ocean floor plate.
What is an island arc?
The mass of land that forms at the mouth of a river.
This dinosaurs fossil was found in very old rocks in South America and Africa.
What is Mesosaurus?
An island arc in Alaska
What are the Aleutian islands?