Show:
Earth Surface
Vocabulary
Mountains/Volcanoes
Earthquakes
Vocabulary/Misc.
100
Landform
What is a physical feature on Earth's surface?
100
Crust
What is the outer, very thin layer of Earth?
100
Magma
What is hot, soft rock from the mantle?
100
Earthquake
What is the shaking of ground from energy release in the crust?
100
There is no wind or water to erode the footprints.
Why would footprints made on the moon last for hundreds of years?
200
Weathering
What is a process in which soil, sand, and sediment are formed?
200
Mantle
What is the middle layer of Earth?
200
From the collision of two continental plates.
How do most of the highest mountains form?
200
Fault
What is the place where pieces of the crust move?
200
Because of the great pressure at the center of the Earth.
If the center of the Earth is its hottest part, why is it solid?
300
Erosion
What is a process of moving sediment from one place to another?
300
Core
What is the center and hottest layer of Earth?
300
Volcano
What is an opening in the crust through which lava flows?
300
The 1964 earthquake in Alaska
Which earthquake on the table was the most powerful?
300
The plates float on the soft rock of the lower mantle, which has currents like water.
What does it mean to say that the Earth's plates "float"?
400
Deposition
What is a process of dropping sediment in a new location?
400
Plate
What is the rigid block of crust and upper-mantle rock?
400
Shield Volcanoes, Composite Volcanoes, and Cinder Cone Volcanoes
What are the three different kinds of volcanoes?
400
The 1994 earthquake in California.
Which earthquake on the table was the least powerful?
400
The North American and European plates are moving away from each other.
What does it mean to say that "the Atlantic Ocean is getting wider, pushing Europe and North America apart"?
500
Mass Movement
What is a downhill shifting of rock and soil because of gravity?
500
Continental Drift
What is the theory of how continents move over Earth's surface?
500
Fossils
What is the remains or traces of past life found in the crust?
500
They push together, pull apart, and slide past each other.
Describe three ways in which Earth's plates interact.
500
Pangea
What is the "supercontinent" on Earth millions of years ago?