Plate Tectonics
How many secondary plates are there?
8
What is a tsunami?
Tsunamis are ocean waves created by events such as earthquakes.
What are the agents of mechanical weathering?
Animal action, Freezing and thawing, plant growth, release of pressure, and abarasion
What does THIS type of weathering do?
It Dissolves things
What are earthquakes caused by?
They are caused by fault movements.
What tectonic plate are we currently standing on?
The North American Plate.
What are tsunami's detected by?
Surface Buoys.
What does THIS type of weathering do?
It manually breaks rocks.
What are the agents of chemical weathering
Water, oxygen, carbon dioxide, living organisms, and acid rain.
What causes earthquakes?
Gravity and Friction
What is the biggest plate
The Pacific Plate
How do you know when a tsunami is coming?
When the waves are farther away from a beach
What is abrasion?
When some sand and rock particles get carried by the wind, water, and ice that wear away an exposed rock surface.
What is chemical weathering?
Chemical weathering is when things like water mix with acids, causing rocks to dissolve.
What is the point origin of an earthquake?
The Epicenter
How many tectonic plates are there?
15
what term do scientists not use for tsunamis
tidal wave
What does mechanical weathering freeze and thaw?
R
O
C
K
S
What is oxidization?
It is when Oxygen combines with another substance, like iron, and rusts rocks.
How are earthquakes detected?
Seisometers
What German scientist thought of the idea of tectonic plates?
Alfred Wegener
What tsunami impacted almost all of the countries in the Indian Ocean?
The Indian Ocean Tsunami
What rock structure was broken by Mechanical Weathering?
The old man of the mountain
How does Acid rain form?
Fossil fuels and chemicals infect the rain.
How are earthquakes measured?
With the Richter scale