Minerals & Rock Cycle
Igneous rock has two types extrusive and intrusive, what's the difference?
Extrusive igneous rock is from lava (exited the volcanoes), while intrusive rock is from magma (inside the volcanoes)
If a volcano hasn't erupted in quite some time, then what is it called?
A) Dormant
B) Explosive
C) Composite Volcano
A) Dormant
How do you measure a earthquake?
With a richter scale
What are 4 causes of Tsunamis?
1. Volcanic eruption
2. Landslide
3. Meteorite
4. Volcanic Eruption
Can hotspots develop underwater? Yes or No
Yes
How is igneous rock formed?
Cooling of magma which then hardens and forms a solid
What are the 3 types of volcanoes?
1. Composite
2. Cindercone
3. Shield
Where is the focus of an earthquake?
Where the earthquake originates (started)
Where is the most common place for tsunamis to happen?
Pacific Ring of Fire
Are geysers formed from hotspots, and if so what type of crust is it under?
Yes, geysers can be formed from hotspots, the hotspot would be under the continental crust
What does a synthetic diamond mean?
A lab made diamond
Name 4 types of pyroclasts (fire fragments)
1.Volcanic Blocks
2.Volcanic Bomb 3. Lapilli
4. Volcanic Ash
What is the difference in P-waves and S-waves?
P-waves are vibrations in the same direction that the wave is traveling while S-waves are vibrations that move perpendicular to the direction the wave is traveling
Most tsunamis happen as a result of an undersea earthquake. True or False
True
Name an example of a hotspot underwater
The Hawaiian Islands
What do minerals in our food do
Act as a vitamin to keep us strong
Tell me three things about a shield volcano
1. what types of slopes does it have
2. How eruptive is it
3. An example of a shield volcano
1. Gentle slopes
2. Non-explosive
3.Mauna Kea
What is the epicenter of an earthquake?
The point on surface directly above the focus
Can a volcanic eruption cause a tsunami? True or False
True!
An example of a hotspot that is formed under continental crust, and where is it located (a place ,not continental crust)?
Geysers, Yellowstone National Park
What does Inorganic mean
Not consisting of or being formed from a living or previously living things
Name 2 negative effects of a volcano
1. Kills crops and plants
2. Blocks out sun which can drop the temperature
What are seismographs?
They measure the amount of energy released from an earthquake
What is a wave train of a tsunami?
A series of waves
Define a hotspot
Weak areas in the mantle where magma escapes and rapidly melts crust rock