What are the four layers the earth is made out of?
Inner Core, Outer Core, Mantle, and Crust.
100
Where do Earthquakes occur the most?
plate boundaries
100
Where are Volcanoes most fruquent?
Plate Boundaries (especially the ring of fire around the Paific Ocean).
100
What property has to do with the shininess of a mineral?
Luster
100
How are sedimentary rocks formed?
Weathering and Erosion
200
Give at least 3 different pieces of evidence for Pangea
1. Fossils 2. Coal deposits 3. Coastlines fit together
4. Glacial Evidence 5. Mountain Evidence 6. Rock Evidence
200
What are the 3 different types of waves that are created? Which is the most damaging?
Primary waves, Secondary waves, and Surface waves. Sruface waves cause the most damage.
200
What are "hot spots"?
Places where the crust is thin- volcanoes can also occur here.
200
Define streak
The color of the powder of a mineral when scraped against a porcelain plate.
200
Heat, pressure, and chemicals are used to form what kind or rock?
Metamorphic
300
Why do tectonic plates move?
Convection Currents in the Mantle
300
What are giant tidal waves called? (This is when an earthquake occurs under the ocean)
Tsunamis
300
What is magma called when it reaches the surface?
Lava
300
How do you know if a mineral has reactivity?
It bubbles when acid is put on it.
300
Which type of rock contains fossils?
Sedimentary
400
Draw arrows to represent the three different boundries: Convergent, Divergent, and Transform.
convergent --><-- divergent <-- --> transform plates slide past each other
400
What do Richter Sales measure?
Intensity- intensity increases 10 fold for every increase of 1 on the Richter Scale
400
True or False: can volcanoes cause climtate change due to ash in the atmosphere?
True
400
What is the difference between the two typles of breakage?
fracture is when it breaks with jagged sides. cleavage is when it breaks with flat sides.
400
How are igneous rocks formed?
When magma and lava cools it forms igneous rocks
500
Define Subduction
when one plate moves under another and moves toward the mantle where it will melt.
500
What is the difference between the Focus and the Epicenter of the earthquake?
The focus is the place underground where there is a break in a rock layer. The epicenter is the location on the earths surface, directly above the focus.
500
Define dormant and active
dormant is when a volcanoe has no current activity. active is when a volcanoe is currently erupting.