Trimester 3 Basketball Review
Send up a person from your team
If you know the answer grab the ball
1 point for a correct answer and a chance for a
bonus point for getting the ball through the
hoop from the line!
Where do most volcanoes on earth occur?
• Along tectonic plate boundaries
How does silica affect the viscosity of magma?
• More silica means high viscosity…which
means it is thick and doesn’t flow as easily
Which is younger, layer D or intrusion A?
• Intrusion A
Based on the seismic readings, which location is
nearest to the epicenter of the earthquake?
• The seismic station in Oregon is closest
What are the three types of sedimentary rock?
What is the relationship between the size of
mineral crystals and the cooling rate of an
• The slower the magma cools, the larger the
Using the graph, how many years will it take
50% of the C-14 to decay?
• 5730x2=11,460 years
Why is C-14 not used to date objects over 50000
• After 50000 years, there is not enough parent
material left to measure
The preserved remains of living organisms are
What is the S-P interval of the seismogram?
• About 40 seconds (39ish)
If the S-P interval of
an earthquake is 47
seconds, how far
away was the
• 460 km
The order of seismic waves
• Primary (P)
• Secondary (S)
• Surface (L)
The oldest rock layer in the picture
• Layer I
The youngest rock layer in the picture
• Layer H (intrusion)
What is the difference between magma and
• Magma is molten rock underground, while
lava is the same thing on the surface.
Predict the silica content of magma with low
• Low viscosity means that the lava would flow
easily. This would mean a low silica content.
How are the rocks
forming at A
rocks forming at
• Rocks at A are intrusive, they cool slowly from
magma and would have larger mineral crystals
• Rocks at B are extrusive, they cool quickly
from lava and have smaller mineral crystals
Most earthquake hazards are on the West coast.
Why do you thing there is an elevated
earthquake risk here?
• There must be an active fault in the middle of
Fossils that are used to pinpoint ranges of time
within rock layers and help scientists to correlate
layers of rock are known as _______
• Index Fossils
Which organism would make the best index
• Organism A would be best…it is only found in
1 layer and is abundant and occurs over a
large geographic area
The process of sequencing rock layers from
oldest to youngest based on their position.
• Relative dating
The type of volcano with steep sides and
alternating layers of lava and ash. It has the
most violent eruptions
• Composite or Stratovolcano
This law/principle states that in undisturbed
rock layers, each layer is older than the one
• Principle of Superposition
Portions of rock layers that are missing or
altered due to erosion and other disturbances
are called _______________
The type of volcano made of lava flows with
gentle sloping sides
• Shield volcano
Which environment would be least likely to provide
conditions for fossil formation?
A dried up lava flow
A dried up river bed
A dried up tar pit
A block of glacial ice
• A dried up lava flow
The intersection of the 3 circles indicate the
_____ of an earthquake
If you are at a seismic station and there are no Swaves detected from an earthquake, what can
you assume about the earthquake’s location in
relation to where you are?
• The earthquake was on the other side of the
Earth. The S-waves were stopped by the liquid
Based on the graphic, a Plinian eruption reads
what on the VEI scale?
• VEI = 8
If Mt. Holly erupts with a VEI of 5, how long would
you expect there to be between the next eruption?
• 100’s of years
Name one way a large volcanic eruption could
affect one of the spheres
• Geosphere – creates new land, ash adds nutrients
• Hydrosphere – ash gets into waterways and
sediment builds up, gases get incorporated into
water cycle causing acid rain
• Atmosphere – gases and ash are transported long
distances by wind, temperatures may cool as
some gases cause the deflection of sunlight
• Biosphere – living things are destroyed by many
of the hazards, food chains are disrupted
Which type of boundary is responsible for the
volcanoes in Hawaii?
• Hawaii is not on a boundary but is the result
of a hot spot.
What was most likely the cause of the events in
• This tsunami was most likely caused by a large
earthquake under water
What type of metamorphic rock has mineral
bands aligned in layers as pictured below?
Which type of
requires the most
heat and pressure to
Using the half life of radioactive elements
enables you to determine the ______ age of a
rock or fossil.