science 3rd quarter Flashcards
large, nearly perfect slope structure from alternate solidification of both lava and pyroclastic deposit
composite cone or stratovolcano
build from ejected lava fragments
cinder cone
has a steep slope, wide crater and most abundant of the three volcano types
cinder cone
three volcanic cones
shield cone
cinder cone
composite cone
formed by accumulation of lava that oozes out from the volcano
shield cone
formed from a non-viscous lava that flow freely, producing a broad, slightly domed structure that looks like a warrior’s shield
shield cone
what are these volcanic materials ejected from the volcano
lava
broken rocks
lava bombs
fine ash
dust
a period weak to violent eruption characterized by fountain lava
strombolian
types of volcanic eruptions
phreatic or hydrothermal
phreatomagmatic
strombolian
vulcanian
plinian
a stream-driven eruption as the hot rocks come in contact with water
phreatic or hydrothermal
short-lived, characterized by ash columns
phreatic or hydrothermal
a violent eruption due to contact between water and magma
phreatomagmatic
a large column of very fine ash and high-speed and sideway emission of pyroclastic called base surges
phreatomagmatic
characterized by tall eruption columns that reach up to 20 km high with pyroclastic flow and ashfall tephra
vulcanian
excessively explosive type of eruption of gas and pyroclastics
plinian or vesuvian
sign of impending volcanic eruption
drying up of springs/wells around the volcano
increase in the temper of hot springs
magmas with low silica content are
less viscous
magmas with high silica content are
more viscous
property of the material’s resistance to flow
viscosity
the higher the temperature the magma
the less viscous the magma
the lower the temperature of magma
the more viscous the magma
magma with low amount of gas
is more viscous
magma with high amount of gas
is less viscous
built in an area where it is particularly hot just below the surface such as near the geysers, hot springs or volcanic activity
power plants
imaginary lines on a globe or map that measure distance in degrees north or south of the equator. They are parallel to the equator
latitude
usual weather condition in a particular place or region for a long period of time
climate
near the equator
tropic zone
receives a lot direct sunlight
tropic zone
temperatures are high most of the year
tropic zone
land here can be desert or tropical rainforest
tropic zone
three main climate zones
polar zone
temperate zone
tropic zone
farthest from equator
polar zone
indirect sunlight all year long
polar zone
coolest temperature of all the climate zones
polar zone
far from the equator
temperate zone
indirect sunlight but receives more sunlight than the polar zone
temperate zone
is the distance fron the sea level
altitude
transport warm water and rain from the equator toward the poles
ocean currents
regulate global climate
ocean currents
in the northern hemisphere, the currents flow in a
clockwise direction
in the southern hemisphere, the current flows in
counterclockwise direction
caused by the earth’s rotation deflecting the circulating air.
coriolis effect
process when the earth’s atmosphere becomes thick with greenhouse gases
greenhouse effect
refers to any significant change in the measures of climate lasting for an extended period of time
climate change
gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the green house effect
global warming
happens when the temperature in eastern pacific rises above normal. trade winds that moves from east to west are weakened
el nino
occurs when the temperature in eastern pacific decreases below normal. trade winds that moves from east to west are strengthened
la nina
effects of el nino
severe droughts
stronger thunderstorm
massive storm
effects of la nina
early rainy season
short dry season
strong monsoon activity
more tropical cyclones
above normal rainfall
refers to “christ the child”
el nino
a massive ball of plasma that emits light throughout the universe
star
the process where two atoms of hydrogen fuse together to form an atom of helium
nuclear fusion
the process releases a tremendous amount of energy and makes stars shine brightly
nuclear fusion
physical characteristics
color
temperature
size
brightness
its brightness as seen from earth
apparent brightness
depends on how far away a star is from earth
apparent brightness
the brightness the star would have if all stars were the same standard distance from earth
absolute business
allows astronomers to compare the brightness of all stars
absolute brightness
unit of distance used by astronomers to compare the brightness of all stars
light year
the distance that light travels in one year
light year
roughly equal to 9.5 million kilometers
light year
are even smaller about 20 km in diameter
neutron stars
depends on both its size and temperature
brightness
what color is the hottest star
blue
stars are made up mostly of ____ and they produce their energy by nuclears fusion
hydrogen and some helium
group of stars that, when seen from earth, form a pattern showing imaginary pictures of animals, objects and people
constellation
what did christian filipinos named the tree stars (orion’s belt)
tatlong maria/tres marias
the stars in the sky are divided into 88 constellations
42 animals
28 objects
14 humans
2 chimeras
2 nature
(the southern cross) is the brightest constellation
crux
constellation with greatest number of visible stars in it (101 stars)
centaurus
(the water snake) is the largest constellation (which extends 3.158% of the sky)
hydra
different constellations are seen throughout the year. This is due to
revolution
the stars on the same side as the sun cannot be seen because
the sunlight overpowers all the starlights
known as (north star) directly above the earth’s north pole
polaris
lepu
aquila
late may
time to clean the fields while waiting for harvest time
interpreted the appearance of ___ as the end of planting seaso. and it signified rich harvest
gemini
pandarawa
pleiadis
january
start of planting what kind of crops to plant and how wide the area for planting should be
baha
taurus
December to February
clearing of forests
in the northern hemisphere, the constellation ____ indicates the coming of cold season
oriob
malihe
march
planting of rice, corn or vegetables
balatik
orion’s belt
February
start of planting and setting traps to protect the crops from animals
is also used in navigation
constellations
buwaya
june
start of rainy season
malara
canis minor
may
stop planting
gibbang
gemini
april and may
end of planting season;signifies rich harvest
