SCIENCE (second quarter periodical examination)

Divergent Boundary

moves away from each other or separates from each other.

Convergent Boundary

moves towards each other.

Transform Fault Boundary

also called as the “strike-slip fault” that slides past each other.

Continental Crust

A __________ curves upward on top of the oceanic crust due to its lesser density.

Trench

when an oceanic crust converges with a continental crust, a crack between the crusts underwater called ______, is formed.

Subduction

_________ is the process by which a plate dives under a less dense plate.

Magma

At the mantle, the leading edge of the subducting plate melts or becomes fluid. It turns into a hot molten material which we call _______.

Magma Plume

The column of rising magma is called a ______.

Earthquake

When there is volcanic activity such as an eruption, the ground moves, and so an _________ is felt.

Volcanic arc

Because subduction continues, a group of volcanoes, called _______.

Tsunami

The water may flip or kick upwards to a few meters high. This is what we call ________, a Japanese term for harbor wave.

Tsunamis, Earthquakes

he convergence of two oceanic crusts results in some similar events compared to the first type of convergence _______ may be formed, _______ may happen.

Volcanic Island Arc

_________ since it is surrounded by water.

Collision zone, Fault

Converging continental crusts or plates result in a ________, which could cause shallow earthquakes. At that place, a crack called ______ is formed.

Mountain Ranges

group of high landforms that we call ________.

Under Bodies Of Water

where does divergence of plates usually take place inland or under bodies of water?

Magma

as plates move apart, a tension zone is formed. Which between magma and water, rises to the tension zone?

It widens

if divergence continues, what could probably happen to the size of the space between the splitting crusts? Will it widen or stay the same?

New Crust

as the materials at the tension zone reach the surface and cool down, will the materials form a new crust or another layer of the mantle?

Divergent Plate Boundaries

_________ mostly happen under the oceans.

Rift Valley

a vertical space that may extend deep down into the lowest layer of the crust is created, It is a ________.

Tension Zone

The force of separation creates a ________.

Ocean Ridges

These materials pile up near the tension zone forming mountain-like structures called ________.

Seafloor Spreading

the filled-up space between the plates becomes a new seafloor. This process is known as ________.

Sliding past each otherue to this plate movement, what geologic event do you think may happen?

as indicated by the arrows, analyze how the two plates move relative to each other. Do they move towards, away, or sliding past each other?

Earthquake

due to this plate movement, what geologic event do you think may happen?

Fault

since the two plates move, will a fault be formed or a trench, at the tension zone?

Transform Fault Boundary

_______ is mostly found in oceans, but there are few that traverse through continental crust

Earth’s Mechanism, Lithosphere plates

_________deals with the forces action on ________ to move in a particular direction.

Thermal Convection, Convection current

the motion is a result of ________ in the mantle due to the ________ formed.

Mantle

a layer beneath where the less dense hot molten material rises and sinks.

Asthenosphere

a soft, weak and plastic-like layer, the upper part of the mantle where lithosphere plate floats and move.

Magma

hot molten rocks formed beneath the earth’s surface.

Convection Current

facilitates the movement of the lithosphere plates.

1960’s

the plate tectonic theory was developed in ______.

Divergent, Convergent, Transform fault boundaries

what are the different types of plate tectonic boundaries?

Earthquakes, subduction

what are the geologic events?

Formation of mountains, Trenches

what are the geologic features?

Convection Current

________ is a heat transfer process that involves the movement of energy from one place to another.

Fluid, Gas Particles, or Molten Rocks

the convection current tends to move a _____, _________, or __________.

Radiation and Conduction

convection is one of the kinds of heat transfer, the other two are ________ and _______.

Mantle

the convection current also happens in the ________.

Mantle, Hot rocks and Magma

it is the second layer of the earth that is made up of ______ and ______, is it a avery hot layer and because of the heat generated by the core.

Decay or breakdown of radioactive elements

the source of heat from the core is due to the __________.

Alfred Wegener (1880-1930)

a German polar researcher geophysicst and meteorologist.

Alfred Wegener, 1912

he is remembered as the originator of the continental drift theory by hypothesizing in ______.

Slowly drifting around the earth

the continents are claimed to be ________.

Pangea

the earth and is once a large landmass called ______.

Pangea, “All Earth”

from a greek word which means _______?

Permian, Triassic, Jurassic, Cretaceous, Present day

the five evolution of the super continent?

225 million years, 200million years, 135 million years, 65 million years, present day

the years of each evolution of the super continent?

Edges of South America and Africa

Wegener’s curiosity about the idea of drifting continents started when he noticed the __________ on a world map could be fitted like a jigsaw puzzle.

Mantle Convection, Inner layer

is a process by which thermal convection occurs in the _______ of the earth.

Lithospheric Plates, Asthenosphere

________ are the uppermost layer of the earth, and they are flowing in an area called the ________.

Asthenosphere

_________ is a soft less rigid upper part of the mantle.

Slowly and continuously, when the hot less dense material rises

plates moves _______ when the _______.

Lithosphere at the Divergent Boundary

________ will uplift and tear apart due to the rising of hot magma.

Sinking of Magma, Convergent Boundary

_________ pulls down to th etectonic plate at a ________

Slab Pull

in the process of _______ the presence of a heavier subducting plate pulls down the trailing slab into the subduction zone.

Ridge push or Gravitational Sliding Process

in a ______ or ______ the old oceanic crust becomes heavier than the new oceanic crust and sinks.

Diverse pieces, Geological “fit” and fossil evidence

after Wegener collected ________ of evidence to support his theory including
_______.

Geological “fit” evidence

_________ is the matching of large-scale geological features on different continents.

Glaciers

__________ carve rocks and leaves marks as they move.