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science10
New Terms
86
Science
10th Grade
04/25/2012

Additional Science Flashcards

 


 

Cards

Term

 

Kinetic molecular theroy

Definition

Everything is made of atoms and molecules, and they are constantly in motion.

ex) The Stone.

[image]

 

Term

 

Energy

Definition

Energy is the power of doing something, and it can be converted from one to another.

 

Common three types of energy are thermal energy, potential energy(the possibility of having energy), and kinetic energy(movement).

Term

 

Mass

Definition

The quanity of an object or we usually say how much something "weight", but actually what we "weight" is "mass". Mass keeps constant but weight not necessary.

ex) My mass is 135 lb

Term

 

Volume

Definition

The amount of space of an object contains or fills.

ex) a water bottle with a volume of 500cm3

 

 

 

Term

 

Density

Definition

how thick a thing is, related to the thing's mass and volume.

                        M÷V=D

When the volume keeps constant, as the mass increase, the density increase.

ex)Oil's density is smaller than water.

Term

 

Temperature

Definition

It is the measure of the average energy of the molecules of a thing(Kinetic energy), or we can say it is the degree of hotness(speed).


Term

 

Measuring Temperature 

Definition

Temperature can be measure in Celsius, Fahrenheit, or Kelvin. 


ex) Celsiu scale defines that boiling point of water at 100οC.

Term

 

Thermal Engery

Definition

It is the overall energy in a substance, or we can say it is the Quantity of hotness(mass & speed).


♣ The more kinetic energy a thing has, the more thermal energy it has.

ex) a cup of boiling milk has the same temperature as a pot of boiling milk, but the large pot of milk has more thermal energy.

Term

 

Heat

Definition

It is the energy transferred from one thing to another due to their difference in temperature, and heat flows from hotter body to a colder body when they are together.

ex) my hand touches a hot spoon and I feel warm.


Term

 

Conduction

Definition

A type of heat transfer from one thing to another through actual touching. Cause everything is in motion(KMT) :one thing has fast-moving moleculars beacse of the increasing heat, and they collide with another moleculars and transfer heat.

ex) the cold spoon makes your hand feel cold. 

Term

 

Convention

Definition

Type of heat transferred by the movement of fluid from one place to another. 

KMT: As kinetic energy increase, things move faster and farther apart. The hot air or gas has lower density and raises while the cold one with higher density sinks

ex) the uniform heating of the air in a room or water in a kettle.


Term

 

Conductors&Insulators

Definition

Conductors allow electricity or heat to travel through it, but insulators block the flow of heat. To make sure a heat transfer current, we have to use a conductor because it doesn't absorb radiant heat.

ex)Conductors: metal and glass

     Insulators: wood

Term

 

Fluids

Definition

Any liquids and gases, and they can flow freely, having lower density but higher kinetic energy.


Term

 

Radiation

Definition

Energy being transferred by waves(light, electromagnetic radiation) without any direct contact.


ex) The sun emits UV rays

Term

 

Heat Transfer

Definition

The prosses of passing heat on one colder thing from a hotter thing.


ex) Convection, radiation, conduction

Term

 

Atmosphere

Definition

The mixture of gases that surrounds the Earth.

                   [image]

Term

 

Troposphere

Definition

♣ Lower layer of atmoshere.

As the altitude increase, the temperature drops.

[image]

Term

 

Stratosphere

Definition

Located above troposhere.

♣ The Ozone layer is a part of the stratosphere


Term

 

Mesosphere

Definition

Above the stratosphere, and it is about 50km to 80km above sea level.

Term

 

Thermosphere

Definition

Above the mesosphere.

♣Due to the radiation, this layer can be extremely hot--about 1500 to 3000οC.

Term

 

Exosphere

Definition

Outler layer of atomsphere

[image]

Term


Albedo

 

 

Definition

The amount of radiation reflected by a surface.

♣An high albedo means that object can reflect more radiation and absorb less heat, and vice versa.

ex) Forest has a low albedo, so it absorbs most of the radiation, and snow has a high albedo, so it reflects most of the radiation

Term

 

Negative feedback loop

Definition

A path that continuously getting worst and worst.

[image] 

 

 

Term

 

Weather

Definition

The "emotion" of the atmosphere during a short period of time. It includes preciptation, air pressure, humidity, winds, and so on.


ex) today's weather is sunny with a short light rain


Term

 

Air presseure(atomosphere pressure)

Definition

Air has pressure; for example, an empty plastic bottle will becomes crushed over a period of time.

Basically, air pressure is the mass of air that put above on Earth's surface.

              [image]

Term

 

Air Mass

Definition

It is a large body of air having nearly even conditions of temperature and humidity. They forms when the air contact with the land or sea for a long time.(so that they can receive enough temp. and water)

Term

 

High Pressure&Low Pressure Systems

Definition

High pressure forms when air mass cold over land.

Low pressure forms when air mass moves over warm land and sea.


Term

 

Prevailing Winds

Definition

BC: The moist air mass from pacific Ocean blows to the coastal mountains and forms rain. Therefore only dry air blows to the interior.

           [image]

Term

 

Onshore Breeze

Definition

In day time, the land is hotter than the sea. Due to convection current, the cool air sinks and replace the hot air in the land, that also brings water towards the land.

  [image]

Term

 

Offshore Breeze

Definition

At the night, land is cooler and the sea is wamer. Due to convection(oppsite direction), the warm air above the sea raise and replace the cooler one on land, that causes the water moves away from the land.

[image]

Term

 

The Coriolis effect

Definition

The rotation of Earth causes the changing direction of air, or things. It makes winds to the right in northern hemisphere and to the left in the southern.

[image]

Term

 

Global wind patterns

Definition

Three major wind: trade, prevailing, and polar(wind from the poles).

[image]

Term

 

Jet Streams

Definition

Long, narrow, high-speed air that flows eastward in a mostly horizontal direction in the stratosphere. They are nearer the equator and move faster in the summer.

[image]

Term

 

Fronts

Definition

The transition area or boundary between two air mass with different density and temperature. Usually with couldiness and precipitation.

[image]

Term

 

Tornadoes

Definition

Terrible, low-pressure storm, narrow, but with very rapidly rotating winds; it looks like funnel.

[image]

Term


Hurricanes

Definition

It also called tropical cyclones--a large system of winds that form in the lower latitudes, and they are smaller but tend to be more violent.(great damage)

[image]

Term

 

El Nino

Definition

It is very bad for fishing and agriculture, and it caused by an unusual weakening of the normally westward-blowing wind, which allows warm surface water to spread eastward.

[image]

Term

 

La Nina

Definition

It is always related to El Nino and often follows El Nino. Very strong wind lets Pacific water move west. 

[image]

Term

 

Continental Drift Theroy

Definition

German scientist Alfred Wegener posed that the continents are not used to be the present area;instead, they are drift to nowadays' place though a long period of time. (Supercontinent=panagea)

[image]

Term

 

Jigsaw Puzzle Fit

Definition

A piece of edivence supports Wegener's thought--all the continents can be fit together naturally like the Jigsaw

Term

 

Matching Fossils

Definition

Another piece of edvience--similar fossils are found in different continents.


ex) Ferns(fossil) could grew in cold climate; however, they are found almost every continents, and that support the "Pangea".



Term

 

Matching Geological Structures and Rocks

Definition

Some mountains ranges are found to begin on one continent and end at coast line then show up on another continents far away. Rocks are also found similar on several continent. 


ex) the same type of rocks are found in Greenland and Norway.



Term

 

Climatic Evidence

Definition

Places in different continent have inverse climate.


ex) India is in tropical climate zone, but it has big glaciers aound. That prove it was used to be in a colder place.



Term

 

paleomagnetism

Definition

Earth has magnetic poles(south&North) and magnetic field, and they are slowly changing over  a long time. 

Scientists found out there was a pattern that rocks on the sea level appear on two sides of the Mid-Atlantic Ridge.

Term

 

Hot Spot

Definition

A place where melting rocks pop out to Earth`s surface.


ex)Hawaiian Island is formed passes over a hot spot

Term

Plate

Tectonic Theory

Definition

Wilson`s thought which explain the movement of Earth`s surface, supporting Wegener`s idea.

Term

 

Geological Time

Definition

The time used to describe Earth`s geologic history.It is divided into eon, era, period, and epoch.

Term

 

Crust

Definition

It is the most outside part of the Earth. It is mostly made up of a range of igneous rock types. It is about 5-70km thick.

            [image]

 

Term

 

Lithospher

Definition

More hard, mostly made up of rocks;it is a part of upper mantle.

Term

 

Asthenospher

Definition

A part of uppermantle, under the lithosphere. It is mostly fluid, and it is hotter. KMT allows the matter moves apart, and a convection currents.

 [image]

Term

 

Mantle

Definition

Beneath the crust, mostly made up magnestium and iron

Term

 

Outler Core

Definition

Below the mantle. It is liquid and made up mostly of mixture of iron and nickel.

Term

 

Inner Core

Definition

The centre of the Earth, and it is mostly made up of iron and some nickel where it`s utterly hot and extremly high dense.

[image]

Term

 

Mantle Convection

 

Definition

One of the reason why the Earth`s surface move. The covention current in mantle(asthenosphere) and  helps move the continents.

Term


Ridge Push

Definition

New things at a the top of a mountain rift pushes older things aside, and the plate are move away.

[image]

Term

 

Subduction

Definition

One dense plate pushes under another plate.


ex) Tsunami 2004 and the Krokatau tsunami of 1883 both started at this subduction zone.

Term

 

Slab Pull

Definition

When the edge of a plate stab under another`s , it pll the rest of the plate with it.

[image]

Term

 

Plate Boundaries

Definition

It is the place where two plates are meeting or touching.

ex) The black thick lines are plate boundaries.

[image]

Term


Divergent plate boundaries 

Definition

It refers to two plates spreading apart(split).

Itoften follows by deep earthquakes, melting rocks, and the form of rift eruption.

ex) The Mid-Atlantic Ridge,separating American from Asia.

Term

 

Transform plate boundaries

Definition

It is two plate slide past each other, so it only causes shallow earthquakes and faults, along with no volcanoes and no melting rocks.

ex) San Andreas Faults of Califorina in the U.S.A

[image]

Term

 

Faults

Definition

The rock layer breaks down because of the movement of transform plate boundaries.

Term

 

Oceanic Crust

Definition

It is a dense but thin layer in the crust, made up of mostly basalt.

Term

 

Continental Crust

Definition

It is thicker but less density than the oceanic crust, mostly made up of lighter  rock-type--granite. 

Term

 

Convergent plate boundaries

Definition

It refers to the collision of two plates, followed by earthquakes and melting rocks which leads to the form of volcanoes, making deep se trench.

Term


Oceanic-continental plate convergence


Definition

The denser oceanic crust pushes under the continental crust, casuing volcanoes belt. Convection causes the form of volcanoes.

ex) Cascade Mountain range

[image]

Term

 

Volcanic belt

Definition

Simply a long chain of volcanoes.


ex) volcanic belt was formed along North America`s west coast by plate movement.

Term

 

Trench

Definition

Technically a long narrow valley in the ground beneath the sea.

ex)


[image]

Term

 

Oceanic-oceanic plate convergenc

Definition

Two oceanic crust collides(the denser one is under). It may causes volcano island


ex) The island of Japan and Indonesia.

[image]


Term

 

Continental-continental plate convergence

 

Definition

NO subduction because two mostly equal dense continental crusts collide. It may follows by earthquakes and forms mountains, but no melting rock(therefore no volcanoes).

ex) Himalyan Mountain range between India and China.

Term

 

Earthquakes

Definition

Sudden shaking of the ground caused by the crust of the Earth. They mostly relate to tectonic plates.

ex) Circum-Pacific Belt

Term

 

Focus

Definition

The start point of an earthquake inside the Earth. The energy is released at this point.

[image]

Term

 

Epicentre

Definition

The point on the Earth`s suface directly above the focus.

[image]

Term

 

Seismic wave

Definition

When a earthquake happens, the energy is released and that produces ``shaking``, this kind of vibrations is seismic waves.

[image]

Term

 

Surface waves (L-waves)

 

Definition

They are the waves rolls along Earth`s suface, and they are the slowest waves.

[image]


Term

 

Primary waves (P-waves)

Definition

They are types of fastest body waves that travel though almost everything, and they squeeze and stretch the ground.

[image]

Term

 

Secondary waves (S-waves

Definition

Also known as type of body waves. It is the second wave after an earthquake, and it travel through only soild in a right angle direction.

[image]

Term

 

Seismometers

Definition

The thing used to measure the amount of the movement of the ground. 

Some can particular measure side to side motion while some can measure up and down motion.

Term

 

Seismogram

Definition

Some sort of digram that describes the time of eaethquakes, the duation of the earthquakes, and the surface area of shaking ground.

Term

 

 Magnitude

Definition

It is a number used to describe the strength of an earthquake. The higher the number is, the more terrible the earthquake is.

Term

 

Composite volcanoes

Definition

Large cone-shaped mountains. The Lava it erupts is thicker and contains numeral gases and rocks.

CURRENT AT CONVERGENT(SUBDUCTION) BOUNDARIES.

ex) Mr.ST Helen`s

[image]


Term

 

Shield volcanoes

Definition

Mostly world largest valcanoes, and they are not current at boundaries but above HOT SPOT. 

It erupts thinner lava so they are not very steep.

ex) Hawaii Island

[image]

Term

 

Rift eruption

Definition

It Current at DIVERGENT boundaries, and they are comparatively ``friendly``. 

ex) Along the Mid-Atlantic Ridge, between North American Plate and Eurasian Plate.

Term

 

Pillow Lava

Definition

Varities viscosity and it forms under water. They are smooth and pillow-shaped.

Term

 

A`a

Definition

Having high viscosity, and it move slowly, not as hot as Pahoehoe.

ex)the coastal plain of KÄ«lauea in Hawaii, United States

Term

 

Pahoehoe

Definition

Has Low viscosity, but moves more quickly flows widely and it is very hot.


ex)Pahoehoe from Hawaii

[image]

Term

 

Volcaic Island arc

Definition

Long chain of volcanic island.

ex) The islands of Japan

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