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Unit 3 Energy in the Earth System
6th Grade Unit 3 Energy in the Earth System. Textbook Science Fusion Holt McDougal
17
Science
6th Grade
11/03/2016

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Term
Earth System
Definition

all of the matter, energy, and porcesses within Earth's boundary

 

 

Term
Geosphere
Definition

is mostly solid, rocky part of Earth

 

It is broken into 3 layers:

Crust, Mantle, Core

Term
Hydrosphere
Definition
the liquid water on Earth
Term
Cryosphere
Definition
The frozen water on Earth
Term
Atmosphere
Definition
a mixture of mostly invisible gas that surrounds Earth
Term
Biosphere
Definition
is made up of all living things and the areas of Earth where they are found
Term
Atmosphere
Definition

The mixture of gases that surrounds Earth., It is often referred to as AIR. 

 

Our Atmosphere is made up of:

78% Nitrogen

21% Oxygen

1% Other

Term
Air Pressure
Definition
the measure of the force with which air molecules push on an area of a surface
Term
Layers of the Atmosphere
Definition

Space


Exosphere (leaving Earth's Atmosphere)

Thermosphere - upper layer, very few molecules

Mesosphere - temperture decreases with altitude. This is where meters burn

Stratosphere - Temperture increase with altitude. The OZONE LAYER is here

Tropsphere - the lowest layer, where all life lives. It is 80% of the mass of the atmosphere. Temperture decreases with altitude

Term
Ozone Layer
Definition
is in the stratosphere. It absorbs most of the solar radiation.
Term
Greenhouse Effect
Definition
the process by which gases in the atmosphere, such as water vapor and carbon dioxide, absorb and give off infrared radiation (heat).
Term
Temperature
Definition

a measure of the average kinetic energy.

(the faster a particle moves, the more kinetic energy it has)

Term
Thermal Energy
Definition

the total kinetic energy of particles. 

(Depends on the number of particles. The more particles there are in an object, the greater the object's thermal energy). 

Term
Thermal Expansion
Definition
the increase in volume that results from an increase temperture
Term
Heat
Definition
the energy that is tranferred between objects that are at different tempertures
Term
Radiation
Definition

the transfer of energy (heat) through electromagnetic waves.

 

Ex: the Sun RADIATES heat to Earth

Term
Convection
Definition

the transfer of energy (heat) due the movement of matter.

 

GASES & LIQUIDS

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