Global Systems And Solar Energy

Submitted By rylanmartyn
Words: 568
Pages: 3
Open Document
Global Systems and Solar Energy:
A system is the object or group of objects scientists wish to study.
Systems have a boundary, everything other than the system is called the surroundings.
Researchers can learn a lot about a particular system by observing what enters and leaves it.
Systems are classified according to the interactions of a particular system with its surroundings.

Open Systems
Allows energy and matter to cross the systems boundaries, for example: an aspen tree; gases are exchanged and solar energy enters the tree.

Closed Systems
Allows energy but not matter to cross the systems boundaries, for example: the earth; solar energy enters the atmosphere radiant energy is given off.

Isolated Systems
Neither matter nor energy cross the boundary, for example; the universe is the only true isolated system.

Earth as a System
Boundary of Earth is the atmosphere. Solar energy enters the atmosphere. Some energy is reflected and some energy is absorbed.
Some of the energy absorbed by the atmosphere is absorbed by Earth’s surface, and some is reflected away.
All of the energy that is absorbed by the atmosphere and by the surface of the earth is reflected back into space.

Earths Biosphere
Global system
When radiant Sun energy reaches Earth it interacts with a thin layer of air, land and water.
All life exists between this thin layer
1. Air: Atmosphere
2. Land: Lithosphere
3. Water: Hydrosphere
Atmosphere
Mixture of nitrogen and oxygen and other gases that extend 800km above the Earths surface.
Concentrated in the lower 2 layers
1. The Troposphere: planes, Mount Everest (0-12km)
2. The Stratosphere: ozone layer (13-15km)

Lithosphere
Earth’s crust that forms land (continental crust) above sea level and at the ocean bottom (oceanic crust) as well as the upper part of the Earth’s mantle.
Varies in thickness from 100-200km.
Hydrosphere
Water on or near Earth’s surface; includes oceans, lakes, rivers, streams and water in the atmosphere.
Earth’s surface is 70% land, and 30% water.
The hydrosphere plays an important role in sunlight absorption and thermal energy distribution.
Clouds reflect much of the incoming solar radiation.
Cryosphere is temporarily frozen water, for example; polar ice caps, glaciers, snow, permafrost.

Climates and Seasons
Climate is the
Show More

Related Documents: Global Systems And Solar Energy

Essay on Science Notes

Science study notes Key Terms Refraction- the bending or change in the direction of light earn it travels from one medium to another. Angle of refraction- the angle between the refracted ray and the normal Index of refraction- the ratio of the speed of light in a vacuum to the speed of light in a medium Critical angle- the angle of incidence that results in an angle of refraction of 90 degrees Total internal refraction- the situation when the angle of incidence is greater than the…

Words 1605 - Pages 7

Science Chemistry Notes

Science- chemistry notes Definitions: Atoms: Tiny particles that make up all matter. Atoms are made up of protons, neutrons and electrons. Protons and neutrons are heavier than electrons and are located at the centre of the atom, the nucleus. The electrons spin around the nucleus in a region of empty space. Neutrons are neutral-no charge. Protons-have a positive charge. Electrons-have a negative charge. Opposite charges attract each other and this is what keeps the electrons…

Words 2132 - Pages 9

Science Notes Essay

Science Revision. SOUND AND SIGHT OUTCOMESs Identify situations where waves transfer energy. Vibration in the air, in the water, in electric and magnetic fields. Recall that sound is a wave and describe how it is formed and propagates Sound is a wave and it is formed by a vibrational mechanical energy that propagates through matter as a wave. Qualitatively describe the features of waves including wavelength, frequency, speed and amplitude. Frequency: Is the amount of vibrations a wave…

Words 1330 - Pages 6

Political Science Notes Essay

Political Science Notes Foreign Policy I. Constitutional Basis for Foreign Policy Article 2 in the Constitution (PRESIDENTIAL ARTICLE) Framers of the Constitution met in 1787 in Philadelphia. Decided the president should be the person to take the lead in the foreign policy. 1. Allows the president to appoint authorities and to receive representatives officially. They put in Article 2 (authority of the president to appoint ambassadors [big operation in foreign countries], other public ministers and…

Words 1547 - Pages 7

Science 10 notes Essay

Chapter 8 Notes eq \a \ac () 8.1 Definitions: Magnitude refers to the size of a measurement or the amount (number) you are counting. Scalars/Scalar Quantities are quantities that describe magnitude but do not include direction. (4 km/h) Vectors/Vector Quantities are quantities that describe magnitude and also include direction (east, 4 km/h) Representing Vectors To distinguish between scalars and vectors, symbols for vectors in the textbook are bolded and written with arrows above them…

Words 572 - Pages 3

A Brief Note On Science Fail

Name ________________________ Date ________________________ ENGINEERING SCIENCE FAIR -- PLANNING FORM – Keep in Notebook Topic :__________________________________ Do Research to collect background information. Write a brief summary of the background information. _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________…

Words 384 - Pages 2

Religion And Science Chapter 2 Notes

WEEK 3 THURSDAY 4/18/13: RELIGION AND SCIENCE LECTURE NOTES * Hubris: height of arrogance * He is educated and has context, something beyond this world * Believes that in Asia, specifically Korea, there was hubris with Christianity * During time of colonialism * Author states that he is not denouncing Christianity, but the way it was perpetrated on the Korean people. LIINEAR THINKING and DUALISM is not apart of the cultures until you bring the religion to the people.…

Words 352 - Pages 2

Earth Science Notes Essay

ATMOSPHERE A DIRECT RELATIONSHP between the absolute temperature of an object * Sun’s energy created by nuclear fusion * Energy transmitted as electromagnetic radiation moving at the speed of light * The overall all output of solar energy over time is constant * SOLAR CONSTANT—1370 W/M^2 Earth’s Atmosphere is composed of: * Constant Gases * Variable Gases * Particulates 1. Water Vapor: * About 2% at Earth’s surface * Stores heat (a green house gas) *…

Words 461 - Pages 2

Science Yr 10 Notes Essay

Science Skills How to Write a Report 1. Aim: The question you are asking. 2. Hypothesis: ‘If the (independent variable) increases, then the (dependent variable) will increase/decrease/stay the same.’ 3. Method: Should be numbered or dot points 4. Results: Either in a table or graph. Can be observations or measurements or both. 5. Conclusion: Answer the Aim. 6. Evaluation: Talk about accuracy, reliability, validity. 7. Safety: State the piece of safety equipment and why you need it.…

Words 3299 - Pages 14

Health Science Course Note Essay

Lecture 15 – Antibody Effector Mechanisms Antibodies -Abs exist to protect us from extra and intracellular bacteria and parasites, extracellular fungi, viruses, and parasitic worms Effector Function of Abs -neutralization -opsonization -complement activation -antibody dependant cell cytotoxicity or ADCC (cell killing) -mast cell activation Ab Structure -the N-terminus end of the Ab polypeptide is the variable region, which is ‘variable’ as a result of VDJ recombination -the C-terminus…

Words 884 - Pages 4