1 / 52

What surrounds Earth?

What surrounds Earth?. Earth’s Atmosphere: . A tmo - means gas . -sphere means area. The Atmosphere. Earth’s Atmosphere: Is a layer of gases that surrounds the planet. Is over 600km thick. Makes conditions on Earth suitable for Living Things. 600km.

dalila
Download Presentation

What surrounds Earth?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. What surrounds Earth? Earth’s Atmosphere: Atmo- means gas. -sphere means area. The Atmosphere

  2. Earth’s Atmosphere: • Is a layer of gases that surrounds the planet. • Is over 600km thick. • Makes conditions on Earth suitable for LivingThings. 600km

  3. Each layer ranges in thickness depending on time of year. In the winter the atmosphere layers are not as thick. The atmosphere can be divided into 5 distinct layers

  4. Thermosphere Mesosphere Stratosphere Troposphere Earth

  5. Main atmospheric gases: • The gases that make up most of the atmosphere are ______ & ______. • Ozone is a form of oxygen found in the Stratosphere. • Water Vapor is important for weather conditions in the troposphere.

  6. Exosphere (outer) • Blends into outerspace. Outer space contains no air molecules. Satellites and space shuttle orbit the Earth here.

  7. Thermosphere (Heat) • Even though the air is thin (not dense) it is very Hot. • hottest layer (2000 degrees C) • thickest layer (about 400Km thick) • sometimes called the ionosphere • Even though it has the highest temperatures it would still feel cold because the air molecules are to far apart.

  8. Mesosphere (Middle) • Coldest layer. • Most meteors burn up here to create shooting stars. • Meteors burn up because of friction. (Because they collide with gas particles)

  9. Stratosphere (layer area) • Is cold except for its upper region where there is a lot of Ozone. • contains ozone layer which absorbs harmful ultraviolet (UV) rays from the sun. Video clip of stratsophere: Bill Nye clip of Tropo and Stratosphere 3min.asf

  10. Click: good ozone and stratosphere vid 1min

  11. Troposphere (Change) • It’s where all weather occurs. • Has the greatest air pressure. • As altitude increases temperature decreases.

  12. Cfcs and ozone video: Ozone and CFCs pretty good 3min

  13. Atmospheric Gases

  14. 5 Layers of the Atmosphere Space Shuttle Reentry Video: ..\Weather 1 videos\space shuttle reentry.asf http://www.wimp.com/

  15. Atmosphere P.P. Questions Name:______Period:____ 1. What layer contains the most ozone? 2. What is the coldest layer? 3. What does the prefix -Atmo mean? 4. What layer has the greatest air pressure? 5. What would happen if the atmosphere disappeared?

  16. Air (atmospheric) Pressure • the force exerted on you by the weight of the atmosphere. • How hard air (the atmosphere) is being pulled down by gravity at a given location. • Air pressure decreases as you gain altitude.

  17. Air pressure decrease as you go up

  18. Air (Atmospheric) Pressure at Sea Level is 14.7lbs per square inch.

  19. What is the energy source that powers Weather? The Sun (through radiant energy).

  20. 3 Forms of Water Clouds • Liquid-, ______, rain, rivers, lakes, oceans. • Solid– snow, sleet (freezing rain), _______, _____, and sometimes clouds. • Gas – ______________ (invisible). Frost Hail Water Vapor

  21. During the Water Cycle water changes it’s form! Parts of the Water Cycle: 1. Evaporation: When water turns from a liquid to water vapor (a gas).

  22. 2. Transpiration: when plants change water from a liquid to gas. Can a plant turn liquid water into water vapor? YES

  23. Condensation 3. ______________: When water (H2O) turns from water vapor back into a liquid (clouds or dew) or sometimes a solid (frost)

  24. 4. Precipitation- when water falls from a cloud. (rain, snow, sleet, hail). Temperature determines form of the water.

  25. 5. Surface water flow (runoff):any waterflowing over the surface of the earth from higher to lower ground.

  26. Groundwater flow (runoff): 6.________________________the flow of water underground. Porous vs. Non-porous ground.

  27. Surface water Flow . Groundwater Flow

  28. Wally the water molecule is waiting on his friend __________. For weeks, they have been planning an adventure to Snow Cap Mountain. Wally and __________ are going to travel through the water cycle to get to Snowcap Mountain, and back home again. (note: Wally is in liquid form) When ________ gets here I guess we will use the ground water flow to get to the ocean. Ground Water Flow Pacific Ocean 50km. Ground Water Flow Ground Water Flow

  29. What is going on? What is going on? What is going on? What is going on? What is going on?

  30. Condensation Condensation Precipitation Transpiration Evaporation Surface Water Flow Groundwater Flow COLLECTION

  31. Water Cycle

  32. Water Cycle Hydrosphere – all the waters of the Earth. Water is ALWAYS moving between the atmosphere and the surface of the Earth. Plays an important role in weather and climate. Energy from the SUN powers the water cycle. There are 4 steps in the Water Cycle.

  33. The Steps of the Water Cycle 1) Evaporation – liquid to gas, caused by the Sun Transpiration – water evaporating from plants 2) Condensation – gas to a liquid, caused by cooling as gas rises in atmosphere, clouds form as a result. 3) Precipitation – falling liquid/frozen water 4) Runoff – all water that falls on Earth will eventually find its way back to sea level. http://www.delta-education.com/science/foss/correlations/SouthCarolina.pdf

More Related