• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
The Geosphere (ecology jan.30 - feb. 3)
 

The Geosphere (ecology jan.30 - feb. 3)

on

  • 2,055 views

 

Statistics

Views

Total Views
2,055
Views on SlideShare
2,055
Embed Views
0

Actions

Likes
0
Downloads
29
Comments
0

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    The Geosphere (ecology jan.30 - feb. 3) The Geosphere (ecology jan.30 - feb. 3) Presentation Transcript

    • The Geosphere Ecology I Mr. Nettles
    • Class Motto
      • Discipline fuels character!
      • Character builds hope!
      • Hope assures your future!
    • Announcements
      • Review Day will be Thursday!!
      • Quiz will be Friday!!
        • The quiz will cover all material from last week up until Wednesday of this week.
      • Remember to review your notes at least 10-15 minutes each night!!
    • Agenda- Monday, January 30, 2012
      • Warm Up
      • “ The Geosphere”
      • Wrap Up (LIA)
      • Draw and Label Diagram of Earth’s Composition & Structure
    • Today’s Objectives
      • Describe the composition and structure of the Earth.
      • Define geosphere, crust, mantle, core, lithosphere, and asthenosphere
    • Warm Up (Jan. 30)
      • How do nonrenewable and renewable resources differ?
      • Define biodiversity. What does it mean when we say “loss of biodiversity”?
      • Who or what is the major source of pollution to our environment?
    • The Earth as a System
      • The Earth is an integrated system that consists of rock, air, water, and living things that all interact with each other.
      • Scientists divided this system into four parts:
        • The Geosphere (rock)
        • The Atmosphere (air)
        • The Hydrosphere (water)
        • The Biosphere (living things)
    • The Earth as a System
    • The Earth as a System
      • Hydrosphere = all of the water on or near the Earth’s surface
        • Most of this water is in the oceans and makes of 75% of the globe.
      • Biosphere = part of the Earth where life exists
        • A thin layer at the Earth’s surface that extends from 9 km above the Earth’s surface to the bottom of the ocean.
        • It is made up of the geosphere, the atmosphere, and the hydrosphere.
    • The Earth as a System
      • Geosphere = solid part of the Earth that consists of all rock, the soils, and sediments on Earth’s surface
        • The geosphere is mostly located in the Earth’s interior .
      • Atmosphere = mixture of gases that make up the air we breathe
        • Nearly all these gases are found in the first 30 km above Earth’s surface.
    • The Earth’s Interior
      • Scientist use seismic waves to learn about Earth’s interior.
    • The Earth’s Composition
      • Scientists divide the Earth into three layers: the crust, the mantle, and the core.
      • Crust = the thin and solid outermost layer of the Earth above the mantle.
        • The crust makes up less than 1% of Earth’s mass.
      • Mantle = the layer of rock between the Earth’s crust and core.
        • The mantle makes up 64% of Earth’s mass.
    • The Earth’s Composition
      • Core = the central part of the Earth below the mantle.
    • The Earth’s Composition
    • The Earth’s Structure
      • The structure of the earth can be divided into five layers based on physical properties. Those layers are: lithosphere, asthenosphere, mesosphere, outer core and inner core.
      • Lithosphere = the solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle.
        • The lithosphere is divided into pieces called tectonic plates.
    • The Earth’s Structure
      • Asthenosphere = the solid, plastic layer of the mantle beneath the lithosphere
        • The asthenosphere is made of mantle rock that flows slowly, which allows tectonic plates to move on top of it.
      • Mesosphere = the lower part of the mantle beneath the asthenosphere
    • The Earth’s Structure
      • Outer Core = a dense liquid layer made up of super-heated molten lava
      • Inner Core = a dense, solid inner layer made mostly of the metals iron and nickel
      • The inner core and outer core make up about 33% of the Earth’s mass.
    • Wrap Up (Jan. 30)
      • What was one fact that you Learned today?
      • What was the most Interesting thing about today’s class?
      • How can you Apply or use the information that you learned today?
    • The Geosphere Ecology I Mr. Nettles
    • Class Motto
      • Discipline fuels character!
      • Character builds hope!
      • Hope assures your future!
    • Agenda- Tues., January 31, 2012
      • Warm Up
      • Sketch and Label Diagram
      • Short Video : “Why Earth Science?”
      • Wrap Up (based on short video)
    • Today’s Objectives
      • Describe the composition and structure of the Earth.
      • Define geosphere, crust, mantle, core, lithosphere, and asthenosphere
    • Warm Up (Jan. 31)
      • List the three layers that form the Earth’s composition and tell one fact about each layer.
      • Which layer of the Earth’s structure is divided into huge pieces called tectonic plates?
      • Which layer of the Earth’s structure is made mostly of mantle rock that flows slowly ?
    • Sketching and Labeling
      • You will sketch a diagram on the next slide, and you will add necessary artistic features and colors. Be Creative and Neat!
      • You will label the following: crust, mantle, core, lithosphere, asthenosphere, mesosphere, outer core, and inner core.
      • You will add no more that TWO facts from your notes about each feature that you label. For example :
        • Crust = thinnest outermost layer
        • = makes up less than 1% of Earth’s mass
    • Diagram of Earth’s Composition & Structure
    • The Geosphere Ecology I Mr. Nettles
    • Class Motto
      • Discipline fuels character!
      • Character builds hope!
      • Hope assures your future!
    • Agenda- Wed., February 1, 2012
      • Warm Up – 10 minutes to finish up diagrams
      • “ The Geosphere”….cont.
      • Short Video : “Why Earth Science?”
      • Wrap Up (based on short video)
    • Today’s Objectives
      • Describe the Earth’s tectonic plates.
      • Explain the main cause and effects of earthquakes and volcanoes.
      • Describe how wind and water alter the Earth’s surface.
      • Define tectonic plates and erosion.
    • Diagram of Earth’s Composition & Structure
    • Plate Tectonics
      • Tectonic plates = blocks of lithosphere that consist of the crust and the rigid, outermost part of the mantle and glide across the underlying asthenosphere.
        • Continents are located on and move around tectonic plates.
        • Major tectonic plates = the Pacific, North American, South American, African, Eurasian, and Antarctic plates
    • Plate Tectonics
      • Tectonic plates may separate, collide, or slip past one another producing large forces.
      • These large forces occur along the plate boundaries and cause:
        • mountains to form
        • earthquakes to shake the crust
        • volcanoes to erupt
    • Earthquakes
      • Fault = break in the Earth’s crust where blocks of the crust slide past one another
      • Earthquakes are a series of ground vibrations that occur when stressed rocks break along a fault.
    • The Energy of Earthquakes
      • Magnitude = the measure of energy released by an earthquake
      • The smallest magnitude that can be felt is 2.0 , and the largest magnitude ever recorded is 9.5 .
      • Magnitudes greater than 7.0 cause widespread damage.
    • Where Do Most Earthquakes Occur?
      • The majority of earthquakes take place at or near tectonic plate boundaries.
      • Over the past 15 million to 20 million years , large numbers of earthquakes have occurred along the San Andreas fault in California , where parts of the North America plate and the Pacific plate are slipping past one another.
    • Volcanoes
      • Volcano = a mountain built from magma, or melted rock, that rises from the Earth’s interior to the surface
      • Volcanoes are often located near tectonic plate boundaries where plates are either colliding or separating from one another.
      • The majority of the world’s active volcanoes on land are located along tectonic plate boundaries that surround the Pacific Ocean.
    • Global Effects of Volcanic Eruptions
      • Large volcanic eruptions contain clouds of volcanic ash and sulfur rich gases.
      • Those clouds may spread across the upper atmosphere and reduce sunlight that reaches the Earth’s surface.
      • Reduced sunlight = decrease in average global surface temperature.
    • The Effects of Wind and Water Erosion
      • Erosion = the process in which materials of the Earth’s surface are worn away and transported from one place to another by a natural agent such as wind and water
      • Examples of Water Erosion:
        • Ocean waves erode coastlines to form cliffs or plateaus.
        • Rivers flow and carve deep gorges in rocky landscape.
    • The Effects of Wind and Water Erosion
      • Examples of Wind Erosion:
        • Strong winds on deserts and beaches blow soil away very quickly.
        • Strong winds erode soft rock such as sandstone and hard rock such as granite.
    • Wrap Up (Feb. 1)
      • Why is Earth Science important? List two interesting reasons from the video.
      • What are the scientist call who study the Earth?
      • What are some the environmental issues that humans will have to face or solve ?
    • The Geosphere Ecology I Mr. Nettles
    • Class Motto
      • Discipline fuels character!
      • Character builds hope!
      • Hope assures your future!
    • Announcements
      • Today will be a Make-Up Day!!
      • Quiz will be MONDAY!!
        • The quiz will cover all of the information from class this week and your diagrams.
      • Tomorrow, we will play Review Jeopardy!!
    • Agenda- Thurs., February 2, 2012
      • Complete diagrams if you were absent and missed this graded assignment.
      • Complete Active Reading worksheet. This will be due at the beginning of class tomorrow.
      • Study for your test or work on A-Plus.
    • Diagram of Earth’s Composition & Structure
    • The Geosphere Ecology I Mr. Nettles
    • Class Motto
      • Discipline fuels character!
      • Character builds hope!
      • Hope assures your future!
    • Announcements
      • Monday will be your test Review Day!!
        • We will play Review Jeopardy!
      • Quiz will be TUESDAY!!
        • The quiz will cover all of the information from class this week and your diagrams.
      • Today, you will complete a crossword puzzle about plate tectonics, using the Internet as a resource.
      • “ Active Reading” assignments are due from yesterday.