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Earth as a System Section 1 Earth`s Interior, continued
Earth as a System Section 1 Earth`s Interior, continued

... • The three compositional zones of Earth’s interior are divided into five structural zones. • lithosphere the solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle ...
powerpoint - High Energy Physics at Wayne State
powerpoint - High Energy Physics at Wayne State

... 7.3.2 Atmospheric Composition and Origin • The composition is summarized in the table below. • This isn’t the whole story. • Water in the oceans • Carbon dioxide locked in carbonaceous matter. ...
Chapter 7 lessons 1,2 and 6 Review
Chapter 7 lessons 1,2 and 6 Review

... convection currents to form in a fluid. When the heat source is removed from the fluid, the convection currents will _________________________ ...
Geology 12 with elaborations - BC Curriculum
Geology 12 with elaborations - BC Curriculum

... • Consider social, ethical, and environmental implications of the findings from their own and others’ investigations ...
File
File

... Seismic waves: vibrations that travel through Earth carrying the energy released during an earthquake. : the first waves that expand and compress the ground like an accordion that causes particles of rock to move in a back and forth direction. P waves travel through and ...
Rocks and Minerals
Rocks and Minerals

... • Occurs where tectonic plates spread apart at Mid Ocean Ridges • Magma rises from upper mantle creating new crust (sea floor) . • New “younger” sea floor pushes the existing “older” sea floor out (laterally) explaining why continents move. –Evidence that supports the theory of Continental Drift. ...
5 Time Marches On - Columbus Humanities Middle School
5 Time Marches On - Columbus Humanities Middle School

... After the dinosaurs went extinct, mammals no longer had to compete with them for resources. As a result, mammals have become more dominant during the Cenozoic. Many features of mammals may have helped them survive the climate changes that caused the extinction of the dinosaurs. These features includ ...
Kump_Ch07_TH - Camosun College
Kump_Ch07_TH - Camosun College

... • Thick fill or unconsolidated sediment amplifies ground motion due to surface waves: local geology & proximity both affect amplitude • More ground motion, more & infrastructure building damage ...
Unit 9 - Princeton ISD
Unit 9 - Princeton ISD

... (Model of Earth & its Layers) OBJECTIVE FOR THE DAY: 3-D Model of Earth’s Structure Elaborate / Evaluate: Discuss limitations of models. Discuss how this model is another example of a “scale” model, just like the solar system models made in the past. Students will create a paper 3-D model of the lay ...
Heat and the Atmosphere
Heat and the Atmosphere

... Convection: Transfer of heat energy through motion of liquid or gas caused by differences in density. Warm air rises ...
Rocks and Minerals Prep
Rocks and Minerals Prep

... Rocks and minerals are used in construction, hygiene products, and decorations ...
Unit 4 - Dynamic Crust Earthquakes & Volcanoes
Unit 4 - Dynamic Crust Earthquakes & Volcanoes

... (Remember what that is?...hint: think crust) is divided into solid sections of rock called “plates.” These plates move in relation to one Another. Tectonics are the forces that cause the Earth’s crust to continually move and create new landforms such as mountains, mid-ocean ridges, trenches, or faul ...
1. How does the water cycle show interactions of Earth systems?
1. How does the water cycle show interactions of Earth systems?

... erosion occurs when the sediments are carried by agents of erosion ( water, wind, or glaciers) to new locations ...
Obs
Obs

... -- Thrust faulting in the near-surface -- Flow of weak crustal rocks at depth -- Isostatic response to thicker (buoyant) crust  Mountains (Himalaya, Andes) Epeirogeny: At divergent plate boundaries and continental rifts, get: -- Thinning of the crust and lithosphere -- Hot rock brought nearer the E ...
Unit 1 Powerpoint
Unit 1 Powerpoint

... difference between oceanic & continental crust convection currents seismic waves data as evidence plate tectonics & major plates types of plate boundaries ...
raven_ch05_lecture_modified
raven_ch05_lecture_modified

... Gases in thin air absorb x-rays and short-wave UV radiation = very hot Source of aurora ...
Science
Science

... 1. When continental plates pull apart at a divergent boundary on land, a(n) ____________________ forms. 2. The part of the mantle called the ____________________ is made of soft rock that bends like plastic. 3. In the asthenosphere, heat is transferred as soft rock flows slowly in cycles known as __ ...
Forces in the Crust Day 2 - Hicksville Public Schools / Homepage
Forces in the Crust Day 2 - Hicksville Public Schools / Homepage

... Earth’s Crust Activity Sheet; Review Results HW: Work on Tectonics Activity Sheet; Tectonics Exam, February 13 (due to Tomorrow’s Blizzard). ...
Earthquake Unit Assessment Retake Preparation
Earthquake Unit Assessment Retake Preparation

Obj 3 - Net Start Class
Obj 3 - Net Start Class

... 32. The images above show how the Moon appears on eight different days of a month from the same position on Earth. Which statement best explains why the Moon appears to change as seen from Earth? (8.7B) a. The Moon only revolves around Earth and does not rotate. b. Earth casts a shadow on the Moon a ...
G6 U10 PlateTectonics
G6 U10 PlateTectonics

... Liz LaRosa for use with my 5th Grade Science Class http://www.middleschoolscience.com 2009 From http://www.middleschoolscience.com/PlateTectonics.ppt ...
Name: Date: General Review Study Guide According to Wegener`s
Name: Date: General Review Study Guide According to Wegener`s

... Low-mass and medium-mass stars become white dwarfs when they run out of fuel. According to the theory of plate tectonics, the lithosphere is made up of a number of plates that contain oceanic and continental crust. These plates are in constant slow motion, driven by convection currents in the mantle ...
handbook - Tinybop
handbook - Tinybop

... Why do you think scientists call Earth a ”living planet”? ...
The Four Spheres of the Earth
The Four Spheres of the Earth

... The atmosphere is the body of air which surrounds our planet. Most of our atmosphere is located close to the earth's surface where it is most dense. The air of our planet is 79% nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses. It also inc ...
Rock Cycle {PowerPoint}
Rock Cycle {PowerPoint}

... The student knows that cycles exist in Earth systems. The student is expected to A ...
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Age of the Earth



The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.
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