The Earth
... • 75% of the Earth’s surface is covered by oceans • For the last ~3.8 billion years, the Earth has had a relatively stable water cycle (see video), with possibly a few freeze-ups or “Snowball Earth” episodes… • The planets are misnamed in Chinese: Earth is the “Water Planet,” not Mercury (水星)! ...
... • 75% of the Earth’s surface is covered by oceans • For the last ~3.8 billion years, the Earth has had a relatively stable water cycle (see video), with possibly a few freeze-ups or “Snowball Earth” episodes… • The planets are misnamed in Chinese: Earth is the “Water Planet,” not Mercury (水星)! ...
Benchmark Test Study Guide October 2013 Standard: The student
... 3. What is the epicenter of an earthquake and where is it located? The epicenter is the point on Earth’s surface directly above the focus; energy that reaches the surface is greatest at this point. 4. How do scientists use the time between the arrival of the P waves and S waves to help determine the ...
... 3. What is the epicenter of an earthquake and where is it located? The epicenter is the point on Earth’s surface directly above the focus; energy that reaches the surface is greatest at this point. 4. How do scientists use the time between the arrival of the P waves and S waves to help determine the ...
File
... South America, and the cookie on the right as Africa. Over time they have moved apart. You'll see this ...
... South America, and the cookie on the right as Africa. Over time they have moved apart. You'll see this ...
Waves inside earth In 1864, Jules Verne wrote A
... 1. When S-waves are produced on one side of Earth due to an earthquake, there is a large area on the other side where the waves can’t be detected. 2. Scientists know that secondary waves do not pass through liquids. 3. With this fact and these observations, they realized that the outer core of Earth ...
... 1. When S-waves are produced on one side of Earth due to an earthquake, there is a large area on the other side where the waves can’t be detected. 2. Scientists know that secondary waves do not pass through liquids. 3. With this fact and these observations, they realized that the outer core of Earth ...
Unit 6 geology mining study
... Ancient Climates: when digging in the earth’s ground scientists can find evidence of ancient climates. o It was determined that there were similar climates around the same geologic time frame on two different continents that looks like they could have fit in the same puzzle. Similar rock types & ...
... Ancient Climates: when digging in the earth’s ground scientists can find evidence of ancient climates. o It was determined that there were similar climates around the same geologic time frame on two different continents that looks like they could have fit in the same puzzle. Similar rock types & ...
7th Grade Earth Science State and District Outcomes Summary
... 3.1a Gather, analyze, and communicate data that explains Earth’s plates, plate motions, and the results of plate motions 3.1b Identify, interpret, and explain models of plates motions on Earth 3.1c Use maps to locate likely geologic “hot spots”, using evidence of earthquakes and volcanic activity 3. ...
... 3.1a Gather, analyze, and communicate data that explains Earth’s plates, plate motions, and the results of plate motions 3.1b Identify, interpret, and explain models of plates motions on Earth 3.1c Use maps to locate likely geologic “hot spots”, using evidence of earthquakes and volcanic activity 3. ...
Earth`s Landforms
... • Plate tectonics – Large, slow moving plates that make up Earth’s surface. When moved, they carry continents and the ocean floors! ...
... • Plate tectonics – Large, slow moving plates that make up Earth’s surface. When moved, they carry continents and the ocean floors! ...
Article - Cross Section of the Earth
... plates form the lithosphere, which ranges in thickness from 65 to 100 km (Figure 12.14). There are about 12 major tectonic plates and many smaller ones. There are two types of tectonic plates. Oceanic plates contain the dense rock basalt. Continental plates and the continents themselves contain larg ...
... plates form the lithosphere, which ranges in thickness from 65 to 100 km (Figure 12.14). There are about 12 major tectonic plates and many smaller ones. There are two types of tectonic plates. Oceanic plates contain the dense rock basalt. Continental plates and the continents themselves contain larg ...
ch01 (1)
... 3. Plate tectonics is the grand unifying concept that explains movement of large slabs of Earth’s lithosphere and the effect of this movement in forming Earth’s crustal features. Divergent boundaries are places where plates move apart. Convergent boundaries are places where plates move together. Tra ...
... 3. Plate tectonics is the grand unifying concept that explains movement of large slabs of Earth’s lithosphere and the effect of this movement in forming Earth’s crustal features. Divergent boundaries are places where plates move apart. Convergent boundaries are places where plates move together. Tra ...
Word Bank Crust Inner core Mantle Outer Core Lithosphere
... 1. Where are Earth’s tectonic plates located? A. They float just below the crust. B. They float on top of the inner core. C. They float on top of the lower mantle D. They float on the atmosphere 2. Most of Earth’s mass is in the A. crust. B. mantle. ...
... 1. Where are Earth’s tectonic plates located? A. They float just below the crust. B. They float on top of the inner core. C. They float on top of the lower mantle D. They float on the atmosphere 2. Most of Earth’s mass is in the A. crust. B. mantle. ...
Notes: Plate Tectonics - Riverdale Middle School
... geologists clues about Earth’s structure and conditions deep inside Earth. 2.) indirect evidence from seismic waves. a. When earthquakes occur, they produce seismic waves . b. Geologists record the seismic waves and study how they travel through Earth. ...
... geologists clues about Earth’s structure and conditions deep inside Earth. 2.) indirect evidence from seismic waves. a. When earthquakes occur, they produce seismic waves . b. Geologists record the seismic waves and study how they travel through Earth. ...
Today`s Powerpoint - Physics and Astronomy
... If no other processes (erosion, lava flows) change the surface, the number of craters in an area tells you the age of the surface. ...
... If no other processes (erosion, lava flows) change the surface, the number of craters in an area tells you the age of the surface. ...
Reviewing Vocabulary Reviewing Key Concepts
... b. the home of all life on Earth c. the thickest layer of hot rock d. the thinnest and hottest layer 8. Tectonic plates make up Earth’s a. lower mantle c. asthenosphere b. lithosphere d. inner core 9. Why did many scientists reject Wegener’s continental drift hypothesis? a. He could not explain how ...
... b. the home of all life on Earth c. the thickest layer of hot rock d. the thinnest and hottest layer 8. Tectonic plates make up Earth’s a. lower mantle c. asthenosphere b. lithosphere d. inner core 9. Why did many scientists reject Wegener’s continental drift hypothesis? a. He could not explain how ...
Layers of the Earth Notes
... Earth’s Layers by Composition • Crust – Outermost layer – Thinnest layer – Composed mostly of oxygen, silicon, and aluminum – Two types • Oceanic (found under oceans; more dense) – Twice as much iron, calcium, and magnesium which are more dense minerals ...
... Earth’s Layers by Composition • Crust – Outermost layer – Thinnest layer – Composed mostly of oxygen, silicon, and aluminum – Two types • Oceanic (found under oceans; more dense) – Twice as much iron, calcium, and magnesium which are more dense minerals ...
Physical Science Review for Fall Final Answer in journal, due FRI
... What is an exothermic reaction? What are some chemical and physical properties of metals? How are families of elements similar (columns going down periodic table)? Where are the nonmetals on the periodic table? How can you find out how many energy levels an element has? What are metalloids? What are ...
... What is an exothermic reaction? What are some chemical and physical properties of metals? How are families of elements similar (columns going down periodic table)? Where are the nonmetals on the periodic table? How can you find out how many energy levels an element has? What are metalloids? What are ...
Geo rev 1 (intro)
... Importance of Geology to Climate & CCS Earth’s climate record is stored in rocks Subsurface sequestration sites require geologic ...
... Importance of Geology to Climate & CCS Earth’s climate record is stored in rocks Subsurface sequestration sites require geologic ...
Plate Tectonics Notes
... - To understand how sea-floor spreading works, we have to understand the geology of the planet - Lithosphere: the rigid, cool crust is broken up into a series of “plates” - Asthenosphere: much hotter, and capable of slow movement (like liquid glass, or molasses) - We don’t really know what the mecha ...
... - To understand how sea-floor spreading works, we have to understand the geology of the planet - Lithosphere: the rigid, cool crust is broken up into a series of “plates” - Asthenosphere: much hotter, and capable of slow movement (like liquid glass, or molasses) - We don’t really know what the mecha ...
Igneous Petrology
... Earth’s Interior Core (16%): • 80-85 % Fe + 5-6 % Ni “alloy” + 10-15% light elements--most likely (S + O + Si) • Composition is based on analogy with iron meteorites, density and seismic velocity data • Outer core Is “liquid” ,i.e., it does not transmit S waves • Inner core is solid (pressure effec ...
... Earth’s Interior Core (16%): • 80-85 % Fe + 5-6 % Ni “alloy” + 10-15% light elements--most likely (S + O + Si) • Composition is based on analogy with iron meteorites, density and seismic velocity data • Outer core Is “liquid” ,i.e., it does not transmit S waves • Inner core is solid (pressure effec ...
Earthquakes
... Gap Hypothesis-states that sections at active faults that have had relatively few earthquakes are likely to have strong earthquakes in the future Seismic Gap-an area along a fault where relatively few earthquakes have occurred Moho-a place within the earth where the speed of seismic waves increases ...
... Gap Hypothesis-states that sections at active faults that have had relatively few earthquakes are likely to have strong earthquakes in the future Seismic Gap-an area along a fault where relatively few earthquakes have occurred Moho-a place within the earth where the speed of seismic waves increases ...
Plate Tectonics Notes
... characteristics of rock – material that forms the Earth’s surface and crust. Geologists map where different rock types are – both above and below the surface. They describe landforms – both in terms of how and what created them. Geologists also collect and identify fossils to help determine the age ...
... characteristics of rock – material that forms the Earth’s surface and crust. Geologists map where different rock types are – both above and below the surface. They describe landforms – both in terms of how and what created them. Geologists also collect and identify fossils to help determine the age ...
Plate Tectonics - Canton Local Schools
... Layers of the Earth Earth’s CrustContinental- older, thicker, less dense, granite Oceanic- younger, thinner, more dense, basalt Faults- crack in the crust ...
... Layers of the Earth Earth’s CrustContinental- older, thicker, less dense, granite Oceanic- younger, thinner, more dense, basalt Faults- crack in the crust ...
Geophysics
Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.