Earth as a planet
... The oldest rocks on the Earth’s surface are younger – about 4.0 billion years. These are igneous rocks – ie they have formed out of molten material. It is estimated that it would have taken 0.5 billion years for these first rocks to form. Meteorites are generally 4.55 billion years old and the Moon ...
... The oldest rocks on the Earth’s surface are younger – about 4.0 billion years. These are igneous rocks – ie they have formed out of molten material. It is estimated that it would have taken 0.5 billion years for these first rocks to form. Meteorites are generally 4.55 billion years old and the Moon ...
ANALYZING DATA
... The purpose of this is to understand why we have earthquakes, volcanic eruptions, midocean ridges and mountains. Today I will use a variety of ways to communicate data that explains Earth’s plates, plate motions, and the results of plate motions ...
... The purpose of this is to understand why we have earthquakes, volcanic eruptions, midocean ridges and mountains. Today I will use a variety of ways to communicate data that explains Earth’s plates, plate motions, and the results of plate motions ...
100 - Sope Creek Elementary
... If we didn’t spend money on beach reclamation, the beaches would all erode and we wouldn’t have beaches. ...
... If we didn’t spend money on beach reclamation, the beaches would all erode and we wouldn’t have beaches. ...
What Is Inside Earth?
... drilled is only about 12 kilometers (7.5 miles) deep. But the distance to Earth’s center is more than 6,300 kilometers (almost 4,000 miles). So geologists use other ways to collect information about what it is like inside Earth. Scientists get clues about Earth’s interior by studying the lava of vol ...
... drilled is only about 12 kilometers (7.5 miles) deep. But the distance to Earth’s center is more than 6,300 kilometers (almost 4,000 miles). So geologists use other ways to collect information about what it is like inside Earth. Scientists get clues about Earth’s interior by studying the lava of vol ...
GLY 3171 Geomorphology of the United States Course Description
... d. List coastal activities involved with erosion and deposition, giving several examples of features developed by waves, currents and tides. e. Discuss the erosional and depositional activities of wind, and give examples of the resulting erosional and depositional features. f. Explain the developmen ...
... d. List coastal activities involved with erosion and deposition, giving several examples of features developed by waves, currents and tides. e. Discuss the erosional and depositional activities of wind, and give examples of the resulting erosional and depositional features. f. Explain the developmen ...
Charles Lyell: Principles of Geology [adapted from http://www.pbs
... the common belief among geologists and other Christians that unique catastrophes or supernatural events -- such as Noah's flood -- shaped Earth's surface. According to this view, a once-tumultuous period of change had slowed to today's calmer, more leisurely pace. Lyell argued that the formation of ...
... the common belief among geologists and other Christians that unique catastrophes or supernatural events -- such as Noah's flood -- shaped Earth's surface. According to this view, a once-tumultuous period of change had slowed to today's calmer, more leisurely pace. Lyell argued that the formation of ...
Seasons on Earth Reading to help
... Now Sunlight Hits Earth Figure 4 shows how sunlight strikes Earth's surface. Notice that sunlight hits Earths surface most directly near the equator. Near the poles, sunlight arrives at a steep angle and is spread out over a greater area. That is why it is warmer near the equator than near the poles ...
... Now Sunlight Hits Earth Figure 4 shows how sunlight strikes Earth's surface. Notice that sunlight hits Earths surface most directly near the equator. Near the poles, sunlight arrives at a steep angle and is spread out over a greater area. That is why it is warmer near the equator than near the poles ...
presentación - Vicens Vives
... Earth’s surface, especially on rocks. – Rocks and minerals in the Earth’s crust. – Identify rocks and minerals and distinguish between them. – Classify different types of rocks. ...
... Earth’s surface, especially on rocks. – Rocks and minerals in the Earth’s crust. – Identify rocks and minerals and distinguish between them. – Classify different types of rocks. ...
Q: What theory explains why the continents move? Q: What causes
... Q: What is another name for stress squeezing an object? ...
... Q: What is another name for stress squeezing an object? ...
TEKS_Geology
... fossils, and biozones based on fossil succession to determine chronological order; (B) calculate the ages of igneous rocks from Earth and the Moon and meteorites using radiometric dating methods; and (C) understand how multiple dating methods are used to construct the geologic time scale, which repr ...
... fossils, and biozones based on fossil succession to determine chronological order; (B) calculate the ages of igneous rocks from Earth and the Moon and meteorites using radiometric dating methods; and (C) understand how multiple dating methods are used to construct the geologic time scale, which repr ...
Inner Core
... Asthenosphere – semi -solid rock that flows slowly in upper & middle part of mantle where convection currents happen (to re-watch video showing convection currents in the mantle, go to https://www.youtube.com/watch?v=MmMX83diwl0 and watch first 30 sec.) Mesosphere – middle layer - mantle Outer Core ...
... Asthenosphere – semi -solid rock that flows slowly in upper & middle part of mantle where convection currents happen (to re-watch video showing convection currents in the mantle, go to https://www.youtube.com/watch?v=MmMX83diwl0 and watch first 30 sec.) Mesosphere – middle layer - mantle Outer Core ...
the proof-----seafloor spreading
... new ocean crust is being created at midocean ridges (which are large mountain chains underwater) and destroyed at deepsea trenches. •This is proof that the plates are moving along on a “conveyor belt” so Wegner’s idea on continent drift was correct. ...
... new ocean crust is being created at midocean ridges (which are large mountain chains underwater) and destroyed at deepsea trenches. •This is proof that the plates are moving along on a “conveyor belt” so Wegner’s idea on continent drift was correct. ...
Lesson 3
... The focus is the place where the earthquake began. The point on the surface directly above the focus is the epicenter. 3. With regard to the model showing the blocks moving up and down, emphasize that this movement shows a waterfall forming and falling rocks and trees. Have students discuss how the ...
... The focus is the place where the earthquake began. The point on the surface directly above the focus is the epicenter. 3. With regard to the model showing the blocks moving up and down, emphasize that this movement shows a waterfall forming and falling rocks and trees. Have students discuss how the ...
CE SG back matter - Washington Middle School
... Ocean basin; also called the Circum-Pacific Belt. risk: Exposure to the chance of injury or loss. rock: A solid earth material made of various minerals. Igneous, metamorphic, and sedimentary are three types of rock. rock cycle: The process by which earth materials transform from one rock type into a ...
... Ocean basin; also called the Circum-Pacific Belt. risk: Exposure to the chance of injury or loss. rock: A solid earth material made of various minerals. Igneous, metamorphic, and sedimentary are three types of rock. rock cycle: The process by which earth materials transform from one rock type into a ...
Earthquake
... Seismic Waves A vibration that travels through Earth carrying the energy released during an earthquake. ...
... Seismic Waves A vibration that travels through Earth carrying the energy released during an earthquake. ...
presentation source
... – ‘Shadow’ zone indicates that S waves do not travel through the core at all. – Implies that Earth’s core is liquid (or acts as a liquid). ...
... – ‘Shadow’ zone indicates that S waves do not travel through the core at all. – Implies that Earth’s core is liquid (or acts as a liquid). ...
Plate Tectonics and Reality
... Science is still silent on solstice. During summer solstice, ice melts at Arctic and glaciers are formed at Antarctic. The reverse process happens during winter solstice. But, since solar heat increases, the formation of ice decreases and melting increases. This take place, year after year. That is ...
... Science is still silent on solstice. During summer solstice, ice melts at Arctic and glaciers are formed at Antarctic. The reverse process happens during winter solstice. But, since solar heat increases, the formation of ice decreases and melting increases. This take place, year after year. That is ...
earth: inside and out - American Museum of Natural History
... Life on Earth is possible because of the "Goldilocks effect": itʼs in just the right place (neither too close nor too far from the Sun) and is made of just the right stuff (water plus the six elements of which 95% of life consists). Everywhere on the planet that theyʼve looked, scientists have found ...
... Life on Earth is possible because of the "Goldilocks effect": itʼs in just the right place (neither too close nor too far from the Sun) and is made of just the right stuff (water plus the six elements of which 95% of life consists). Everywhere on the planet that theyʼve looked, scientists have found ...
Core and Mantle Studies
... How do these layers interact? In the early 1960s, Hess proposed that deep-sea trenches were zones where denser oceanic lithosphere plates moved downward through the less-dense asthenosphere. ...
... How do these layers interact? In the early 1960s, Hess proposed that deep-sea trenches were zones where denser oceanic lithosphere plates moved downward through the less-dense asthenosphere. ...
The Dynamic Earth Section 1
... The Structure of the Earth • Earth’s outer core is a dense liquid layer. • At the center of Earth is a dense, solid inner core, which is made up mostly of iron and nickel. • Although the temperature of the inner core is estimated to be between 4,000°C to 5,400°C, it is solid because it is under enor ...
... The Structure of the Earth • Earth’s outer core is a dense liquid layer. • At the center of Earth is a dense, solid inner core, which is made up mostly of iron and nickel. • Although the temperature of the inner core is estimated to be between 4,000°C to 5,400°C, it is solid because it is under enor ...
Forces in Earth`s Crust Objectives After completing
... After completing the lesson, I will be able to: • 1) explain how stress in the crust changes Earth’s surface • 2) describe where faults are usually found and why they form • 3) identify the land features that result from plate movement ...
... After completing the lesson, I will be able to: • 1) explain how stress in the crust changes Earth’s surface • 2) describe where faults are usually found and why they form • 3) identify the land features that result from plate movement ...
Spherical Earth
The concept of a spherical Earth dates back to around the 6th century BC, when it was mentioned in ancient Greek philosophy, but remained a matter of philosophical speculation until the 3rd century BC, when Hellenistic astronomy established the spherical shape of the earth as a physical given. The paradigm was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages. A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's expedition's circumnavigation (1519−1522).The concept of a spherical Earth displaced earlier beliefs in a flat Earth: In early Mesopotamian mythology, the world was portrayed as a flat disk floating in the ocean and surrounded by a spherical sky, and this forms the premise for early world maps like those of Anaximander and Hecataeus of Miletus. Other speculations on the shape of Earth include a seven-layered ziggurat or cosmic mountain, alluded to in the Avesta and ancient Persian writings (see seven climes).The realization that the figure of the Earth is more accurately described as an ellipsoid dates to the 18th century (Maupertuis).In the early 19th century, the flattening of the earth ellipsoid was determined to be of the order of 1/300 (Delambre, Everest). The modern value as determined by the US DoD World Geodetic System since the 1960s is close to 1/298.25.