Earths History Presentation
... • The rate of radioactive decay is measured in terms of half-life. – Half-life is the amount of time it takes for half the atoms of a substance to decay into another element. – Different substances have different half-life’s • Examples are Uranium 238 and Carbon 14. ...
... • The rate of radioactive decay is measured in terms of half-life. – Half-life is the amount of time it takes for half the atoms of a substance to decay into another element. – Different substances have different half-life’s • Examples are Uranium 238 and Carbon 14. ...
Earth structure & magnetism
... • Every so often the magnetic field will reverse. • When it does, so will the minerals in the igneous rocks that form at the time. Stacked lava flows (layers) Rocks at places where new crust is forming (Sea floor spreading = stripes) ...
... • Every so often the magnetic field will reverse. • When it does, so will the minerals in the igneous rocks that form at the time. Stacked lava flows (layers) Rocks at places where new crust is forming (Sea floor spreading = stripes) ...
ROCKING AND ROLLING By Philip Steele DOWN UNDER Our
... it’s so hot that some parts have melted into magma and are as gooey as oatmeal. Beneath the mantle is Earth’s core. This is made of mental and has two layers-an out and an inner core. The outer core is runny because it’s so hot. But although the inner core is even hotter, it’s solid. Why? Because th ...
... it’s so hot that some parts have melted into magma and are as gooey as oatmeal. Beneath the mantle is Earth’s core. This is made of mental and has two layers-an out and an inner core. The outer core is runny because it’s so hot. But although the inner core is even hotter, it’s solid. Why? Because th ...
Physical Science Review for Fall Final Answer in journal, due FRI
... Physical Science Review for Fall Final ...
... Physical Science Review for Fall Final ...
Chapter 1
... (You may wonder, why we are not reading chapter 2. It is on minerals, the building blocks of rocks. If this course was designed for geology majors, we would read chapter 2, but since this a course for non-science majors, there is more detail in that chapter than you will need in this course. Of cour ...
... (You may wonder, why we are not reading chapter 2. It is on minerals, the building blocks of rocks. If this course was designed for geology majors, we would read chapter 2, but since this a course for non-science majors, there is more detail in that chapter than you will need in this course. Of cour ...
137 Amazing Facts of Earth Science
... 69. Sedimentary subclasses include clastic, organic, and chemical. 70. Limestone is formed both chemically and organically. 71. Clastic rocks are made of fragments- Conglomerate, sandstone, and shale. 72. Virginia resources include limestone, coal, and gravel. 73. Renewable resources can be replaced ...
... 69. Sedimentary subclasses include clastic, organic, and chemical. 70. Limestone is formed both chemically and organically. 71. Clastic rocks are made of fragments- Conglomerate, sandstone, and shale. 72. Virginia resources include limestone, coal, and gravel. 73. Renewable resources can be replaced ...
137 Amazing Facts of Earth Science
... 69. Sedimentary subclasses include clastic, organic, and chemical. 70. Limestone is formed both chemically and organically. 71. Clastic rocks are made of fragments- Conglomerate, sandstone, and shale. 72. Virginia resources include limestone, coal, and gravel. 73. Renewable resources can be replaced ...
... 69. Sedimentary subclasses include clastic, organic, and chemical. 70. Limestone is formed both chemically and organically. 71. Clastic rocks are made of fragments- Conglomerate, sandstone, and shale. 72. Virginia resources include limestone, coal, and gravel. 73. Renewable resources can be replaced ...
Lithosphere #2
... There are a number of categories of how to measure the impact of an earthquake. We use the Richter scale to measure of the magnitude of an earthquake. The strongest ones are in the ranges of ...
... There are a number of categories of how to measure the impact of an earthquake. We use the Richter scale to measure of the magnitude of an earthquake. The strongest ones are in the ranges of ...
Plate Tectonics Bingo - Western Reserve Public Media
... something down (as by particles washing over it) Eruption: When ash and lava flows and gases are ejected from deep within the earth Fault: An area of stress in the earth where broken rocks slide past each other, causing a crack in the Earth’s surface Igneous rock: Rock that is formed when magma cool ...
... something down (as by particles washing over it) Eruption: When ash and lava flows and gases are ejected from deep within the earth Fault: An area of stress in the earth where broken rocks slide past each other, causing a crack in the Earth’s surface Igneous rock: Rock that is formed when magma cool ...
Earth and Space Science Review
... a. Seismographs are the instruments that record the seismic waves. b. Richter Scale – measures the energy release of a moderate earthquake (magnitude 3.07.0) c. Moment magnitude - measures the energy release of large scale earthquakes d. Mercalli Intensity scale – measures the damage done by an ear ...
... a. Seismographs are the instruments that record the seismic waves. b. Richter Scale – measures the energy release of a moderate earthquake (magnitude 3.07.0) c. Moment magnitude - measures the energy release of large scale earthquakes d. Mercalli Intensity scale – measures the damage done by an ear ...
2nd Nine Weeks Review Science
... • A. why the sea is saltier in some places other than others. • B. how fossils are formed • C. the way the planets move around the stars • D. how and why continents move ...
... • A. why the sea is saltier in some places other than others. • B. how fossils are formed • C. the way the planets move around the stars • D. how and why continents move ...
Earth Science 2007-2008 Final Study Guide
... Chapter 10 Absolute age of rocks is found by radiometric dating The time it takes for 1/2 of the original material in an isotope to decay is called a half life Index Fossils are widely distributed and easily recognized. They lived a short period of time and are useful for geolgists. The olde ...
... Chapter 10 Absolute age of rocks is found by radiometric dating The time it takes for 1/2 of the original material in an isotope to decay is called a half life Index Fossils are widely distributed and easily recognized. They lived a short period of time and are useful for geolgists. The olde ...
Earth: An Ever changing planet
... • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Earth’s history) • Phanerozoic: Dinosaurs to now • 540 MYA – present day (11% of Earth’s history) ...
... • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Earth’s history) • Phanerozoic: Dinosaurs to now • 540 MYA – present day (11% of Earth’s history) ...
7th Grade Science Midterm Review
... The composition of sedimentary rock show the source of the sediment that makes up the rock The texture of the sedimentary rock shows the environment in which the sediment was ...
... The composition of sedimentary rock show the source of the sediment that makes up the rock The texture of the sedimentary rock shows the environment in which the sediment was ...
Inside the Earth Review Handout Name Date ______ Part 1. A w
... 4. What are 2 ways scientists determine the composition of the layers of the earth? ...
... 4. What are 2 ways scientists determine the composition of the layers of the earth? ...
Earth`s Interior
... minerals (also magnesium, silicon) 3. surrounded by crust of relatively light silicon-rich minerals. (You are here.) Earth is differentiated. ...
... minerals (also magnesium, silicon) 3. surrounded by crust of relatively light silicon-rich minerals. (You are here.) Earth is differentiated. ...
Understanding Geological Time
... Understanding Geological Time Directions: Answer the following questions as you navigate through Understanding Geologic Time. http://www.ucmp.berkeley.edu/education/explorations/tours/geotime/index.html 1. How is relative age different from the actual date of an event? Why is the “absolute date” of ...
... Understanding Geological Time Directions: Answer the following questions as you navigate through Understanding Geologic Time. http://www.ucmp.berkeley.edu/education/explorations/tours/geotime/index.html 1. How is relative age different from the actual date of an event? Why is the “absolute date” of ...
Powerpoint Presentation Physical Geology, 10th ed.
... – Most geologic processes occur gradually over millions of years – Changes typically imperceptible over the span of a human lifetime – Current best estimate for age of Earth is ~4.56 billion years ...
... – Most geologic processes occur gradually over millions of years – Changes typically imperceptible over the span of a human lifetime – Current best estimate for age of Earth is ~4.56 billion years ...
PowerPoint Presentation - The Interior of the Earth
... 1. Surface waves roll along the surface of the earth as swells 2. Waves that penetrate the interior of the earth: Primary (P-waves) move quickly, can penetrate both liquids and solids Secondary (S-waves) can penetrate solids, not liquids ...
... 1. Surface waves roll along the surface of the earth as swells 2. Waves that penetrate the interior of the earth: Primary (P-waves) move quickly, can penetrate both liquids and solids Secondary (S-waves) can penetrate solids, not liquids ...
Slide 1 - My Teacher Pages
... • Theory that all of the continents were once one large landmass (Pangaea) that has broken up and drifted apart. – Alfred Wegener ...
... • Theory that all of the continents were once one large landmass (Pangaea) that has broken up and drifted apart. – Alfred Wegener ...
Chapter 4 Babbey
... Convection Currents • A convection current is the flow that transfers heat within a fluid. • These change when temperature, density, or gravity act on the fluid. ...
... Convection Currents • A convection current is the flow that transfers heat within a fluid. • These change when temperature, density, or gravity act on the fluid. ...
Unit 5 – Planet Earth
... 4.0 Fossils – Evidence of Earth’s Changes over Time Fossils are living or non-living things preserved in stone Fossil evidence is interpreted and conclusions are based mostly on inferences because the fossil remains are incomplete Geological Time divides the history of the Earth into four peri ...
... 4.0 Fossils – Evidence of Earth’s Changes over Time Fossils are living or non-living things preserved in stone Fossil evidence is interpreted and conclusions are based mostly on inferences because the fossil remains are incomplete Geological Time divides the history of the Earth into four peri ...
section - SCHOOLinSITES
... • A ________ is a break in the Earth’s crust along which Blocks of the crust __________ relative to each other ...
... • A ________ is a break in the Earth’s crust along which Blocks of the crust __________ relative to each other ...
Layers of the Earth
... Earth, the largest rocky planet, was formed about 4.5 billion years ago. The Earth's interior is divided into four different layers. It is cool on the surface but very hot deep inside the planet. The center, or core, is as hot as 9000 degrees F which is hotter than the surface of the sun. ...
... Earth, the largest rocky planet, was formed about 4.5 billion years ago. The Earth's interior is divided into four different layers. It is cool on the surface but very hot deep inside the planet. The center, or core, is as hot as 9000 degrees F which is hotter than the surface of the sun. ...
PART 1: DETERMINING RELATIVE AGE OF ROCKS Think about
... • the ratio of U-235 to Pb-207 in the pegmatite is 1:1 (50% uranium, 50% lead) • the ratio of U-235 to Pb-207 in the granite is 1:3. • the ratio of U-235 to Pb-207 in the the volcanic ash in the siltstone has a ratio of U-235:Pb-207 of 47:3 (94% of the original U-235 remains) • the ratio in the basa ...
... • the ratio of U-235 to Pb-207 in the pegmatite is 1:1 (50% uranium, 50% lead) • the ratio of U-235 to Pb-207 in the granite is 1:3. • the ratio of U-235 to Pb-207 in the the volcanic ash in the siltstone has a ratio of U-235:Pb-207 of 47:3 (94% of the original U-235 remains) • the ratio in the basa ...
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.