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Practice Questions 1) 2) 3) 4) 1. Which pie graph correctly shows the
Practice Questions 1) 2) 3) 4) 1. Which pie graph correctly shows the

... 2. Base your answer to the following question on the cross section below and on your knowledge of Earth science. The cross section shows the general movement of air within a portion of Earth’s atmosphere located between 30° N and 30° S latitude. Numbers 1 and 2 represent different locations in the a ...
1_ Earth_s History - St. Raymond High School for Boys
1_ Earth_s History - St. Raymond High School for Boys

... Extrusive: molten rock reaches the surface. Extrusive igneous rocks will be younger than the rock below it & older than the rock layer above it. Magma will cause contact metamorphism on rocks that are OLDER. Intrusive: molten rock that cools below the earth’s surface. 1. It may squeeze its way betwe ...
LAB # 14 STRUCTURE OF THE EARTH
LAB # 14 STRUCTURE OF THE EARTH

... d. What is the physical state of the inner core? ...
Chapter 2 – 2 Forces Shaping Earth
Chapter 2 – 2 Forces Shaping Earth

... 1) The core is a sphere of very hot metal at the center of the earth. 2) The mantle is a thick, hot, rocky layer surrounding the core. 3) The crust is the thin layer of rocks, and minerals that surround and float on the ...
Our Earth
Our Earth

ttu_gs0001_000468
ttu_gs0001_000468

The Earth`s Structure - Warren County Schools
The Earth`s Structure - Warren County Schools

... - Inner core – _________________________ metal - Outer core – _________________________ metal; surrounds the inner core ...
Rocks and minerals
Rocks and minerals

... surface where plants grow. Soil consists of a mix of organic material (decayed plants and animals) and broken bits of rocks and minerals. animal remains, fungi and even manure. It also contains lots of tiny creatures, such as earthworms. Earthworms turn the plant and animal material into nutrients. ...
Earth Science - Canajoharie Central Schools
Earth Science - Canajoharie Central Schools

... During the first semester, this course is an introduction into the world of physical geology. Students will be given the opportunity to explore the Earth processes that result in the formation of minerals, rocks, mountains, earthquakes, volcanoes, etc… and the role that Plate Tectonics plays in all ...
Chapter 2: Earth Systems: Processes and
Chapter 2: Earth Systems: Processes and

... o The populations of different species living within an area are organized into communities o Communities, along with their surrounding physical environment, comprise ecosystems (open systems maintained by the flow of energy and matter) o The niche of a species refers to its role or function within ...
Earth`s Interior - Union Beach School District
Earth`s Interior - Union Beach School District

... » An important part of geology is the study of how Earth’s materials, structures, processes and organisms have changed over time ...
File
File

... – Complex life forms became abundant ~544 million years ago – Reptiles became abundant ~230 million years ago – Dinosaurs became extinct (along with many other organisms) ~65 million years ago – Humans have been around for only ~ 3 million years ...
The Power of the Earth
The Power of the Earth

No Slide Title
No Slide Title

... Beginning of the Earth was extremely violent. Grew by planetesimal impact. Became very hot, heated to the melting point of iron. Innermost rocks began to become compressed, so more heat. Radiogenic heat was added due to radioactive fission. Earth underwent differentiation into layers. ...
Earth Science - Center Grove Schools
Earth Science - Center Grove Schools

... 4. Your scale is 1:20,000,000 (one to twenty million), or 1cm = 200km. The Earth has a radius of about 6371 km. Hence, your “Slice” will be 63.7cm ÷ 2 or 32cm, or one 20 millionth as large as the Earth. 5. Make a mark on the “crust” which is 32cm from the “Center of Earth” mark. See Figure Above. 6. ...
Interior of Earth Graphic Organizer
Interior of Earth Graphic Organizer

... Earth has a diameter of about 12,756 km (7,972 mi). The Earth's interior consists of rock and metal. It is made up of four main layers: 1) the inner core: a solid metal core made up of nickel and iron (2440 km diameter) 2) the outer core: a liquid molten core of nickel and iron 3) the mantle: dense ...
Movement of tectonic plates (N12)
Movement of tectonic plates (N12)

... Composition of the Earth; Forces that alter the Earth's surface; Rocks: their formation, characteristics, and uses; Soil, its changes and uses; Natural resources used by humankind; and Forces within the Earth (not in grade 4). ...
EARTH`S FORMATION AND STRUCTURE The earth formed
EARTH`S FORMATION AND STRUCTURE The earth formed

... gas that surrounded the sun. As the gas cooled, more solids formed. The dusty material accreted to the nebular midplane where it formed progressively larger clumps. Eventually, bodies of several kilometers in diameter formed; these are known as planetesimals. The largest planetesimals grew fastest, ...
Layers of the earth and convection currents
Layers of the earth and convection currents

... B  Rising material hits rigid lithosphere and cannot go up any further. C  The force of gravity is causing denser material to fall. D  Core heat causes temperature to rise, therefore decreasing the density of material ...
AGE080 Week 6 Study Sheet-KEY The study of the matter (stars, for
AGE080 Week 6 Study Sheet-KEY The study of the matter (stars, for

... energy release associated with that number is about 32 times as great as the previous number. 6. Earthquake damage depends more on ground acceleration than on earthquake magnitude. 7. Volcanoes occur where melted (molten) rock reaches the earth’s surface. They can occur in a number of plate tectonic ...
GEOMORPHOLOGY
GEOMORPHOLOGY

Earth - Chapter 8
Earth - Chapter 8

... 1/2 = 50% parent: 1 half-life has passed 1/2x1/2 = 1/4 = 25% parent: 2 half-lives have passed 1/2x1/2x1/2 = 1/8 = 12.5% parent: 3-half-lives have passed ...
Document
Document

... rocks that would be encountered by drilling a core into the earth at any point (A, B, or C) ...
click here
click here

... weather forecast when a meteorologist predicts rain is coming based on known principles or characteristics of a certain air mass. a) true b)false ...
Lecture - Ann Arbor Earth Science
Lecture - Ann Arbor Earth Science

... The original surface of the Earth probably looked much as the Moon’s surface does today. The Earth was probably composed of the same material from its surface all the way to its center. Objects colliding with Earth helped to cause Earth to grow hot enough that heavy elements such as iron and nickel ...
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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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