• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Skills Handbook
Skills Handbook

... produce. A ______________ economy is based on _________ ________________, the idea that private individuals or groups have the right to own property or businesses and make a profit with only limited government interference. Another term for an economic system organized in this way is _______________ ...
journey 05 - Auburn High School
journey 05 - Auburn High School

... The study of seismic waves allows scientists to “see” inside the earth. Scientists have discovered that seismic waves • refract • reflect • change velocity • and become absorbed by various parts of the Earth’s interior ...
SCI Ch4 Study Guide KEY
SCI Ch4 Study Guide KEY

... 11. True or false: The speed of plate movement could be compared to the growth of a fingernail. True 12. Two types of lithosphere are _______________ and __________________. Continental and oceanic 13. Matter and energy for plate motion are provided by ______________. Convection 14. What causes hot, ...
Earth`s Layers Sort
Earth`s Layers Sort

... has an inner portion and outer portion ...
CTS Earth Processes
CTS Earth Processes

... Earth is constantly changing, nothing is permanent. Organic (human) and inorganic influences that cause change Takes evidence to change ideas in science Earth processes are caused by two major sources of energy: radioactive decay and leftover heat from the earth’s formation Tectonics is an organizin ...
SLSN, 11-14-08,CTS Notes (Earth Processes)
SLSN, 11-14-08,CTS Notes (Earth Processes)

... e. Elements and minerals cycle through the land, oceans, and atmosphere f. Landforms, climate, and resources impact where people live. People also impact the earth. g. The history of the earth is revealed in its layers. II. a. Many elementary school textbooks are filled with information that is not ...
study guide - Hull Lessons
study guide - Hull Lessons

... Beneath the Earth’s crust lies the mantle, which is partly solid and partly semi-solid. During the 1500’s, geographers who made the first accurate maps noticed that the continents seemed to fit together like pieces of a jigsaw puzzle. The theory that says the earth’s surface is made up of about 20 m ...
Questions Due Thursday
Questions Due Thursday

...  Away from sun = Days are shorter, weather is colder  Tilt causes seasonal opposites on the Earth in the N. and S. Hemi. ...
F M2502 PAPER – II EARTH SCIENCES
F M2502 PAPER – II EARTH SCIENCES

... Note : Attempt all the questions. Each question carries two (2) marks. ...
Changing Earth/Earth System
Changing Earth/Earth System

... a.8.11 Use models to analyze the size and shape of Earth, its surface and its interior (e.g., globes, topographic maps, satellite images). a.8.12 Explain that some processes involved in the rock cycle are directly related to the thermal energy and forces in the mantle that drive plate motions. a.8.1 ...
Unit 10: Layers of the Earth
Unit 10: Layers of the Earth

... Element: A pure substance that cannot be separated into simpler substances by physical or chemical means Model: A limited representation of an object used to help us understand its structure or how it works Content Vocabulary Asthenosphere: The solid layer with plasticity in the upper mantle that is ...
Earth Science Lecture - Quiz 1
Earth Science Lecture - Quiz 1

... b. using mathematics to confuse students c. defending personal ideas d. making observations and repeatedly testing conclusions 13. As of 2010, the current earth human population is approximately: a. 6.5 million c. 10 billion d. 5.6 billion b. 6.5 billion 14. An open system is defined as: a. An excha ...
Introduction to geology
Introduction to geology

... These processes leads to:Melting of the internal components (Rocks, minerals) of the earth and forming the internal structure of the earth (Crust, Mantle, outer core, and inner core). ...
Unit 1
Unit 1

...  Answer the following questions in paragraph form:  Paragraph 1 – Describe, in detail, how plate tectonics has caused major changes in the earth’s surface. Give examples  Paragraph 2 – Explain how the changes mentioned in paragraph one are dangerous to humans. Be specific  Paragraph 3 – What thi ...
The age of the Solar system
The age of the Solar system

... 2. Are the compositions and densities of the Earth and those of the asteroids and meteorites similar? - Yes, the meteorites represent the same kind of raw material that accreted to form the Earth 3. How did the Earth form? - By accretion (due to gravity) of dust particles into planetesimals, these p ...
Chapter 2 Presentation
Chapter 2 Presentation

... rock are broken down into smaller pieces. ...
Ch. 2 Earth`s Water Lesson ppt
Ch. 2 Earth`s Water Lesson ppt

... • Almost all of the hydrosphere is saltwater found in oceans, seas, and some lakes. • The amount of water on Earth never changes, but it is constantly moving through the processes of evaporation, condensation, and precipitation. • Evaporation is when the sun’s energy causes water to change into vapo ...
If you think about a volcano, you know Earth must be hot inside. The
If you think about a volcano, you know Earth must be hot inside. The

... Earth was hot when it formed. A lot of Earth’s heat is leftover from when our planet formed, four-and-a-half billion years ago. ...
A Brief Look at Earth`s History
A Brief Look at Earth`s History

... Inland seas in North America drained away. Asteroid impact likely caused extinction of dinosaurs. Rocky and Sierra Nevada Mountains formed. Climate was much warmer than today. Shallow seas covered much of North America. Atlantic Ocean formed. North America and Africa moved apart. Pangaea began to br ...
S05_4359_L02
S05_4359_L02

... Lecture 2. Earth's Interior & Plate Tectonics, continued Plate tectonics is driven by gravity (slab pull & mantle convection) & closely related to Earth’s interior temperature variations. Heating most materials decreases their rigidity and strength. Temperature (T) is a measure of a material’s kinet ...
PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory
PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory

... #12. Mercury is unique among the terrestrial planets in having A) an iron core that takes up almost half its volume. B) extensive volcanic activity and crustal deformation over most of its history but no evidence of plate tectonics. C) one hemisphere with many craters and few volcanoes, the other he ...
Ch. 9 Study Sheet - Allen County Schools
Ch. 9 Study Sheet - Allen County Schools

... 17. Earth’s crust is divided into plates. Plates ALWAYS move. 18. Earthquake- (waves) shaking of Earth’s crust due to plate movement. 19. Fault- a break or crack in rock plates where Earth’s crust can move. 20. Plate tectonics- movement of Earth’s plates. 21. Focus- The point UNDER THE GROUND where ...
Introduction to Earth Science
Introduction to Earth Science

... of the equator (measured in degrees). • Longitude is the distance east or west of the prime meridian (also in degrees). ...
Understanding the Earth
Understanding the Earth

... pressure?_________________________ ________ ...
The Origin of Earth
The Origin of Earth

... 5. Most of the planets rotate in the same direction as the sun 6. Seven of the nine planets have moons. ...
< 1 ... 147 148 149 150 151 152 153 154 155 ... 175 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report