PPT-EARTH’S HISTORY

CHAPTER 13 Copyright 2014 John Wiley amp Sons Inc All rights reserved 131132 Earths history has been unveiled by founding scientists applying critical thinking Key evidence for past life is preserved in . Things to Know. What do the layers of the Earth look like?. Check the following terms and definitions to see if they are in your journal.. Layers of the Earth. Inner core. – the solid inner core of the Earth. Pressure makes the iron found there a solid mass. . Phases are different views of the Moon’s sunlit half. The Lunar phases are the lit & unlit portions of the moon you see from Earth.. Light from the sun reflected by the Moon’s surface. The Moon’s position in its monthly orbit determines how it appears from Earth.. Do you REALLY believe?. ?. ?. . All the planets of the solar system came out of the Sun!!. Humans have been able to peep into the mantle!!. All the Interior of the Earth is in molten state!!. The Earth has only one North Pole!!. Standard. . S6E5. Students will investigate the scientific view of how the earth’s surface is formed. . a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition. . The Earth is divided into three layers based on the compounds that makeup each layer. They are:. 1. Crust. 2. Mantle. 3. Core. The Crust. The Crust is the :. 1. outer most layer of the Earth.. 2. It is the thinnest layer.. Change . . Fig. 2, p. 312. Chapter Objectives. Weather, climate & climate basics . Climate change through geologic time. Ice ages. Present day climate change. Table 9.1. I. Weather & Climate. By Jason Janczak. SIZE OF THE EARTH, MOON, AND SUN. The Earth’s radius is 3959 miles. The Moon’s radius is 1079 miles . The Sun’s radius is 432,474 miles. Fun facts: The Earth is about 4 times the size of the . 1. st. period. Solar Eclipse. Moon comes in between the Earth and Sun; annually (1x a year)- blocks sun. Can see the top layer of the sun (corona). Penumbra + Umbra (2 shadows). Most eclipses are partial eclipses. Presented by Kesler Science. What are the main characteristics of the Earth’s layers?. How can the Earth’s layers be illustrated?. Essential Questions:. Earth's Layers. Earth’s Crust. The outer layer of the Earth. The Sun. What physical features do you notice?. How does the Sun compare to the Earth and Moon?. What does the Sun provide for the Earth?. Physical Characteristics of the Sun. Sunspots. Solar Flare. The Layers of the Earth. The Earth is an oblate spheroid – the . Solid Earth. . . It is composed of a number of . different layers. as determined by deep drilling and . seismic. evidence.. The Four Basic Layers. Geological Time Scale. AIM: . How have stratigraphy and radiometric dating been used to construct the geological time scale?. The History of Earth. Earth’s history has been studied through 2 methods:. How old is the earth?. How old is our earth?. Aristotle thought the Earth had existed eternally.. Early Romans believed its formation was relatively recent due to no records before the Trojan War.. 1640 – Ussher calculated Earth was created in . Conditions on early Earth made the Origin of Life possible.. Current theory about how life on Earth began.. Earth formed about 4.6 billion years ago.. Earth was too hot and still being bombarded by meteors, any water evaporated..