PPT-CHAPTER 25 THE HISTORY OF LIFE ON EARTH

1 Artists Conception of Earth 3 billion years ago 2 3 I Concept 251 The Origin of Life A Introduction 1 Conditions at this time on Earth were such that life could have arisen by . Formation of the Solar System. Formation of the Solar System. Scientists claim that 4.5 billion years ago there was just a featureless cloud of . gas..mostly. hydrogen and some helium with a little carbon and iron. Chemical conditions of the early Earth. . A model for the first cells. First life. Life changes the planet: oxygenating Earth’s oceans and atmosphere. Eukaryotic cells descended from prokaryotic cells. 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. . Key terms:. Solstice: day when the sun appears farthest North or South of the equator. Northern hemisphere receives the most sunlight of the year around June 21 on the summer solstice.. Phase: shape of the moon you see from Earth.. The . Sun. Is HOT!!!. The sun is an . average . star . The heat and light are the result of . Nuclear Reactions . constantly taking place in the sun.. It is in the . center. of our solar system. . Comparison . I. To Reveal God to Mankind.. God the Father sent Jesus (John 12:44-46).. God has spoken to us through His Son (Heb. 1:1-3).. Jesus is the way to God the Father (John 14:1-7).. Learning Target:. What is necessary for life to be present in our solar system?. Science Starter:. Pg. 2 Life on Earth Workbook…Answer question 1. Supplies: Life on Earth Workbook. 1. Heartbeat. 2. Return Papers. 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. Oblate Spheroid. Bulges in. the middle. Earth’s Shape. 1. Right distance from the Sun. 2. Right amount of water. 3. Right amount of atmosphere. Why Does Earth Have Life?. The . rotation. of the Earth lasts for . Lecture 3. Development of. Geological Concepts, Part I. Major Concepts. In the 17. th. and 18. th. centuries (Age of Reason), application of the scientific method of observation and interpretation began with the purpose of understanding earth processes in the context of the biblical account, but wound up challenging and discrediting that explanation. . 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 . How does the atmosphere support life?. The atmosphere allows us to breathe. Many different types of organisms need oxygen to perform life processes. Plants require carbon dioxide to undergo photosynthesis. . What can you see in the night Sky?. Moon- the earth’s only natural satellite. Satellite- is a body that orbits a planet. Planet- an object that orbits the sun. 5 are visible from earth without telescope- mercury, Venus, mars, Jupiter, and Saturn. Erosion and Deposition. Vincent . Eblacas. Untalan. Middle School. SY 2017 to 2018. Earth Science Chapter 8 . Erosion and Deposition. What are the 3 major factors that changes the Earth’s Surface? (15 points).