PPT-7.3 Earth and Life

Formation of the Solar System Formation of the Solar System Scientists claim that 45 billion years ago there was just a featureless cloud of gasmostly 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. 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).. 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.. 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. 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 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. 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 . STRIKES. . . Question 1:. . Yue sees a quarter moon in the night sky. Which of the following statements about a quarter moon is true?. a. A quarter moon happens at least once a week.. b. A quarter moon happens only once a month.. 1. Artist’s Conception of Earth 3 billion years ago. 2. 3. I. . . Concept 25.1: The Origin of Life. A. Introduction. 1. Conditions at this time on Earth were such that life could have arisen by . We will delve into the intricacies of taxes on life insurance in the UK, exploring the rules and regulations that govern this important aspect of financial planning.