PPT-Formation of Earth and Moon

Geochronometry Isotope tracing History of primordial Pb Meteorite samples Chondrite a primitive undifferentiated meteorite CI refers to a particular class of carbonaceous chondrite. The BIG Idea. Students will understand that the appearance of the moon changes in a predictable cycle as it orbits Earth and as Earth rotates on its axis.. Objective 1:. Explain patterns of changes in the appearance of the moon as it orbits Earth. . By : Zora Reyes. Size. The . Moon . is 3475 km. The . Earth . 3959 km . The . Sun . is 1392000 km. The . Sun . is really , small if you look at all of the others stars . Surface. The . Moon . has craters the . Theories. Objectives. SWBAT describe theories on the origin of the moon.. SWBAT evaluate the theories based . on evidence . that has been gathered on the moon’s origin.. Earth and Moon (a Planetary Romance). 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. Part 1 . Origin of the elements . Part 2. Geochronometry. : Age of Earth . Formation of Earth and Moon. Differentiation of core and mantle. . Isotope tracing: sequence of events. . What have we learned so far?. Section 22C. The sun’s motions. Apparent motion. The sun’s motion across the sky as we see it. Caused by the earth’s rotation. Ecliptic – the line marking the apparent path of the sun against the background of the stars as the sun moves around the earth.. Section 1: Earth in Space. Pg. 514 . Basics. The study of the moon, stars and other objects in space is . Astronomy. .. The earth moves in 2 ways. Rotation. Revolution. Rotation. The spinning of the earth on it’s axis. st. quarter moon, full moon, last quarter moon). Hint: Today is a new moon (Weds, Feb. 18. th. and there are only 28 days in Feb. ). Hint: We have a new moon every 28 days. Pull out Bill Nye worksheet . Earth, Moon, and Sun Gravity and Motion Isaac Newton was the first scientist to explain what keeps the Earth and Moon in orbit Force – a push or a pull There is a force acting between the Earth and the moon that keeps them in orbit Formation of the Moon Before visit to the Observatory Overview Introduction to the Formation of the Moon Video about the Evolution of the Moon Classroom demonstrations on distances to the Moon Classroom activity – Craters on the Moon The Moon Topographic map from Lunar Reconnaissance Orbiter Basic data Radius 0.27 of Earth’s Mass 0.01 of Earth’s Orbits Earth with period 27.3 days Revolves on its axis with this period: tidally locked so one face always points towards the Earth A. Round and flat. B. Roughly spherical. C. Flat and square. Next. Which is the biggest?. A. The Sun. B. The Moon. C. The Earth. Next. How long does it take for the Earth to travel once around the sun?. Michelle Kirchoff. Southwest Research Institute. Center for Lunar Origin and Evolution. Southwest Research Institute in Boulder. http://. www.boulder.swri.edu. /. Center for Lunar Origin and Evolution (CLOE). Stars. On a clear night, how many stars can you see?. 2,000 – 3,000. Why is that?. Light Pollution. Ancient cultures grouped the stars by location and named them after heroes, animals, monsters…..