troChapter 1: Charting the Heavens (Astronomy Today) SUMMARY The universe is the totality of all space‚ time‚ matter‚ and energy. Astronomy is the study of the universe. A widely used unit of distance in astronomy is the light year‚ the distance traveled by a beam of light in one year. Early observers grouped the thousands of stars visible to the naked eye into patterns called constellations. These patterns have no physical significance‚ although they are a very useful means of labeling regions
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Chapter 14 Section 2 Notes: The Sun The sun produces energy through nuclear fusion. In the process of nuclear fusion‚ two atomic nuclei combine‚ forming a larger‚ more massive nucleus and releasing energy. Within the sun‚ hydrogen atoms join together to form helium. Such conditions exist in the sun’s core‚ or central region. The sun’s interior consists of the core‚ the radiation zone‚ and the convection zone. The sun’s energy is produced in its central core. The radiation zone is a region
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all have seen the movies where the Earth is getting destroyed by natural disasters. An asteroid the size of Texas is headed straight for us and we only have 18 days to stop it. We know that asteroids break apart in the Earth’s atmosphere‚ that scientist presume that approximately 65 million years ago a meteor struck Earth causing the death of the dinosaurs and that most asteroids are located in the Asteroid Belt between Mars and Jupiter. What I didn’t know and what I have learned is that there are
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City through Finland. NASA discovers that a rogue comet the size of Texas passed through the asteroid belt and pushed forward a large amount of space debris. The core of the comet‚ now considered an asteroid‚ will collide with Earth in 18 days‚ creating another extinction event. NASA scientists‚ led by Dan Truman‚ plan to trigger a nuclear detonation 800 ft inside the asteroid that will split the asteroid in two‚ driving the pieces apart so both will fly safely past the Earth. NASA contacts Harry
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Chapter 1 1.1 Earth Science & the Earth System -Earth science is the study of Earth and the processes that shape it -The earth system is composed of four principal components: atmosphere (air‚ weather)‚ hydrosphere (water‚ ice)‚ biosphere (plants‚ animals)‚ and geosphere (land‚ rocks). - Earth science can be broadly defined as the investigation of interactions among the four parts of the earth system. - The second largest earthquake ever recorded buckled the seafloor west of Sumatra‚ Indonesia
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The “planet” Pluto was discovered by scientist in 1930. Even then‚ there was controversy over whether this little ball of ice should be considered a planet. It was decided it should‚ mainly because since the gravity of the eighth planet‚ Neptune‚ was found because it was tugging on the seventh planet‚ Uranus‚ and then Pluto was found when its gravity tugged on the orbit of Neptune. Pluto was just a continuation in the time-tested practice of discovering the existence of planets from the behavior
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approaches to save the world from the demise of a ginormous asteroid who is quickly coming closer to Earth and when it collides it will destroy everything in its path. We are drawn in from the very beginning because Harry’s (the main character) daughter Grace is in love with one of Harry’s workers‚ A.J. Frost. When disaster strikes and a huge comet passes through the asteroid belt to push forward space debris and larger than life asteroid‚ the size of Texas‚ NASA has eighteen days to find and train
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Sun= cantaloupe Earth = ball pen Jupiter= finger tip Pluto= dust * Today we know Solar system has: 1 star‚ 8 planets‚ 5 dwarf planets‚ 139+ moons‚ countless small solar system bodies * A major lesson from all this is that the solar system is almost entirely made of nearly empty space * All planets orbit the sun in the same direction (counter-clockwise) * Most rotate in the same direction * Venus rotates backward * Uranus rotates on its side (equator perpendicular to equator)
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metals such as gold‚ platinum‚ silver‚ and others on Mars. Thus‚ shipment from Mars to Earth would be much easier than from Earth to Mars. The proximity of the asteroid belt to Mars is much more promising. For example‚ Dactyl‚ the moon orbiting the asteroid Ida contains more iron that the human on earth has used from entire existence. These asteroids can be mined near Mars and shipped for low cost to planet. Thus Mars promises economic potential if colonized. From the above mentioned points‚ aset up of
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Governor Andres Pascual College 1045 M. Naval St.‚ San Jose‚ Navotas City 4TH QUARTERLY EXAMINATION in SCIENCE GRADE 8 S.Y. 2014 2015 Name: Date: _ Score: _______ Grade Level & Section: _ Teacher: _ Rating: ______ INSTRUCTION: On the space given before the number‚ write the letter of your choice. Read
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