Asteroids Comets Meteors PDF

Welcome to the world of science Modules 2nd Grading Module 1: Earthquakes & Faults Module 2: Earthquakes and Epicenter Part 1 Part 2 Module 3: Earthquakes Waves Module 4: Understanding Typhoons Module 5: Tracking of A Typhoon Module 6: Asteroids, Comets & Meteors asteroi...

Welcome to the world of science Modules 2nd Grading Module 1: Earthquakes & Faults Module 2: Earthquakes and Epicenter Part 1 Part 2 Module 3: Earthquakes Waves Module 4: Understanding Typhoons Module 5: Tracking of A Typhoon Module 6: Asteroids, Comets & Meteors asteroids, comets & Meteors Compare and contrast comets, meteors, and asteroids Identify the characteristics of a comet, a meteor & an asteroid See their value in providing scientists with information about the origin of the solar system  4 UNSCRAMBLE ME! SDOITAESR asteroids Emidotoer meteoroid REMETSO meteors Itemetioer meteorite STCMOE comets asteroids, comets & meteors  7 Characteristics of an asteroid Asteroids ➜ refer to small bodies which are usually rocks and/or metallic ➜ similar composition with the layers of terrestrial planets ➜ size is greater than 100 m in diameter  8 Characteristics of an asteroid Asteroids ➜ found within and between the obits of Mars and Jupiter (asteroid belt) ➜ occupied by numerous asteroids, contain enough material to form another rocky planet https://socratic.org/questions/what-lies-between-the-orbit s-of-mars-and-jupiter  9 Characteristics of an asteroid Asteroids ➜ come in various shapes: elongated, spherical, or irregular ➜ known to be debris of bodies within the young’s sun’s nebula Nebula ➜ cloud of gas & dust in outer space https://spaceplace.nasa.gov/nebula/en/  10 Characteristics of an asteroid Asteroids ➜ come in various shapes: elongated, spherical, or irregular ➜ known to be debris of bodies within the young’s sun’s nebula  11 Characteristics of an asteroid Asteroids (Trojans) ➜ group of asteroids ➜ share an orbit with a large planet or moon ➜ Jupiter Trojans- they share the same orbit as planet Jupiter ➜ also found to share https://osr.org/blog/ast ronomy/jupiters-trojan-asteroi ds-orbit-in-space/ orbit with Mars  12 Near Earth Asteroids (NEAs) ➜ most watched/ possibility of colliding with earth ➜ 7075 NEAs found, with 500 to 1000 of them at least 1km in diameter https://scit echdai ly.com/q-a-and-video-ani mations-from-nasa-on-asteroi d-2012-da14-and-its-near-earth-approach/  13 ➜ generate tsunami “ ➜ ignite trees and vegetation & cause forest fires ➜ can shake the earth & create a large crater ➜ destroy anything in its path  14 Asteroids as Source of Metals ➜ rick in iron, nickel and other metals ➜ traces of gold, along with rarer minerals such as kamacite, schreibersite, taenite, and troilite. Now we can add edscottite to that list. https://scit echdai ly.com/q-a-and-video-ani mations-from-nasa-on-asteroi d-2012-da14-and-its-near-earth-approach/ Describe me!  What did you observe about the object as it moves towards the sun?  something is moving out from its body looks like it shines as it moves away it develops two tails as it moves far from the point of origin Comets  19 Comet ➜ a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun. https://osr.org/blog/ast ronomy/jupiters-trojan-asteroi ds-orbit-in-space/  20 Comet ➜ Origin: Kuiper Belt and Oort Cloud ➜ Shape: irregular/varied ➜ Chemical composition: ➜ dust, rock, metals, ice, frozen gases, ammonia, methane, carbon dioxide, and other organic compounds ➜ https://astronomynow.com/2015/ 02/14/rosetta-approaches-comet-67p-for-a-clos er-look/  21 Comet ➜ Origin: Kuiper Belt and Oort Cloud ➜ Shape: irregular/varied ➜ Chemical composition: ➜ dust, rock, metals, ice, frozen gases, ammonia, methane, carbon dioxide, and other organic compounds https://spaceplace.nasa.gov/nebula/en/ ➜  22 Comet ➜ Orbit: highly elliptical ➜ Orbital Period: 75 to 100 000 ++ ➜ Importance to research: provides clues on how liquid water was formed on earth https://osr.org/blog/ast ronomy/jupiters-trojan-asteroi ds-orbit-in-space/  23 Label me! coma 1. _____________ Gas tail 3. _____________ nucleus Dust tail 4. _____________ 2. _____________  24 Label me! coma 1. _____________ Gas tail 3. _____________ nucleus Dust tail 4. _____________ 2. _____________  25 Inside the comet Coma - the visible, cloud- Lorem Ipsum like atmosphere Nucleus central mass of ice, Lorem Ipsum Lorem Ipsum gas, and dust Lorem Ipsum Lorem Ipsum Lorem Ipsum Lorem Ipsum  26 Inside the comet Gas Tail the tail that always points away from the Sun due to the fact that it is most affected by the solar Lorem Ipsum wind. Dust Tail which consists of a long, streaming-appearing tail of dust Lorem Ipsum Lorem Ipsum particles reflecting sunlight; Lorem Ipsum Lorem Ipsum Lorem Ipsum Lorem Ipsum  27 Halley’s comet Halley’s Comet appear once every 75 to 76 years short period comet/ periodic comet our office non-periodic- more than 200 years or even thousands or millions of years https://www.pilotonline.com /news/columns/article_50f10436-e351-5ae8-9025-e25453268c32.html  28 Halley’s comet Halley’s Comet appear once every 75 to 76 years short period comet/ periodic comet our office non-periodic- more than 200 years or even thousands or millions of years https://www.pilotonline.com /news/columns/article_50f10436-e351-5ae8-9025-e25453268c32.html  29 Know Me! meteoroid meteor meteorite  30 Know Me! meteoroids  32 Meteoroids Origin: most are from the Asteroid belt Shape: varied/ irregular Chemical Composition: fragments of asteroids & comets; iron stone, stony iron & chondrites Orbit: no orbit as is it is inside the Earth’s atmosphere Importance to research: provide information on star formation and evolution https://www.slideshare.net/mhbunda /comets-asteroids-meteors-41629743  33 Meteoroids Meteoroid- in space- no visible path or trail Meteor- the visible trail or path of the meteoroid as it enters the Earth’s atmosphere https://socratic.org/questions/how-are-meteoroids-meteors-and-meteorite-related  34 Meteoroids Meteor- the visible tail or path of the meteoroid as it enters the Earth’s atmosphere May appear to glow brighten than the planets “fireballs) -”shooting stars” -”falling star” - “bulalakaw” Meteorite- hits the earth and survive the impact  35 Meteoroids Meteorite- hits the earth and survive the impact Crater- evidence of impact of a meteorite that hit the earth https://socratic.org/questions/how-are-meteoroids-meteors-and-meteorite-related  36 Composition of meteorites most common less common classified as ➜ stony in nature and ➜ iron-nickel type stony iron consist mainly of and have a higher silicates with some density ➜consists of stone iron and nickel material, iron and nickel  37 Whoa! That’s a big number, aren’t you proud? Thank you for Listening! Thank You for Listening! 38 I hope that you will still join me in my next Science video discussion. 39