tral or burrow of an organism was left behind. 8-2.3 Explain how Earth’s history has been influenced by catastrophes (including impact of an asteroid or comet‚ climate changes‚ and volcanic activity) that have affected the conditions on Earth and the diversity of its life-forms. Earliest life forms
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begins to increase with altitude‚ and this trend continues in the thermosphere. Because the atmosphere in the thermosphere is so thin‚ a thermometer cannot be used to measure the temperature accurately and special instruments are needed. The Earth interior is divided into 4 layers. The properties of the Earth’s interior have been inferred primarily from earthquake waves. Distinct characteristics are found within each layer such as density‚ temperature‚ and pressure. OBJECTIVE: In this
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Young Discoverer Series UNIVERSE NICKNAMES OF PLANETS: Mercury – Speedy Messenger. Venus – Morning or Evening Star. Earth – The Blue Planet. Mars – The Red Planet. Jupiter – Jove or the Galilean System. Saturn – The Ringed Planet. Uranus – Father Sky. Neptune – The Windy Planet. Pluto – The Ice Planet. DEFINITIONS: STAR: A huge body made of hot luminous gas that is held together by its own gravity. Compared to other stars‚ our Sun is a star of average size and energy. PLANET: A large
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spots‚ less than one kilometer in others. Underneath it is the mantle‚ a layer of rock some 2700 kilometers thick that accounts for the bulk of the Earth. The crust is primarily made of granite and basalt while the mantle beneath is made of peridotite. More about all that below. How We Know the Earth Has a Crust Just a century ago‚ we didn’t know the Earth has a crust. Until the 1900s all we knew was that our planet wobbles in relation to the sky as if it had a large‚ dense core. Astronomical observations
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Mother Earth By:Reynald Bautista Villagomeza Mother Earth is healthy‚ And has beauty and is wealthy; But with Global Warming on the way‚ It will take Mother Earth’s beauty away. It will become hot‚ Like a steaming pot; Leaves will become brown‚ Then everybody will frown. We need coolness‚ not hotness‚ But also happiness; Please Mother Earth don’t come to an end‚ Because we’ll be your friend. …To help you become healthy and green again!!! DDB: 1.7 million Pinoys hooked on drugs MANILA‚
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Earth’s Rotation Earth ’s rotation is the rotation of the solid Earth around its own axis. The Earth rotates from the west towards the east. As viewed from the North Star or polestar Polaris‚ the Earth turns counter-clockwise. The North Pole‚ also known as the Geographic North Pole or Terrestrial North Pole‚ is the point in the Northern Hemisphere where the Earth ’s axis of rotation meets its surface. This point is distinct from the Earth ’s North Magnetic Pole. The South Pole is the other point
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Earth hour Title: Earth hour- Sixty minutes of darkness to highlight climate change. Publication:24 hrs. Toronto Date: Friday‚ March 22‚ 2013. Earth hour Earth Hour is a worldwide event organized by the World Wide Fund for Nature(WWF) It is held towards the end of March annually‚ encouraging households and businesses to turn off their non-essential lights for one hour. In order to raise awareness about the need to take action on climate change. Earth hour The event‚ conceived by WWF and
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Earth Summit International meetings aiming at drawing up measures for the environmental protection of the world. The first summit took place in Rio de Janeiro‚ Brazil‚ in June 1992. Treaties were made to combat global warming and protect biodiversity (the latter was not signed by the USA). The second Earth Summit was held in New York in June 1997 to review progress. The meeting agreed to work towards a global forest convention with the aim of halting the destruction of tropical and old-growth forests
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Material: Realms of the Earth Astro-physicists and scientists believe that there could be quite a few planets in the Universe similar to our planet Earth. There is also a probable chance that some form of life prevails and sustains in one of such planet. However‚ so far as we presently know‚ the Earth is the only planet which supports life which makes it a very unique planet. It is therefore imperative (very important and necessary) for us to understand the spheres of the Earth as the spheres play a
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Life on Earth. 1. Analysis of the oldest sedimentary rocks provides evidence for the origin of life. * Identify the relationship between the conditions on early Earth and the origin of organic molecules. * Scientists estimate that the universe is 10-20 billion years old and arose as a big bang‚ which is still expanding the universe. * The early Earth was very different from the Earth today and no oxygen was present. This means that there was no ozone layer exposing the Earth’s surface
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