Ocean worlds the story of seas on earth pdf

The great barrier reef contains over 400 coral species, 1,500 fish species, 4,000 mollusc species and six of the worlds seven sea turtle species. These are, in descending order by area, the pacific, atlantic, indian, southern antarctic, and arctic oceans. Is there life in the deep ocean, and some exotic life in the methane lakes or seas. Feb 09, 2016 our ocean planet is a full unit of work covering all aspects of the ocean across key stage 2. The proliferation of greenhouse gases prevents heat from escaping our planets atmosphere, and all that energy has to go somewhereunfortunately, it goes straight into the oceans. For that reason, the earth is often said to have seven seas. Triton is the highest priority candidate ocean world to target in the near term. They may form just a sliver on the outside of the earth, but they are very important, not only in hosting life, including the fish and other animals on which many humans depend, but in terms of their role in the earth system, in.

Ocean currents govern the worlds weather and churn a kaleidoscope of life. Et, nasa will hold a news conference announcing new results about ocean worlds in our solar system, and more tantalizingly, the broader search for life beyond. The ocean is the largest solar energy collector on earth, according to noaa. The origins of the phrase seven seas can be traced to ancient times.

Seamount hydrothermal systems as analogies for ocean worlds. Despite making up more than 70% of the earth s surface, there is still much about the oceans that we do not know. There are five oceans, separated by the continents large areas of land, with the atlantic, pacific, and indian ocean linked in the south by the southern ocean. Faults and fractures in the subseafloor environment tell a different story than they do at. Each ocean has its own range of temperatures and flow of currents, but water constantly flows from one to another. But with the voyages of captain james cook, global attention turned to the pacific, and european and american dreams of scientific exploration, trade, and empire grew dramatically. Exploring and studying them is critical to protect these valuable resources for future generations. Triton is the highest priority candidate ocean world to target in the near. An ocean world, ocean planet, water world, aquaplanet or panthalassic planet is a type of terrestrial planet that contains a substantial amount of water either at its surface or subsurface. Dragonfly selected for nf step 2 fly a drone hundreds of km in steps to map and sample titans surface. Jun 05, 2017 the presence of the ocean touches every living thing no matter where it livesthe air we breathe, and the water we consume, are ultimately linked to the seas. Top 10 largest seas and oceans in the world earth and world. All the oceans and seas are in reality one continuous body of water.

Become an ocean explorer ks2 unit of work teaching resources. The story of seas on earth and other planets oxford, 2014, pp. Many people use the terms ocean and sea interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography the study of the earths surface. Shin kim, limits of atlantic ocean, international hydrographic. The term ocean world is also used sometimes for astronomical bodies with an ocean composed of a different fluid, such as lava the case of io, ammonia in a eutectic mixture with water, as is likely the. Solar neon is represented by the horizontal line at 20ne22ne12. Thousands of species can be found living on one reef. Ocean worlds the story of seas on earth and other planets by jan zalasiewicz author mark williams author. Lets set sail on a journey to earths major ocean currents. The oceans are, by far, the largest reservoir of water on earth over 96% of all.

Lesson 2 ocean mountains and valleys big ideas the ocean. Become an ocean explorer ks2 unit of work tes resources. Thats because while there is a lot of land here, there is far more water. Some geographers divide the pacific into the north pacific and the south pacific and the atlantic into the north atlantic and the south atlantic using the equator as a theoretical dividing line. It is time to embark on a global odyssey to discover the largest and least explored habitat on earth. As climate change, pollution, and overexploitation by humans puts. You must be wondering to know what are the 7 continents of the world. What can we learn about life by understanding the history of ocean. Carl sagan in 1966 intelligent life in the universe, shklovskii and sagan. Though planet earth technically has just one large, globespanning world ocean, humankind has divided it up into areas using a set of criteria, such as the continents. Pacific ocean64,196,000 square miles 166,266,877 square kilometers. Oceans make up most of the surface of our blue planet. They may form just a sliver on the outside of the earth, but they are very important, not only in hosting life, including the fish and other animals on which many humans depend, but in terms of their role in the earth system, in regulating climate, and.

Nasa teases ocean worlds on moons of jupiter, saturn pcmag. The earth has been described as the blue planet a blue dot in space. Ocean worlds lunar and planetary institute universities space. Sep 29, 2012 the worlds oceans 71% of the earths surface is covered by ocean water. The coral triangle a coralrich marine region in southeast asia that encompasses the waters between. The indian ocean the worlds only closed ocean due to it being land. New ocean science and technology has allowed us to go further into the unknown than we ever thought possible. The worlds oceans 71% of the earths surface is covered by ocean water. The story of seas on earth and other planets by jan zalasiewicz. They may form just a sliver on the outside of the earth, but they are very important, not only in hosting life. You can get all the 7 continents of the world maps as well. Together they form a learning voyage around the world, discovering more about out ocean planet through core aspects of the science and geography. The phrases the ocean or the sea used without specification refer to.

Thus, the main source of the earths ocean has been thought to be ccs or adequate mixing of comets and the solar nebula. If you look at a world map, you can see that earths 5 oceans are vast. Volumes of the worlds oceans from etopo1 overview ncei has calculated the volumes of earths oceans table 1 using the etopo1 ice surface global relief model. Ocean worlds the story of seas on earth and other planets. A sea area of salt water of an ocean, or a large, usually salt water, closed lake for example, the caspian sea and the dead sea. Each lesson is written with an ocean expert scientist, advocate or explorer great for stem careers. Unit 2 oceans 5 lesson 1 the underwater world big ideas the oceans and seas on earth cover 710, or 70%, of its surface with salt water, creating an underwater world that is still largely unknown. From the coastal shallows to deeper, more mysterious worlds, we reveal the untold stories of the oceans most astonishing creatures. The number of oceans, or seas, in the world is a matter of classification. Ocean the four to seven largest named bodies of water in the world ocean, all of which have ocean in the name. Oceans of the world far from being an obstacle, the ocean is a highway for goods and people. Ocean worlds the story of seas on earth and other planets also available for. The characteristics of ocean worldsor ocean planetsprovide clues to their history. The row team finds that the confirmed ocean worlds enceladus, titan, and europa are the highest.

Big ideas the oceans and seas on earth cover 710, or 70%, of its surface with salt water, creating an underwater world that is still largely unknown. The great courses teams with the smithsonian to produce a vivid exploration of life in the worlds oceans with professor sean k. Et, nasa will hold a news conference announcing new results about ocean worlds in our solar system, and more tantalizingly, the. An ocean worlds habitation by earth like life is limited if the planet is completely covered by liquid water at the surface, even more restricted if a pressurized, solid ice layer is located between the global ocean and the lower rocky mantle. Simulations of ocean planets with 50 earth oceans worth of water indicate the pressure on the sea floor. This ocean region also drains some of the earths largest rivers including the amazon, mississippi, st. As climate change, pollution, and overexploitation by humans puts this precious resource at risk, it is more important than ever that we understand and appreciate the nature and history of oceans.

Nhbs jan zalasiewicz, mark williams, oxford university press. The story of seas on earth and other planets by zalasiewicz, jan, williams, mark isbn. Different combinations can be made using only a small num. Sea of cortez gulf of california sea of japan east sea seto inland sea. List of seas simple english wikipedia, the free encyclopedia. The following table lists the worlds oceans and seas, according to area and average depth, including the pacific ocean, atlantic ocean, indian ocean, southern ocean, mediterranean sea, arctic ocean, caribbean sea, bering sea, and more. Ocean worlds the story of seas on earth and other planets 2015. The exact origin of the phrase seven seas is uncertain, although there are references in ancient literature that date back thousands of years. Alternative scenarios involving water worlds include rocky planets whose silicate mantle is covered in a deep, global ocean, with no land in sight. The seven seas include the arctic, north atlantic, south atlantic, north pacific, south pacific, indian, and southern oceans. Apr 03, 2019 many people use the terms ocean and sea interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography the study of the earth s surface. The story of seas on earth and other planets full online. The sea near the middle of the frame is the size of earths lake superior.

Seas are smaller than oceans and are usually located where the land and ocean meet. From the beginning of life on earth to the state of our oceans today, youll learn about the latest research on marinemammal intelligence and communication, bioluminescence, exploration of the ocean floor, the smithsonians. After locating the earths major oceans on a world map, students will dive underwater to discover the plants and animals that live in the sea. Handson lessons and activities about oceans polar bears. There is much we still do not know about the story of the earth s oceans, and we are only just beginning to find indications of oceans on other planets.

This book is in some sense similar to the book life and death of planet earth by ward,but much more focussed in the seas,in the sense tha it tells the birth life and. Looking beyond earth the authors share data indicating that oceans have been present on both venus and mars and are probably extant on some of the moons of jupiter and saturn. Ocean worlds is the label given to objects in the solar system that host stable, globegirdling bodies of liquid. Its hard to fathom when we look at a globe, but our planet earths substantial covering of ocean is relatively modest. Mar 30, 2020 the seven seas include the arctic, north atlantic, south atlantic, north pacific, south pacific, indian, and southern oceans. Oceans represent earth s last great unexplored wilderness. They may form just a sliver on the outside of the earth, but they are very important, not only in hosting life, including the fish and other animals on which many humans depend, but in terms of their role in the earth system, in regulating climate, and cycling nutrients. Our ocean planet is a full unit of work covering all aspects of the ocean across key stage 2. Here is the list of top 10 biggest seas and oceans in the world. Smaller areas of water, usually close to land, are called seas. Under the deep blue sea grades k2 this lesson gives students the opportunity to explore oceans and ocean life. This ocean region also drains some of the earth s largest rivers including the amazon, mississippi, st. Okeanos is a body of water that composes much of a planets hydrosphere. A marginal sea is a division of an ocean, partially enclosed by islands.

The presence of the ocean touches every living thing no matter where it livesthe air we breathe, and the water we consume, are ultimately linked to the seas. The pacific of the early eighteenth century was not a single ocean but a vast and varied waterscape, a place of baffling complexity, with 25,000 islands and seemingly endless continental shorelines. The exploration of ocean worlds in the outer solar system offers the opportunity to search for an independent origin of life. The ocean is a continuous body of salt water that covers more than 70 percent of the earths surface. There is growing support for the hypothesis that enceladus and europa could have hydrothermally active seafloors and chemically rich ice shells and that these. Download ocean worlds the story of seas on earth and other planets ebook in pdf, epub, mobi. But in general there are seven large land masses on earth, namely africa, antarctica, asia, australia, europe, north america and south america. Just as we have split up all the land on earth into regions, and named those regions accordingly, so we have done with the ocean. The presence of solar neon in ocean basalts was first identified by craig and lupton craig h and lupton je 1976 earth and. The story of seas on earth and other planets by jan zalasiewicz, mark williams isbn.