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What is an ecosystem? What is an Ecosystem? An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere). Ecosystems are the foundations of the Biosphere and they determine the health of the entire earth system. In an ecosystem, each organism has its own niche or role to play. Consider a small puddle at the back of your home. This very complex, wonderful interaction of living things and their environment, has been the foundations of energy flow and recycle of carbon and nitrogen. Anytime a ‘stranger’ (living thing(s) or external factor such as rise in temperature) is introduced to an ecosystem, it can be disastrous to that ecosystem. Usually, biotic members of an ecosystem, together with their abiotic factors depend on each other.

Editing Checklist for Self- and Peer Editing To view our printable materials, you must download the latest version of the free Adobe Acrobat software. Download now Our lesson plans are written and reviewed by educators using current research and the best instructional practices and are aligned to state and national standards. Choose from hundreds of topics and strategies. More ReadWriteThink has a variety of resources for out-of-school use. More Home › Classroom Resources › Printouts Printout Before you begin, be sure to model and discuss each step of the writing process (prewriting, drafting, revising, editing, and publishing), preferably using a whole-class story or class newsletter article. When they are ready for the editing stage of the writing process, students should edit their writing and then meet with a partner to engage in peer editing. This tool serves multiple purposes, including: The self-edit step The peer-edit step

Mocomi.com - Where kids can learn, discover, explore, play and more! Threats to Ecosystems Anything that attempts to alter the balance of the ecosystem potentially threatens the health and existence of that ecosystem. Some of these threats are not overly worrying as they may be naturally resolved provided the natural conditions are restored. Other factors can destroy ecosystems and render all or some of its life forms extinct. Here are a few: Habitat Destruction Economic activities such as logging, mining, farming and construction often involve clearing out places with natural vegetative cover. Pollution Water, land and air pollution all together play a crucial role in the health of ecosystems. Eutrophication This is the enrichment of water bodies with plant biomass as a result of continuous inflow of nutrients particularly nitrogen and phosphorus. Invasive species Any foreign specie (biological) that finds its way into an ecosystem, either by natural or human introduction can have an effect on the ecosystem. Overharvesting UV Radiation

Educational Games and Resources | Fuel the Brain Better Lesson India just banned all forms of disposable plastic in its capital | The Independent India’s capital city Delhi has introduced a ban on disposable plastic. Cutlery, bags, cups and other forms of single-use plastic were prohibited by the National Green Tribunal (NGT). There is particular concern in the country about the amount of plastic waste it produces. The ban affects the whole National Capital Territory (NCT) area of Delhi. It was introduced after complaints about the illegal mass burning of plastic and other waste at three local rubbish dumps, which has been blamed for causing air pollution. The Tribunal said in a statement: “Each of these sites is a depiction of the mess that can be created for environment and health of people of Delhi. “We direct that use of disposable plastic is prohibited in entire NCT of Delhi. “The Delhi government shall take steps for storage and use of plastic materials.” The ban came into force at the start of this month. India elephants with knitted jumpers Reuse content

Reference Tools for Kids: Research utility for children Quotations for Kids Our editors have carefully selected quotations for children. You may either read random quotes or you can search for a quote on a specific topic, from a famous person or literary source. You can also browse sources here. In our database of over 12,000 quotes for kids your are sure to find what your are looking for. History History for kids. Kids' Acronym Finder Search through our dictionary of thousands of acronyms, initialism and acronyms: You may either search for the full form of an acronym or search for an acronym by key words. Proverbs for Kids Every language is a storehouse of fascinating proverbs that say a lot about the ways of life in the briefest possible manner.

HippoCampus The Tree of Hope - A compilation of messages World Environment Day, 5 June 2011 Celebrating the International Year of Forests 2011 The Tree of Hope A compilation of messages The ‘Tree of Hope’ was one of the popular attractions of the ICIMOD Open House Day 2011, held on 12 March. What were the messages? Messages of all kinds adorned the tree; some reflected on the values of forests, their spiritual significance, their role in sustaining all kinds of biodiversity, and their tangible and intangible services to people. The message from the youngest one read, “People cut trees and I don’t like it”. Here we make an effort to compile the essence of all the messages as take-home statements that may inspire us to be responsible on our part.

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