They start by looking for interconnections among components of the Earth system at the local level, using a study site close to their school. Students will learn to identify the parts of the Earth system and the processes that connect them. These activities will help students look at the Earth in a new way as a living system.
The lessons presented in this unit on Earth Systems expose students to some of the most current scientific research, data, and visualizations in a way that allows them to understand their world as an interconnected living system.
#The living earth worksheet how to#
Furthermore, understanding how the Earth system works is essential for making informed decisions about how to manage, protect, and sustain our planet and its natural resources. Understanding climate change requires understanding that Earth is a holistic system of dynamic, interacting components. However, truly understanding Earth as a system ≾arth System Science requires a quantitative exploration of the connections among all parts of the system: air, water, land, and life.Įarth system science is a key to climate literacy. RuzekBeginning to perceive Earth as a system can begin with something as simple as when we ï¬ rst feel warmth from sunshine or get wet standing in the rain. This picture shows the levels of organization in nature, from the individual organism to the biosphere.× Image Credit: M. The biosphere consists of many different biomes.
The biosphere is the part of Earth where all life exists, including all the land, water, and air where living things can be found. A group of similar ecosystems with the same general type of physical environment is called a biome. The nonliving environment includes water, sunlight, soil, and other physical factors. An ecosystem consists of all the living things ( biotic factors) in a given area, together with the nonliving environment ( abiotic factors). The community that includes the goldfish population also includes the populations of other fish, coral, and other organisms. 
All of the populations that live in the same area make up a community. For example, all of the goldfish living in the same area make up a goldfish population. Organisms of the same species that live in the same area make up a population. These levels are illustrated in Figure below. There are also levels of organization above the individual organism. Each type of tissue is made up of cells of the same type. The stomach, in turn, consists of different types of tissues. One of the organs of the digestive system is the stomach. The system shown here is the digestive system, which breaks down food into a form that cells can use. Organism: Individual living thing that may be made up of one or more organ systems.Įxamples of these levels of organization are shown in Figure below.Īn individual mouse is made up of several organ systems. Examples of organ systems in a human include the skeletal, nervous, and reproductive systems. Organ system: Group of organs that work together to perform a certain function. Plant organs include roots, stems, and leaves. Human organs include the brain, stomach, kidney, and liver. The tissues of an organ work together to perfume a specific function. Organ: Structure composed of one or more types of tissues. Tissue: Group of cells of the same kind. Cell: Basic unit of structure and function of all living things. For example, many individual organisms can be organized into the following levels: The living world can be organized into different levels. But for others, the cells come together to form tissues, tissues form organs, organs form organ systems, and organ systems combine to form an organism. And for some species it ends with the cell.
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