L2-S.-THE-SUBSYSTEM.pdf

EARTH AND LIFE SCIENCE MARIA ANA C. LAMPASA REVIEW 1. What are the unique characteristics of the earth that supports life? 2. How the characteristics of the Earth sustain the needs of a living organism? Read the statement and answer the question. Imagine walking along a rocky coast as a...

EARTH AND LIFE SCIENCE MARIA ANA C. LAMPASA REVIEW 1. What are the unique characteristics of the earth that supports life? 2. How the characteristics of the Earth sustain the needs of a living organism? Read the statement and answer the question. Imagine walking along a rocky coast as a storm blows in from the sea. The wind whips the ocean into whitecaps, and waves crash onto the shore. Before you have time to escape, blowing spray has soaked your clothes. A hard rain begins as you scrambled over the rocks to your car. During the adventure, you have observed the spheres of the Earth. THE EARTH SUBSYSTEM  Explain that the Earth is consists of four subsystems in which there is a constant flow of matter and energy across boundaries. (S11/12ES-Ia-e- 4) At the end of the learning session, you should be able to: 1. determine the four subsystems of the Earth; 2. describe the characteristics of each subsystem; 3. trace the flow of matter and energy in the Earth’s subsystems; and 4. express one’s internalized role as steward of the four subsystems concerning the flow of matter and energy. Analyze and label the given pictures. From the picture, create a general concept on each picture and identify the physical characteristics of the subsystem of the earth. Differentiate one with the another. THE EARTH SUBSYSTEM  ATMOSPHERE The gaseous layer above the Earth’s surface primarily composed of different gases such as nitrogen and oxygen. Other gases like argon, carbon dioxide, carbon monoxide, ozone and other inert gases made the remaining 1%. The atmosphere supports life because animals need oxygen and carbon dioxide for plants. It regulates climate. Acts as both blanket and filter, retaining heat at night and shielding from direct solar radiation during day.  BIOSPHERE The zone of the Earth where all forms of life exist: in the sea, on land, and in the water. It is sometimes called as the largest ecosystem where life inhabits. It is very thin layer of the earth's surface.  GEOSPHERE It is the solid part of the Earth that consists the entire planet from the center of the core to the outer crust. It includes core, mantle, and crust of the Earth.  HYDROSPHERE It is the water part of the earth which circulates among oceans, continents, glaciers, and atmosphere. 70 % of the Earth's surface is water-covered, and the oceans hold about 97.5 percent of all Earth's water.  Earth is a complex system made up of many smaller systems through which matter and energy are continuously cycled. Energy and matter flow through Earth’s spheres: geosphere, hydrosphere, atmosphere, and biosphere.  Energy flows through the atmosphere mostly by convection. How does matter and energy flow across the four subsystems of the Earth? The Earth consists of four subsystems, across whose boundaries matter and energy flows, the atmosphere (air), biosphere (living things), hydrosphere (water), and geosphere (land).  Give appropriate situation for each subsystem interaction. Example: BIOSPHERE & ATMOSPHERE – Plant produce oxygen 1. BIOSPHERE & HYDROSPHERE – 2. HYDROSPHERE & ATMOSPHERE – 3. LITHOSPHERE & HYDROSPHERE – 4. ATMOSPHERE & LITHOSPHERE – 5. ATMOSPHERE & BIOSPHERE – Conclude the following: 1. In this lesson, I have learned that Earth has subsystems which are the ___________________. 2. I learned that Earth subsystems are different from other one another in a way ________________.