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M10 - Earth Sci - Q1 - jsjsyshsaososis
Industrial Engineering (ERGO1)
University of the Assumption
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####### CO_Q1_ESS SHS
Earth Science for STEM
Quarter 1 – Module 1 0 :
Activities that Affect the Quality
and Availability of Water
for Human Use
Earth Science for STEM Alternative Delivery Mode Quarter 1 – Module 1 0 : Activities that Affect the Quality and Availability of Water for Human Use First Edition, 202 1 Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties. Borrowed materials (i., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them. Published by the Department of Education Secretary: Leonor Magtolis Briones Undersecretary: Diosdado M. San Antonio Printed in the Philippines by ________________________ Department of Education – Region IV-A CALABARZON Office Address: Gate 2 Karangalan Village, Barangay San Isidro Cainta, Rizal 1800 Telefax: 02 - 8682 - 5773/8684-4914/8647- 7487 E-mail Address: 02 - 8682 - 5773/8684-4914/8647- 7487 Development Team of the Module Writer: Liezl L. Hernandez Editors: Ferdinand M. De Castro, Eleneth D. Escalona Reviewers: Mark Anthony P. Lagumen, Ma. Ruby A. Mendoza, Sally M. Evangelista, Niña Gracia P. Javier, Cyrus T. Festijo, Rowena D. Cabanding Illustrator: Lallie C. Buensalida Layout Artist: Annaliza Q. Aviles Management Team: Francis Cesar B. Bringas Job S. Zape Jr. Ramonito O. Elumbaring Reicon C. Condes Elaine T. Balaogan Fe M. Ong-ongowan Sacoro R. Comia Fe M. Fallurin Marieta N. Perez
Introductory Message
This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson. Each SLM is composed of different parts. Each part shall guide you step-by- step as you discover and understand the lesson prepared for you. Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these. In addition to the material in the main text, Notes to the Teacher are also provided to our facilitators and parents for strategies and reminders on how they can best help you on your home-based learning. Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task. If you have any questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator. Thank you.
####### 1 CO_Q1_ESS SHS
What I Need to Know
In this lesson, the learner will explain the activities that affect the quality and availability of water for human use. To achieve this learning competency, the learner should identify human activities that commonly affect the distribution, quantity, and chemical quality of water resources. After going through this module, you are expected to: 1. explain the different activities that affect the quality and availability of water; 2. describe the quality of water available in your community; 3. suggest ways of conserving water resources; and 4. employ promotion on the conservation of water through slogan.
####### 3 CO_Q1_ESS SHS
- Which of the following affects the quality of water? a. Wastes b. Climate c. Precipitation d. Hydropower plant
- What is the massive driver of pollution? a. Population b. Urbanization c. Development d. Climate change
- What human activity uses the most water? a. Mining b. Industrial c. Agriculture d. Construction
- Which of the following is not considered as the Philippines' main source of water? a. Rivers c. Lakes b. Ponds d. Groundwater reservoirs
- Which law would guide Filipinos to protect the country’s water resources from pollution? a. R. 9003 c. R. b. R. 8749 d. R. 9275
- Which of the following has the lowest distribution of water on Earth? a. River c. Glaciers b. Ocean d. Groundwater
- People living in the area where there is not enough supply of surface water tends to frequently pump water from the ground. What would be the result of this activity? a. Restoration c. Depletion b. Abundance d. Wealth
- Which is the best solution to restore water? a. Dispose of trash anywhere b. Avoid the use of chemical c. Enjoy water supply to the fullest d. Pumping should be free all the time
- What describes the condition of the drinking water? a. Quality c. Availability b. Suitability d. Capability
4 CO_Q1_ESS SHS
Lesson
1
Activities that Affect the
Quality and Availability of
Water for Human Use
Water is a substance that forms water resources such as oceans, lakes and rivers. Our resources are facing threat from a variety of factors, the majority of which are driven by human activities. The impact of these activities on the quality and availability of water for human consumption would be considerably reduced if these activities were addressed.
What’s In
Conservation is the ethical use and protection of valuable resources. Study the pictures then write two suggestions to conserve and protect water resources.
####### 6 CO_Q1_ESS SHS
What is It
Water quality describes the condition of the water, including chemical, physical, and biological characteristics, usually concerning its suitability for a particular purpose such as drinking or swimming. Water has physical and chemical characteristics. Some of the physical attributes include temperature, color, taste, odor, and turbidity. The temperature of water affects some of the important physical properties and characteristics of water: thermal capacity, density, specific weight, viscosity, surface tension, specific conductivity, salinity, and solubility of dissolved gases, etc. Color, on the other hand, is primarily a concern of water quality for aesthetic reasons. Colored water gives the appearance of being unfit to drink, even though the water may be perfectly safe for public use. It can indicate the presence of organic substances, such as algae or humic compounds. More recently, color has been used as a quantitative assessment of the presence of potentially hazardous or toxic organic materials in water. Taste and odor are human perceptions of water quality. Human perception of taste includes sour (hydrochloric acid), salty (sodium chloride), sweet (sucrose), and bitter (caffeine). Relatively simple compounds produce sour and salty tastes. However sweet and bitter tastes are produced by more complex organic compounds. Humans detect many more tips of odor than tastes. Organic materials discharged directly to water, such as falling leaves, runoff, etc., are sources of tastes and odor-producing compounds released during biodegradation. Furthermore, turbidity is a measure of the light-transmitting properties of water and is comprised of suspended and colloidal material. It is important for health and aesthetic reasons. The chemical characteristics of natural water are a reflection of the soils and rocks with which the water has been in contact. In addition, agricultural and urban runoff and municipal and industrial treated wastewater impact the water quality. Microbial and chemical transformations also affect the chemical characteristics of water. (Source: echo2.epfl/VICAIRE/mod_2/chapt_2/main.htm) Water with good qualities is good for human consumption. Water availability is defined as the quantity of water that can be used for human purposes without significant harm to ecosystems or other users. However, our water resources face a host of serious threats. Currently, about 40% of the world's population lives in water-stressed areas. (Source: freshwaterwatch.thewaterhub/.2020)
####### 7 CO_Q1_ESS SHS
Water scarcity occurs when the amount of water withdrawn from lakes, rivers or groundwater is so great that water supplies are no longer adequate to satisfy all human or ecosystem requirements, resulting in increased competition between water users and other demands. Water scarcity can be caused primarily by human activities which promote sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth. Human waste disposal contributes to pollution of the air, land, and water resources. Such pollution can affect the quality of rainwater and water resources both above and below ground, thus damaging our natural systems. Although it is difficult to instantly put an end to such problems, man must manage, develop, and protect water and related resources in an environmentally and economically sound manner.
What’s More
Read the essay. Make a concept map on the different activities that affect the quality and availability of water. How are aquatic ecosystems threatened by sediments in water? One of the most serious threats to water resources is the degradation of the ecosystem. It often takes place through changes of landscapes such as the clearance of forests, the conversion of natural landscapes to farmland, the growth of cities, the building of roads, and surface mining. Each type of change to a landscape will have its specific impact, usually directly on the natural ecosystem and directly or indirectly on water resources. Also, sediments can occur in bodies of water naturally, but they are also produced in large amounts because of land-use change and agriculture. Sediments are naturally occurring particles that develop as earth materials are broken down through weathering and erosion. Sediment can consist of sand, rocks, and minerals, or may consist of organic particles of plants and microbes. Activities such as farming, clearing forests, building roads, and mining can put too much soil and particulate matter as sediment in rivers. These sediments can harm plants and animals by carrying toxic chemicals into the water, smothering fish eggs and small organisms used by fish as food, raising the water temperature, and reducing the amount of sunlight penetrating the water. Sediment can also reduce the capacity of reservoirs and make it difficult for ships to navigate in waterways. It can also damage equipment used in water supply installations and hydroelectric plants, thus increasing their maintenance costs.
####### 9 CO_Q1_ESS SHS
What I Can Do
Put a check (✓) on the activities that support conservation of the availability and quality of water. _____1. Converting lands into farming _____2. Limiting urban growth _____3. Planting more trees _____4. Surface mining _____5. Minimizing sedimentation On a clean sheet of paper, write a slogan that promotes the conservation of water. Rubrics for Slogan Making 4 3 2 1 Creativity Slogan presents outstanding ideas and effort. Slogan presents good ideas and effort. Slogan presents some sort of ideas and effort. The slogan does not present creativity. Originality Excellent use of ideas and originality in crafting the slogan. Good use of ideas and originality in crafting the slogan. Average use of ideas and originality in crafting the slogan. Poor ideas and no originality in crafting the slogan. Grammar There is no grammatical error. There is only one grammatical error. There are two grammatical errors. There are three or more grammatical errors.
####### 10 CO_Q1_ESS SHS
Read and analyze the following questions. Answer each briefly. 1. Among the aforementioned activities, which brings great danger to the quality and availability of water? Support your answer.
2. Observe the physical characteristics of tap water at home. Write your
observations.
a. Color
____________________________________________________________________
b. Taste
____________________________________________________________________
c. Odor
____________________________________________________________________
d. Turbidity
____________________________________________________________________
3. Write three precautionary measures to maintain a clean and safe water for
human consumption.
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________Assessment
Read and analyze the following questions. Choose and write the letter that best describes the following statements. 1. Which human activities promote the quality of water? a. Cleaning of the seashore b. Surface mining c. Deforestation d. Urban growth 2. Which is NOT a cause of sedimentation in aquatic areas? a. Agriculture b. Reforestation c. Urban growth d. Surface mining
####### 12 CO_Q1_ESS SHS
- What activity extracts the valuable minerals or other geological materials from the Earth? a. Sedimentation b. Urbanization c. Agriculture d. Mining
- What quantity of water can be used for human purposes without significant harm to ecosystems or other users? a. Quality b. Suitability c. Capability d. Availability
- Why is there a scarcity of potable water supply? a. Water resources nowadays are polluted b. Inappropriate utilization of water c. Pumping is not regulated d. Deforestation
- What threat is brought by sedimentation to water and aquatic inhabitants? a. Lowers water temperature b. Fosters the fish eggs and small organisms c. Increases the amount of sunlight that penetrates the water d. Harms plants and animals by carrying toxic chemicals into the water
- Harmful materials created by human activities such as the throwing of waste and burning affect the quality of rainwater and water resources both above and below ground. Which phenomenon occurs in this scenario? a. Pollution b. Deforestation c. Climate change d. Landscape changes
Additional Activities
Congratulations! You have successfully finished Lesson 10. You may now proceed to Lesson 11. Please do an advanced reading on human activities, such as farming, construction of structures, and waste disposal that affect the quality and quantity of the soil or recall your elementary and junior high schools’ discussions on this topic. Good luck! You may advance to the next level.
####### 13 CO_Q1_ESS SHS
Answer Key
Assessment
a 1. b 2. c 3. c 4. a 5. d 6. d 7. b 8. d 9. b 10. d 11. d 12. a 13. d 14. a 15.
What's More
Activities that affect the quality and availability of water: clearance of forests - conversion of natural - resources building of roads - surface mining - sedimentation - Presentation of concept map may vary
What I Know
a 1. d 2. a 3. a 4. d 5. a 6. a 7. a 8. c 9. b 10. d 11. a 12. c 13. b 14. a 15.
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####### Ground Floor, Bonifacio Bldg., DepEd Complex
####### Meralco Avenue, Pasig City, Philippines 1600
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M10 - Earth Sci - Q1 - jsjsyshsaososis
Course: Industrial Engineering (ERGO1)
University: University of the Assumption
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