7 SCIENCE First Quarter – Module 1F SCIENTIFIC INVESTIGATION: Drawing Conclusions & Communicating Results Department of Education ● Republic of the Philippines Science – Grade 7 Alternative Delivery Mode First Quarter – Module 6: Drawing a Conclusion and Communicating Results First Edition, 2020 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.e., 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. 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Department of Education ● Republic of the Philippines Introductory Message For the Learner Welcome to an enjoyable learning adventure through Alternative Delivery Mode (ADM) Module as we capture another journey to the world of Science 7. Have you ever wondered how scientists discover their scientific breakthroughs? Will it be possible for a Grade 7 learner like you to do science the way your favorite scientist did? No need to worry, boys and girls! In this module, we will learn to do exciting and fun-filled investigation through the scientific method. This module was designed to provide you with fun and meaningful opportunities for guided and independent learning at your own pace and time. You will be enabled to process the contents of the learning resource while being an active learner. This module has the following parts and corresponding icons: What I Need to Know This gives you an idea of the skills or competencies you are expected to learn in the module. What I Know This part includes an activity that aims to check what you already know about the lesson to take. If you get all the answers correct (100%), you may decide to skip this module. What’s In This is a brief drill or review to help you link the current lesson with the previous one. What’s New In this portion, the new lesson will be introduced to you in various ways in a form of story, song, poem, problem opener, activity or situation. What is It This section provides a brief discussion of the lesson. This aims to help you discover and understand new concepts and skills. What’s More This comprises activities for independent practice to solidify your understanding and skills of the topic. You may check the answers to the exercises using the Answer Key at the end of the module. iv What I Have Learned This includes questions or blank sentence/paragraph to be filled in to process what you learned from the lesson. What I Can Do This section provides an activity which will help you transfer your new knowledge or skill into real life situations or concerns. Assessment This is a task which aims to evaluate your level of mastery in achieving the learning competency. Additional Activities In this portion, another activity will be given to you to enrich your knowledge or skill of the lesson learned. This also tends retention of learned concepts. Answer Key This contains answers to all activities in the module. The following are some reminders in using this module: 1. Use the module with care. Do not put unnecessary mark/s on any part of the module. Use your Science activity notebook in answering the exercises. 2. Don’t forget to answer What I Know before moving on to the other activities included in the module. 3. Read the instructions carefully before doing each task. 4. Observe honesty and integrity in doing the tasks and in checking your answers. 5. Finish the task at hand before proceeding to the next. 6. Return this module to your teacher/facilitator once you are through with it. For the Facilitator The task of the facilitator is to assist the learners in going through the module and answer learners’ queries or questions when they encounter any difficulty in answering the tasks in this module. Thus, the facilitator will monitor learners’ progress to accomplish the module with best learning outcomes. We hope that through this material, you will experience meaningful learning and gain deep understanding of the relevant competencies. You can do it! Always bear in mind that you are not alone. v TABLE OF CONTENTS What I Need to Know ……………………………………………………..... 1 What I Know ……………………………………………………….. 2 What’s In ……………………………………………………….. 5 What’s New ……………………………………………………….. 6 What is It ……………………………………………………….. 7 Drawing a Conclusion ........………………………………………….. 7 Theory ……………………………………………………….. 7 Law ……………………………………………………….. 7 Communicating Results ..…………………………………………….. 8 What’s More ……………………………………………………... 8 ……………………………………………………… 10 What Can I Do ……………………………………………………….. 11 Assessment ……………………………………………………….. 12 Additional Activities ……………………………………………………….. 15 Answer Key ……………………………………………………….. 16 References ……………………………………………………….. 17 What I Have Learned vi What I Need to Know The second to the last step of the scientific method is to state your conclusion. Conclusions in science are reliable, although it is tentative; science is always a work in progress. Scientific conclusions are tentative because all ideas are open to examination for further improvement. Drawing conclusion is utilizing information that is implied to make meaning out of what is not clarified. When a conclusion is drawn, the validity of the conclusions and the research findings will be presented. On the other hand, communicating results is the sharing of results to others and allowing them to scrutinize your work for further enhancement. After going through this module, you are expected to describe the components of a scientific investigation (S7MT-Ia-1). Specifically, you are also expected to: 1. differentiate law from theory; 2. formulate a conclusion; and 3. relate the importance of communicating results in solving problems to others. This module was designed and written with you in mind. It is here to help you master the last two steps in Scientific Method: Drawing a Conclusion and Communicating Results. The scope of this module permits you to use different learning situations. You have to extend your patience in understanding and analyzing what you are reading. Follow the directions in the activities and answer the given test and exercises properly. 1 What I Know Before starting this module, you will be answering questions to determine what you already know about drawing conclusions and communicating results. I. Multiple Choice Directions: Choose the letter of the correct answer. Write your answers in your Science activity notebook. 1. How do you call the part of the Scientific Method that uses the data to help explain the results of the experiment? A. observation C. conclusion B. hypothesis D. purpose 2. Which of the following scientific skills is used when making conclusions? A. observe C. inquiry B. predict D. infer 3. Which of the following is the last step in the scientific method? A. doing background research C. communicating results B. constructing a hypothesis D. asking a question 4. How do you describe the purpose of a conclusion in the scientific method? A. It gives sources of information to help the investigation. B. It states an expected outcome of the investigation. C. It states whether the data supports the hypothesis. D. It explains the reason for doing the investigation. 5. Why is communication an important part of the scientific process? A. It means results do not need to be confirmed. B. It ensures that nobody makes mistakes. C. It helps science progress more quickly. D. It limits the flow of secret information. 2 6. Why do scientists communicate different results about the same topic? A. The results of scientific experiments can never be reproduced. B. Scientific data can be interpreted in different ways. C. Scientists support only their own opinions. D. Not all scientists use scientific methods. 7. What is the correct order of steps in the scientific method? A. Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze the results, and communicate results. B. Ask a question, analyze the results, make a hypothesis, test the hypothesis, draw conclusions, and communicate results. C. Make hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, and communicate results. D. Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, and communicate results. 8. Which is NOT a step in the scientific method? A. data collection and analysis C. forming a bias B. experimentation D. observation 9. When you decide whether or not the data supports the original hypothesis, you are ______. A. drawing conclusions C. making observations B. forming a hypothesis D. asking questions 10. Scientific studies must have clear and transparent methods so that the studies are __________. A. reproducible C. logical B. methodical D. biased II. True or False For items 11 – 15, identify whether the statement is True or False. Write A if the statement is True, and B if it is False. 11. Observable, repeatable and measurable are the factors to be considered in order for a problem to be studied in science. 3 12. Hypothesis, procedure and data must be considered in order to understand the conclusion of an experiment. 13. Inference is an observation and a universal negative. 14. The conclusion is the summary that tells us if our experimental data supports our hypothesis. 15. A conclusion states whether a hypothesis was right. 4 Lesson 1 Drawing Conclusions and Communicating Results What’s In You will have a vocabulary drill to recall your previous lessons in which you will unscramble the following vocabulary words and write a concise description about the word. Write your answers in your Science activity notebook. Ethical Variable Hypothesis Question Record Experiment Conclusion Scientific Method 5 Procedure Observe Research Interpret What’s New Activity 1: What is in the Riddle? Directions: Read and analyze each riddle and look for the right answer in the box. Write your answers in your Science activity notebook. School Chickens Cows Hangman Tiddlywinks A Tree House A. Some farmers have lot of these. Roaming around. Most of their food They eat from the ground. These animals are grown For their milk or their meat. They are big. It would hurt If one stepped on your feet! They are _____________________________________ B. It’s your move now. This is a game that is fun. You have lost half or your men. Your friend’s men are red. It is fun to double – jump. The game is ___________________________________ C. “It’s my favourite place!” Stephen said. “I love to go there. My friends are there. I do fun things there. I even learn new things there. It makes me sad in the summer. I don’t go there then. The place is ____________________________________ 6 Pigs Checkers What is It Step 6. Drawing a Conclusion A conclusion is a statement about the results of the experiment. You compare the results of the experiment with the hypothesis. If the data supports the hypothesis, then the hypothesis may be the explanation for the problem. If the data do not support the hypothesis, then more observations will be made, a new hypothesis will be formed, and the scientific method will be used. When a hypothesis has been tested many times under many different conditions and has been found to explain a group of observations, the hypothesis becomes a theory. Theories are explanations for some problems based on observations, experimentation and reasoning. While, if the same results have been obtained for so many times by different scientists, the summary of these experimental results becomes a law. Laws are summaries of many experimental results and observations. Laws are not the same with theories because laws tell only what happens, not why it happens. 7 Step 7. Communicating Results When a conclusion is drawn, the research can be presented to others to inform them of the findings and receive input about the validity of the conclusion drawn from the research. Reporting one’s research let other scientists repeat the investigation to see whether they get the same results. Getting the same results when an experiment is repeated is called replication. If results can be replicated, it means they are more likely to be corrected. Replication of investigations is one way that a hypothesis may eventually become a theory. What’s More Activity 2: Taking it into Practice Directions: This activity will allow you to use steps in scientific method. Prepare the materials and follow the procedures carefully. In this activity, you will need the following materials: four coins of different sizes – 10-peso, 5-peso, 1-peso and a 25-centavo, and a medicine dropper with water. Procedure: 1. Lay the coins one by one on a table. 2. Get a medicine dropper. 3. Fill the medicine dropper with water. 4. Drop the water in each coin one at a time. 8 5. Count the number of water drops needed to fill the coins. Stop dropping when the water spills over the coin. 6. Do the same procedure with the other coins. 7. Record the data on the table provided for. No. of Trials No. of Water Drops 10-peso 5-peso 1-peso 25-centavo 1 2 3 Average Guide Questions: 1. What is the problem in this activity? ___________________________________________________________________ ___________________________________________________________________ 2. Formulate your hypothesis. (List down as many as possible) ______________________________________________________________ ______________________________________________________________ 3. Analyze your results. Which coin holds the greatest number of water drops? Why? ______________________________________________________________ ______________________________________________________________ 4. What factor/s do you think has something to do with the differences in the number of water drops a coin can hold? ______________________________________________________________ 5. Which of the following can you identify as the responding variable? A. diameter of the dropper C. number of water drops B. kind of medicine dropper D. size of the coin 9 6. Where should you base your conclusion or generalization? Why? ______________________________________________________________ ______________________________________________________________ 7. Share your results to 2-3 classmates and compare your conclusions through facebook messenger or text message. What I Have Learned Fill in the Blanks Directions: Using what you have learned in this module, fill in the blanks with the correct word found in the box. Write your answers in your Science activity notebook. conclusion hypothesis explanations law theory summaries The (1) is the statement that answers the problem. When a hypothesis has been tested many times under many different conditions and has been found to explain a group of observations, the hypothesis becomes a ____(2)_____. If the same results have been obtained so many times by different scientists, the summary of these experimental results becomes a _____(3) . Theories are (4) for some phenomena based on observations, experimentation and reasoning. While laws, are (5) of many experimental results and observations. When a conclusion is drawn, the research can be presented to others to inform them of the findings and receive input about the validity of the conclusion drawn from the research. 10 What I Can Do Activity 3: Differentiate It! Directions: Differentiate Law from Theory by completing each statement using the words or phrases inside the box. a. The observed problem explanation observations experimentation reasoning summaries difference between a scientific law and scientific law refers to a description of an scientific theory refers to the (2) a theory is (1) this: a while a that is given to an observed phenomenon. b. Theories are explanations for some phenomena based on (4) and (5) . While laws, are (6) EXCELLENT! You are now done with all the activities in Module 1F. Ready for the 11 , of many experimental results and observations. Assessment? (3) Assessment Now, that you are done accomplishing the module, let us check your understanding about the lesson presented in this module. Read carefully and answer the questions given below. Choose the letter of the correct answer and write your answers in your Science activity notebook. I. True or False For items 1 – 5, identify whether the statement is True or False. Write A if the statement is True, and B if it is False. 1. Observable, repeatable and measurable are the factors to be considered in order for a problem to be studied in science. 2. Hypothesis, procedure and data must be considered in order to understand the conclusion of an experiment. 3. Inference is an observation and a universal negative. 4. The conclusion is the summary that tells us if our experimental data supports our hypothesis. 5. A conclusion states whether a hypothesis was right. 12 II. Multiple Choice For items 6 – 15, read carefully the following questions and choose the letter of your answer. 6. How do you describe the purpose of a conclusion in the scientific method? A. it gives source of information to help the investigation. B. it states whether the data supports the hypothesis. C. it states an expected outcome of the investigation. D. it explains the reason for doing the investigation. 7. Why is communication an important part of the scientific process? A. It means results do not need to be confirmed. B. It ensures that nobody makes mistakes. C. It helps science progress more quickly. D. It limits the flow of secret information. 8. Why do scientists communicate different results about the same topic? A. The results of scientific experiments can never be reproduced. B. Scientific data can be interpreted in different ways. C. Scientists support only their own opinions. D. Not all scientists use scientific methods. 9. What is the correct order of steps in the scientific method? A. Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze the results, and communicate results. B. Ask a question, analyze the results, make a hypothesis, test the hypothesis, draw conclusions, and communicate results. C. Make hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, and communicate results. D. Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, and communicate results. 10. Which is NOT a step in the scientific method? A. data collection and analysis C. forming a bias B. experimentation D. observation 13 11. When you decide whether or not the data supports the original hypothesis, you are ___________. A. drawing conclusions C. forming a hypothesis B. making observations D. asking questions 12. How do you call the part of the Scientific Method that uses the data to help explain the results of the experiment? A. observation C. conclusion B. hypothesis D. purpose 13. Which of the following scientific skills is used when making conclusion? A. predict C..inquiry B. observe D. infer 14. Which of the following is the last step in the scientific method? A. doing background research C. communicating results B. constructing a hypothesis D. asking a question 15. Scientific studies must have clear and transparent methods so that the studies are __________. A. reproducible C. logical B. methodical D. biased 14 Additional Activities Activity 4: Think and Solve Directions: Name three basic problems in your barangayy. Think of possible solutions to these problems applying your knowledge in scientific processes and scientific method. For more reliable data, interview at least 10 adult individuals in your barangay and ask what the main problems in your barangay are. Gather the necessary data and identify the top three problems. Problems of Locality Procedures in Solving the Problem 1. 2. 3. Guide Questions: 1. Explain how scientific knowledge is acquired and validated. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 2. When do scientific methods become valuable? ________________________________________________________________________ ________________________________________________________________________ Congratulations! You have successfully completed Module 1F. Excellent! You are now ready to do Scientific Investigation. 15 Answer Key 16 References Books ___________________________________________________________________________ Gutierrez, M. M. "Science and Technology for the Modern World." 18 25. Diwa Scholastic Press, Inc., Department of Education, 1999. Internet Sources ______________________________________________________________ Biology Corner. https://www.biologycorner.com/quiz/qz_scientific_method.html (accessed May 28, 2020). Biology Dictionary. 2017. https://biologydictionary.net/scientific-method/ (accessed May 25, 2020). Bryce, S. study.com. 2003. https://study.com/academy/lesson/what-isscientific-investigation-definition-steps-examples.html (accessed May 25, 2020). Chemistry LibreTexts. 2019. https://chem.libretexts.org/Courses/University of British Columbia/CHEM 100%3A The Chemical World/1.4%3A The Scientific Method - How Chemist Think (accessed May 28, 2020). CK - 12 Foundations. 2014. https://www.ck12.org/book/ck-12-physicalscience-for-middle-school/section/2.1/ (accessed May 26, 2020). Educational Research Techniques. https://educationalresearchtechniques.com/2014/12/07/identifying-aresearch-problem/ (accessed June 01, 2020). Enago Academy. 2020. https://www.enago.com/academy/how-todevelop-a-good-research-hypothesis/ (accessed May 28, 2020). Help Teaching. 2004. https://www.helpteaching.com/questions/Scientific_Method?pageNum=3 (accessed June 02, 2020). Learning Resources Portal. 2016. https://lrmds.deped.gov.ph/detail/7121 (accessed May 24, 2020). 17 Robeson.k12. https://www.robeson.k12.nc.us/cms/lib6/NC01000307/Centricity/Domain/ 3916/Drawing%20Conclusions.pdf (accessed June 02, 2020). STARBOOKS. https://starbooks.com (accessed May 28, 2020). Teacher Vision. 2007. https://www.teachervision.com/graph-chart0/analyzing-data (accessed June 01, 2020). Workforce Institute. 2014. https://workforceinstitute.org/scientificmethod-isnt-just-scientists/ (accessed May 26, 2020). 18 For inquiries or feedback, please write or call: Department of Education – Region 10 Zone 1, DepEd Building Masterson Avenue, Upper Balulang Cagayan de Oro City, 9000 Telefax: (088) 880 7072 E-mail Address: reiogn10@deped.govph