Case Based Questions - Worksheet 1

Transcript

Chapter 1 Class 6 Curiosity - Case Based Question Worksheet 1 by teachoo Chapter: Chapter 1 Class 6 Science – Wonderful World of Science Name: _____________________________ School: _____________________________ Roll Number: _____________________________ Case 1: The Paper Airplane Challenge A group of students wants to find out what kind of paper makes an airplane that flies the farthest. They have three types of paper: regular notebook paper, thick construction paper, and thin newspaper. 1. What is the main scientific question the students are trying to answer? 2. One student guesses that the lightest paper (newspaper) will fly the farthest. What is this type of guess called in the scientific method? 3. Describe two things the students must keep the same for each test flight to make sure their experiment is fair. 4. After they throw the planes and measure the distances, what is the final step of the scientific method they need to perform, and what does it involve? Case 2: The Melting Ice Priya notices that ice cubes left in a metal bowl melt much faster than ice cubes left in a plastic bowl of the same size. She is curious about this observation. 1. What specific observation did Priya make that sparked her curiosity and would lead to a scientific question? 2. Based on her observation, formulate a clear, testable question for a scientific investigation. 3. Priya guesses that metal allows heat to travel through it faster than plastic does. Describe a simple experiment she could conduct to test if the material of the bowl is the cause. 4. What specific data or information would Priya need to collect during her experiment to be able to reach a valid conclusion? Case 3: The Cake That Didn't Rise A baker tries a new recipe for a cake, but it comes out flat and dense instead of light and fluffy. The baker thinks, "Maybe I used old baking powder." 1. What is the baker's initial observation, and what question does this observation lead him to ask? 2. The baker's thought, "Maybe I used old baking powder," represents which step of the scientific method? 3. Explain how the baker could conduct a fair experiment to test this specific guess about the baking powder. 4. If the second cake rises perfectly, what can the baker reasonably conclude? Why is this conclusion not 100% certain based on just one new test? Important links • Answer of this worksheet - https://www.teachoo.com/25533/5334/MCQ---Worksheet-1/category/Teachoo-Questions---MCQs/ • Full Chapter with Explanation, Activity, Worksheets and more – https://www.teachoo.com/subjects/science/class-6/chapter-1-curiosity/ • Science Class 6 – https://www.teachoo.com/subjects/science/class-6/ • Maths Class 6 - https://www.teachoo.com/subjects/cbse-maths/class-6/ For more worksheets, ad-free videos and Sample Papers – subscribe to Teachoo Black here - https://www.teachoo.com/black/   Answer Key to Case Based Question Worksheet 1 Case 1: The Paper Airplane Challenge 1. The main scientific question is: "Which type of paper—notebook, construction, or newspaper—will make a paper airplane that flies the farthest distance?" 2. In the scientific method, this type of educated guess is called a hypothesis. 3. To ensure a fair experiment, they must keep other factors (variables) the same. Two examples are: o The design of the airplane: All planes must be folded into the exact same design. o The throwing force: The same person should throw all the planes with a similar amount of force each time. 4. The final step is to analyse the results. This involves comparing the flight distances they measured for each type of paper to see if there is a clear pattern, which would help them determine which paper flew the farthest. Case 2: The Melting Ice 1. The specific observation that sparked her curiosity was that ice cubes in a metal bowl melted noticeably faster than identical ice cubes in a plastic bowl. 2. A testable question would be: "Does the material of the container affect the speed at which ice melts?" 3. To test her guess, Priya could place an identical ice cube in a metal bowl and another in a plastic bowl. She would then leave both bowls in the exact same location at the same time and observe them. 4. To reach a conclusion, Priya would need to collect time-based data. Specifically, she would need to measure the amount of time it takes for each ice cube to melt completely. Case 3: The Cake That Didn't Rise 1. The baker's initial observation is that the cake is flat and dense. This leads to the question, "Why didn't my cake rise properly?" 2. This thought is a hypothesis, which is a guess that provides a possible answer to his question. 3. To conduct a fair experiment, the baker should bake the cake again using the exact same recipe, ingredients, and oven temperature, with only one change: replacing the old baking powder with new baking powder. 4. He can reasonably conclude that the old baking powder was likely the cause of the problem. This conclusion isn't 100% certain because another variable could have accidentally changed without him noticing (e.g., the oven temperature might have been slightly different).