--- title: "NCERT Solutions Class 8 Science Exploring the Investigative World of Science" url: https://www.swavid.com/science/class/8/chapter/exploring-the-investigative-world-of-science/ncert-solutions dateModified: 2026-10-07T16:11:24+00:00 --- # NCERT Solutions Class 8 Science Exploring the Investigative World of Science This chapter introduces students to the investigative world of science by posing foundational questions about everyday phenomena, nature, and curiosity. It encourages young scientists to formulate scientific questions and design simple experiments. Free PDF (2 pages): https://www.swavid.com/api/seo/pdf/ncert/science/class-8/swavid-ncert-solutions-class-8-science-chapter-1-exploring-the-investigative-world-of-science-ebef2d4b05.pdf ## Probe and ponder ### Question 1 *2 marks · Very short answer* Why is one side of a puri thinner than the other? **Solution** 1. When rolling dough into a puri, pressure is applied unevenly using a rolling pin. 2. This results in one side having a slightly thinner layer of dough than the other. **Answer:** One side of a puri is often thinner than the other due to uneven pressure applied while rolling the dough. > Common mistake: Treating this as an exam question with a single fixed scientific definition instead of an invitation to observe and question. ### Question 2 *2 marks · Very short answer* Are there more grains of sand on all the beaches and deserts of the world, or more stars in our galaxy? **Solution** 1. Both grains of sand and stars in our galaxy are unimaginably large quantities. 2. Scientists estimate that the number of stars in our galaxy and grains of sand on Earth are both counted in the billions or trillions, inspiring further investigation. **Answer:** This is an open-ended curiosity question designed to make us think about vast numbers in nature and the universe. > Common mistake: Giving a definitive factual answer instead of recognizing it as a prompt for estimation and wonder. ### Question 3 *2 marks · Very short answer* Right from Grade 6, we've observed the incredible diversity of plants and animals around us. From the different shapes of leaves to the many kinds of insects—why has nature created such a vast variety? **Solution** 1. Living organisms depend on and respond to their environment, forming complex ecosystems. 2. This vast variety supports the delicate balance of life in ecosystems on our planet. **Answer:** Nature has created a vast variety of plants and animals to form complex ecosystems that support life and maintain balance on our planet. > Common mistake: Writing an incomplete answer without mentioning ecosystems and the balance of life. ### Question 4 *2 marks · Very short answer* Is there such a question that makes you curious about the world? Write it here! _________________________________ **Solution** 1. Science begins with wonder and asking simple questions about the world around us. 2. Students can write any genuine observation from daily life that sparks their curiosity to investigate further. **Answer:** An open question about an everyday phenomenon, such as why dough rises or why the sky is blue. > Common mistake: Leaving it blank or copying a question from the textbook instead of expressing a personal observation. ## Frequently asked questions ### How many questions are there in Chapter 1 of the new Class 8 Science book? The 'Probe and ponder' section contains 4 questions in total. You can find step-by-step solutions for all of them in SwaVid's free PDF available on this page only. ### Which topics do the questions in this chapter cover? The questions cover the diversity of living organisms, estimating large numbers in nature and astronomy, everyday observation, scientific curiosity, and scientific inquiry. SwaVid's solutions on this page explain each of these concepts clearly for the 2026-27 session. ### What are the types of questions asked in this new NCF 2023 chapter? The questions are primarily very short answer (VSA) types that test your foundational understanding. SwaVid provides detailed answers to help you tackle this question type effectively. ### How should I write my answers to score full marks in Class 8 Science exams? To score full marks, keep your answers concise, scientifically accurate, and directly address the core concept being asked. You can refer to SwaVid's structured solutions on this page to learn the correct answering technique. ### Is the free PDF for these NCERT solutions available for download? Yes, SwaVid provides a completely free PDF with comprehensive solutions for this chapter on this page only. It is fully updated according to the latest NCF 2023 guidelines for the 2026-27 session. ## Related pages - [Class 8 Science chapters](https://www.swavid.com/science/class/8) Solutions written by SwaVid, a personal AI tutor for Class 6 to 10 Maths and Science. Practise this chapter free: https://www.swavid.com/start/student