Read the Lighter Or Heavier PDF for free. This is part of the official NCERT Book for Class 8 Science for the 2026-27 academic year. Students can use this book online or offline.
Study Lighter Or Heavier in NCERT Class 8 Science
Study this fun chapter from CBSE Book Class 8 Science Activity Lighter or Heavier to learn new things in Class 8 Science. Need help with answers? Check the NCERT Solutions for Class 8 Science to solve every question at the end of the chapter.
NCERT Class 8 Science Lighter Or Heavier PDF
MATERIALS- METAL AND NON METALS
Karan is a curious student. One day, he put some iron dust in a beaker containing dilute hydrochloric acid. He noticed fumes coming out of the beaker. He got worried and wondered what had happened? He picked up the beaker to throw away its contents. But, OUCH! It was so hot. His teacher will definitely scold him now for being careless.
What to do:
1. Take dilute hydrochloric acid in the glass bottle.
2. Put some iron filings or zinc dust in the balloon.
3. Fix the balloon on the mouth of the glass bottle so that the iron filings get dropped in the glass bottle. What do you notice? Does the balloon inflate?
4. Remove the balloon carefully and tie its mouth tightly without letting the gas escape.
5. Release the balloon. Does it rise and float away? What does this indicate? Is the gas trapped in the balloon lighter or heavier than air? Which gas could it be?In the above activity you allowed metal iron to react with an acid. What happens when metal carbonates and bicarbonates react with acids? Let us find by doing an activity.
6. Take 2mL of vinegar in a glass bottle.
7. Take a pinch of baking soda in a balloon.
8. Fix this balloon on the mouth of the glass bottle so that baking soda gets dropped in the glass bottle. Do you notice bubble formation? What happens to the balloon? Remove the balloon and tie its mouth tightly without letting the gas escape.
Release the balloon. Does it rise and float away? Does it behave the same way as the first gas filled balloon in the first case? Is this gas heavier or lighter than air? Find out from your science teacher how you can test for these gases?
Please refer to the link below - CBSE Class 8 Science Activity Lighter or Heavier
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NCERT Book for Class 8 Science Lighter Or Heavier
Chapter Textbook PDF for Class 8 Science
Secure your copy of the NCERT Textbook for Class 8 Science Lighter Or Heavier, updated per recent academic guidelines. Widely adopted across educational institutions, the Lighter Or Heavier e-textbook is essential because final question papers for Class 8 map directly to its framework. Download the full chapter text instantly in PDF format below.
Digital E-Book Collection for Class 8 Science
We have provided the complete collection of NCERT books in English Medium for all subjects in Class 8. These digital textbooks are very important for students who have English as their medium of studying. Each chapter, including Lighter Or Heavier, contains detailed explanations and a detailed list of questions at the end of the chapter. Simply click the links above to get your free Science textbook PDF and start studying today.
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The Class 8 Science Lighter Or Heavier book is designed to provide a strong conceptual understanding. Students should also access NCERT Solutions and revision notes on our platform to enhance their learning experience.
FAQs
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Yes, our collection of Class 8 Science NCERT books follow the 2026 rationalization guidelines. All deleted chapters have been removed and has latest content for you to study.
Downloading chapter-wise PDFs for Class 8 Science allows for faster access, saves storage space, and makes it easier to focus in 2026 on specific topics during revision.
NCERT books are the main source for NCERT exams. By reading CBSE Book Class 8 Science Activity Lighter or Heavier line-by-line and practicing its questions, students build strong understanding to get full marks in Science.